World War I timeline
Encyclopedia
The following tables list the main events which happened during World War I
World War I
World War I , which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918...

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Legend
Southern Theater Western Theater Eastern Theater Italian Theater
Caucasian Theater Middle East Theater Balkan Theater
Colonial Theater Naval Theater Diplomacy and politics

1914

Royal Navy
Royal Navy
The Royal Navy is the naval warfare service branch of the British Armed Forces. Founded in the 16th century, it is the oldest service branch and is known as the Senior Service...

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Dates Events
June 28 Assassination of Archduke Franz Ferdinand of Austria
Assassination of Archduke Franz Ferdinand of Austria
On 28 June 1914, Archduke Franz Ferdinand of Austria, heir presumptive to the Austro-Hungarian throne, and his wife, Sophie, Duchess of Hohenberg, were shot dead in Sarajevo, by Gavrilo Princip, one of a group of six Bosnian Serb assassins coordinated by Danilo Ilić...

, the heir to the Austro-Hungarian throne, who is killed in Sarajevo
Sarajevo
Sarajevo |Bosnia]], surrounded by the Dinaric Alps and situated along the Miljacka River in the heart of Southeastern Europe and the Balkans....

 along with his wife, Duchess Sophie
Sophie, Duchess of Hohenberg
Sophie, Duchess of Hohenberg ; 1 March 1868 – 28 June 1914) was a Czech aristocrat, the morganatic wife of Archduke Franz Ferdinand of Austria. Their assassination sparked World War I.- Early life :...

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Details
July 5 Austria-Hungary
Austria-Hungary
Austria-Hungary , more formally known as the Kingdoms and Lands Represented in the Imperial Council and the Lands of the Holy Hungarian Crown of Saint Stephen, was a constitutional monarchic union between the crowns of the Austrian Empire and the Kingdom of Hungary in...

 seeks German support for a war against Serbia in case of Russian mobilization. Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 gives assurances of support.
July 23 Austria-Hungary sends an ultimatum to Serbia
Serbia
Serbia , officially the Republic of Serbia , is a landlocked country located at the crossroads of Central and Southeast Europe, covering the southern part of the Carpathian basin and the central part of the Balkans...

. The Serbian response is seen as unsatisfactory.
Details
July Ultimatum
The July Crisis was a diplomatic crisis among the major powers of Europe in the summer of 1914 that led to the First World War...

July 28 Austria-Hungary
Austria-Hungary
Austria-Hungary , more formally known as the Kingdoms and Lands Represented in the Imperial Council and the Lands of the Holy Hungarian Crown of Saint Stephen, was a constitutional monarchic union between the crowns of the Austrian Empire and the Kingdom of Hungary in...

 declares war on Serbia. Russia
Russia
Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...

 mobilizes.
July 31 Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 warns Russia to stop mobilizing. Russia says mobilization is against Austria-Hungary only.
August 1 Germany declares war on Russia
Russia
Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...

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Italy
Italy
Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

 declares its neutrality.
Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 and the Ottoman Empire
Ottoman Empire
The Ottoman EmpireIt was usually referred to as the "Ottoman Empire", the "Turkish Empire", the "Ottoman Caliphate" or more commonly "Turkey" by its contemporaries...

 sign a secret alliance treaty.
August 2 Germany invades Luxembourg
Luxembourg
Luxembourg , officially the Grand Duchy of Luxembourg , is a landlocked country in western Europe, bordered by Belgium, France, and Germany. It has two principal regions: the Oesling in the North as part of the Ardennes massif, and the Gutland in the south...

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Details
German occupation of Luxembourg in World War I
The German occupation of Luxembourg in World War I was the first of two military occupations of the Grand Duchy of Luxembourg by Germany in the twentieth century. From August 1914 until the end of World War I in November 1918, Luxembourg was under full occupation by the German Empire...

August 3 Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 declares war on France
France
The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

 and Belgium
Belgium
Belgium , officially the Kingdom of Belgium, is a federal state in Western Europe. It is a founding member of the European Union and hosts the EU's headquarters, and those of several other major international organisations such as NATO.Belgium is also a member of, or affiliated to, many...

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August 4 Germany invades Belgium
Belgium
Belgium , officially the Kingdom of Belgium, is a federal state in Western Europe. It is a founding member of the European Union and hosts the EU's headquarters, and those of several other major international organisations such as NATO.Belgium is also a member of, or affiliated to, many...

 to outflank the French army.
Details
Rape of Belgium
The Rape of Belgium is a wartime propaganda term describing the 1914 German invasion of Belgium. The term initially had a figurative meaning, referring to the violation of Belgian neutrality, but embellished reports of German atrocities soon gave it a literal significance...

Britain protests the violation of Belgian neutrality, guaranteed by a treaty;
German Chancellor replies that the treaty is just a chiffon de papier (a scrap of paper).
The United Kingdom
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

 declares war on Germany.
August 5 Montenegro
Montenegro
Montenegro Montenegrin: Crna Gora Црна Гора , meaning "Black Mountain") is a country located in Southeastern Europe. It has a coast on the Adriatic Sea to the south-west and is bordered by Croatia to the west, Bosnia and Herzegovina to the northwest, Serbia to the northeast and Albania to the...

 declares war on Austria-Hungary
Austria-Hungary
Austria-Hungary , more formally known as the Kingdoms and Lands Represented in the Imperial Council and the Lands of the Holy Hungarian Crown of Saint Stephen, was a constitutional monarchic union between the crowns of the Austrian Empire and the Kingdom of Hungary in...

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The Ottoman Empire
Ottoman Empire
The Ottoman EmpireIt was usually referred to as the "Ottoman Empire", the "Turkish Empire", the "Ottoman Caliphate" or more commonly "Turkey" by its contemporaries...

 closes the Dardanelles
Dardanelles
The Dardanelles , formerly known as the Hellespont, is a narrow strait in northwestern Turkey connecting the Aegean Sea to the Sea of Marmara. It is one of the Turkish Straits, along with its counterpart the Bosphorus. It is located at approximately...

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August 5–August 16 The Germans besiege and then capture the fortresses of Liège
Liège
Liège is a major city and municipality of Belgium located in the province of Liège, of which it is the economic capital, in Wallonia, the French-speaking region of Belgium....

, Belgium.
Details
August 6 Austria-Hungary declares war on Russia.
Serbia declares war on Germany.
August 7 The British Expeditionary Force arrives in France
France
The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

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Details
August 9 Montenegro declares war on Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

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August 11 France declares war on Austria-Hungary.
August 12 The United Kingdom declares war on Austria-Hungary.
August 14–August 24 Battle of the Frontiers
Battle of the Frontiers
The Battle of the Frontiers was a series of battles fought along the eastern frontier of France and in southern Belgium shortly after the outbreak of World War I. The battles represented a collision between the military strategies of the French Plan XVII and the German Schlieffen Plan...

. The Germans obtain a victory against the British Expeditionary Force and France's Fifth Army.
Details
Battle of the Frontiers
The Battle of the Frontiers was a series of battles fought along the eastern frontier of France and in southern Belgium shortly after the outbreak of World War I. The battles represented a collision between the military strategies of the French Plan XVII and the German Schlieffen Plan...

August 16–August 19 The Serbs defeat the Austro-Hungarians at the Battle of Cer
Battle of Cer
The Battle of Cer also known as Battle of Jadar was one of the first battles of World War I, it also marked the first Allied victory in the war. The battle was fought between the Austro-Hungarian Army and Serbian forces. The results improved Serbian standing in the Alliance...

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Details
Battle of Cer
The Battle of Cer also known as Battle of Jadar was one of the first battles of World War I, it also marked the first Allied victory in the war. The battle was fought between the Austro-Hungarian Army and Serbian forces. The results improved Serbian standing in the Alliance...

August 17 The Russian army enters East Prussia
East Prussia
East Prussia is the main part of the region of Prussia along the southeastern Baltic Coast from the 13th century to the end of World War II in May 1945. From 1772–1829 and 1878–1945, the Province of East Prussia was part of the German state of Prussia. The capital city was Königsberg.East Prussia...

. Battle of Stalluponen
Battle of Stalluponen
The Battle of Stallupönen, fought between Russian and German armies on August 17, 1914, was the opening battle of World War I on the Eastern Front...

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Details
Battle of Stalluponen
The Battle of Stallupönen, fought between Russian and German armies on August 17, 1914, was the opening battle of World War I on the Eastern Front...

August 20 The Germans attack the Russians in East Prussia. The attack is a failure in addition to being a violation of the Schlieffen Plan. Details
Battle of Gumbinnen
The Battle of Gumbinnen, initiated by forces of the German Empire on August 20, 1914, was the first major German offensive on the Eastern Front during the First World War...

August 17–September 2 Battle of Tannenberg: the Russian army undergoes a heavy defeat by the Germans. Details
Battle of Tannenberg (1914)
The Battle of Tannenberg was an engagement between the Russian Empire and the German Empire in the first days of World War I. It was fought by the Russian First and Second Armies against the German Eighth Army between 23 August and 30 August 1914. The battle resulted in the almost complete...

August 20 The Germans occupy Brussels
Brussels
Brussels , officially the Brussels Region or Brussels-Capital Region , is the capital of Belgium and the de facto capital of the European Union...

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August 22 Austria-Hungary declares war on Belgium.
August 23 Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

 declares war on Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

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August 23–August 25 Battle of Kraśnik
Battle of Krasnik
The Battle of Kraśnik started on August 23, 1914 in the province of Galicia and the adjacent areas across the border in the Russian Empire, in northern Austria , and ended two days later. The Austro-Hungarian First Army defeated the Russian Fourth Army. It was the first victory by Austria-Hungary...

. The Austro-Hungarian First Army defeats the Russian Fourth Army.
Details
Battle of Krasnik
The Battle of Kraśnik started on August 23, 1914 in the province of Galicia and the adjacent areas across the border in the Russian Empire, in northern Austria , and ended two days later. The Austro-Hungarian First Army defeated the Russian Fourth Army. It was the first victory by Austria-Hungary...

August 24–September 7 The Germans siege and capture the Maubeuge Fortress. Details
Siege of Maubeuge
The Siege of Maubeuge took place between August 24 and September 7, 1914 when the French garrison of the Maubeuge Fortress finally surrendered to the Germans at the start of World War I on the Western Front....

August 25 Japan declares war on Austria-Hungary.
August 26 British and French forces invade Togoland
Togoland
Togoland was a German protectorate in West Africa from 1884 to 1914, encompassing what is now the nation of Togo and most of what is now the Volta Region of Ghana. The colony was established during the period generally known as the "Scramble for Africa"...

, a German protectorate in West Africa
West Africa
West Africa or Western Africa is the westernmost region of the African continent. Geopolitically, the UN definition of Western Africa includes the following 16 countries and an area of approximately 5 million square km:-Flags of West Africa:...

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Details
Togoland
Togoland was a German protectorate in West Africa from 1884 to 1914, encompassing what is now the nation of Togo and most of what is now the Volta Region of Ghana. The colony was established during the period generally known as the "Scramble for Africa"...

August 26–August 27 Battle of Le Cateau
Battle of Le Cateau
The Battle of Le Cateau was fought on 26 August 1914, after the British, French and Belgians retreated from the Battle of Mons and had set up defensive positions in a fighting withdrawal against the German advance at Le Cateau-Cambrésis....

. Allied retreat.
Details
Battle of Le Cateau
The Battle of Le Cateau was fought on 26 August 1914, after the British, French and Belgians retreated from the Battle of Mons and had set up defensive positions in a fighting withdrawal against the German advance at Le Cateau-Cambrésis....

August 26–September 11 Battle of Lemberg. The Russians capture Lviv
Lviv
Lviv is a city in western Ukraine. The city is regarded as one of the main cultural centres of today's Ukraine and historically has also been a major Polish and Jewish cultural center, as Poles and Jews were the two main ethnicities of the city until the outbreak of World War II and the following...

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Details
August 27–November 7 Battle of Tsingtao
Battle of Tsingtao
The Siege of Tsingtao was the attack on the German-controlled port of Tsingtao in China during World War I by Imperial Japan and the United Kingdom....

: British and Japanese forces capture the German-controlled port of Tsingtao in China
China
Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

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Details
Battle of Tsingtao
The Siege of Tsingtao was the attack on the German-controlled port of Tsingtao in China during World War I by Imperial Japan and the United Kingdom....

August 28 The Royal Navy wins the First Battle of Heligoland Bight
Heligoland Bight
The Heligoland Bight, also known as Helgoland Bight, is a bay which forms the southern part of the German Bight, itself a bay of the North Sea, located at the mouth of the Elbe river...

, North Sea
North Sea
In the southwest, beyond the Straits of Dover, the North Sea becomes the English Channel connecting to the Atlantic Ocean. In the east, it connects to the Baltic Sea via the Skagerrak and Kattegat, narrow straits that separate Denmark from Norway and Sweden respectively...

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Details
August 29–August 30 Battle of Saint Quentin
Battle of St. Quentin (1914)
The Battle of St. Quentin was fought during World War I.On the night of 26 August 1914, the Allies withdrew from Le Cateau to St...

, aka Battle of Guise. Orderly Allied retreat.
Details
Battle of St. Quentin (1914)
The Battle of St. Quentin was fought during World War I.On the night of 26 August 1914, the Allies withdrew from Le Cateau to St...

August 30 New Zealand
New Zealand
New Zealand is an island country in the south-western Pacific Ocean comprising two main landmasses and numerous smaller islands. The country is situated some east of Australia across the Tasman Sea, and roughly south of the Pacific island nations of New Caledonia, Fiji, and Tonga...

 occupies German Samoa (later Western Samoa).
Details
History of Samoa
-Myths:According to legend, Samoa shares the common Polynesian ancestor of Tagaloa; according to many legends, Samoa was Tagaloa's first creation...

September 3–September 11 Austro-Hungarian defeat at the Battle of Rava Russka. Details
September 5–September 12 First Battle of the Marne
First Battle of the Marne
The Battle of the Marne was a First World War battle fought between 5 and 12 September 1914. It resulted in an Allied victory against the German Army under Chief of Staff Helmuth von Moltke the Younger. The battle effectively ended the month long German offensive that opened the war and had...

. The German advance on Paris
Paris
Paris is the capital and largest city in France, situated on the river Seine, in northern France, at the heart of the Île-de-France region...

 is halted, marking the failure of the Schlieffen Plan
Schlieffen Plan
The Schlieffen Plan was the German General Staff's early 20th century overall strategic plan for victory in a possible future war in which the German Empire might find itself fighting on two fronts: France to the west and Russia to the east...

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Details
First Battle of the Marne
The Battle of the Marne was a First World War battle fought between 5 and 12 September 1914. It resulted in an Allied victory against the German Army under Chief of Staff Helmuth von Moltke the Younger. The battle effectively ended the month long German offensive that opened the war and had...

September 7–September 14 First Battle of the Masurian Lakes: The Russian Army of the Neman withdraws from East Prussia with heavy casualties. Details
September 8–September 17 Second Austro-Hungarian attempt at invading Serbia
Serbia
Serbia , officially the Republic of Serbia , is a landlocked country located at the crossroads of Central and Southeast Europe, covering the southern part of the Carpathian basin and the central part of the Balkans...

 fails.
September 9 Theobald von Bethmann Hollweg lays out Germany's war aims. Details
Septemberprogramm
The Septemberprogramm was a plan drafted by the German leadership in the early weeks of the First World War. It detailed Germany's ambitious gains should it win the war, as it expected...

September 11–September 21 Australian forces occupy German New Guinea
New Guinea
New Guinea is the world's second largest island, after Greenland, covering a land area of 786,000 km2. Located in the southwest Pacific Ocean, it lies geographically to the east of the Malay Archipelago, with which it is sometimes included as part of a greater Indo-Australian Archipelago...

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Details
Australian Naval and Military Expeditionary Force
The Australian Naval and Military Expeditionary Force was a small volunteer force of approximately 2,000 men, raised in Australia shortly after the outbreak of the First World War to seize and destroy German wireless stations in German New Guinea in the south-west Pacific...

September 13 Troops from South Africa
South Africa
The Republic of South Africa is a country in southern Africa. Located at the southern tip of Africa, it is divided into nine provinces, with of coastline on the Atlantic and Indian oceans...

 begin invading German South-West Africa
German South-West Africa
German South West Africa was a colony of Germany from 1884 until 1915, when it was taken over by South Africa and administered as South West Africa, finally becoming Namibia in 1990...

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Details
South-West Africa Campaign
The South-West Africa Campaign was the conquest and occupation of German South West Africa, now called Namibia, by forces from the Union of South Africa acting on behalf of the British Imperial Government at the beginning of the First World War.-Background:...

September 13–September 28 The First Battle of the Aisne
First Battle of the Aisne
The First Battle of the Aisne was the Allied follow-up offensive against the right wing of the German First Army & Second Army as they retreated after the First Battle of the Marne earlier in September 1914...

 ends in a substantial draw. The Race to the Sea
Race to the Sea
The Race to the Sea is a name given to the period early in the First World War when the two sides were still engaged in mobile warfare on the Western Front. With the German advance stalled at the First Battle of the Marne, the opponents continually attempted to outflank each other through...

begins.
Details
First Battle of the Aisne
The First Battle of the Aisne was the Allied follow-up offensive against the right wing of the German First Army & Second Army as they retreated after the First Battle of the Marne earlier in September 1914...

September 14 Erich von Falkenhayn
Erich von Falkenhayn
Erich von Falkenhayn was a German soldier and Chief of the General Staff during World War I. He became a military writer after World War I.-Early life:...

 replaces Helmuth von Moltke
Helmuth von Moltke the Younger
Helmuth Johann Ludwig von Moltke , also known as Moltke the Younger, was a nephew of Field Marshal Count Moltke and served as the Chief of the German General Staff from 1906 to 1914. The two are often differentiated as Moltke the Elder and Moltke the Younger...

 the Younger as German Chief of Staff.
Details
Erich von Falkenhayn
Erich von Falkenhayn was a German soldier and Chief of the General Staff during World War I. He became a military writer after World War I.-Early life:...

September 17 The Siege of Przemyśl
Siege of Przemysl
The Siege of Przemyśl was one of the greatest sieges of the First World War, and a crushing defeat for Austria-Hungary. The investment of Przemyśl began on September 24, 1914 and was briefly suspended on October 11 due to an Austro-Hungarian offensive...

 begins
Details
Siege of Przemysl
The Siege of Przemyśl was one of the greatest sieges of the First World War, and a crushing defeat for Austria-Hungary. The investment of Przemyśl began on September 24, 1914 and was briefly suspended on October 11 due to an Austro-Hungarian offensive...

September 28–October 10 The Germans siege and capture Antwerp, Belgium. Details
Siege of Antwerp
The Siege of Antwerp was an engagement between the German and the Belgian armies during World War I. A small number of British and Austrian troops took part as well.-Strategic Context:...

September 29–October 31 Battle of the Vistula, aka Battle of Warsaw. Details
Battle of the Vistula River
The Battle of the Vistula River, also known as the Battle of Warsaw, was a Russian victory against the German Empire on the Eastern Front during the First World War.-Background:...

October 16–October 31 Battle of the Yser
Battle of the Yser
The Battle of the Yser secured part of the coastline of Belgium for the allies in the "Race to the Sea" after the first three months of World War I.-Strategic Context:As part of the execution of the Schlieffen Plan, Belgium had been invaded by Germany...

. French and Belgian forces secure the coastline of Belgium.
Details
Battle of the Yser
The Battle of the Yser secured part of the coastline of Belgium for the allies in the "Race to the Sea" after the first three months of World War I.-Strategic Context:As part of the execution of the Schlieffen Plan, Belgium had been invaded by Germany...

October 19–November 22 The First Battle of Ypres
First Battle of Ypres
The First Battle of Ypres, also called the First Battle of Flanders , was a First World War battle fought for the strategic town of Ypres in western Belgium...

 ends the Race to the Sea. The Germans are prevented from reaching Calais and Dunkirk.
Details
First Battle of Ypres
The First Battle of Ypres, also called the First Battle of Flanders , was a First World War battle fought for the strategic town of Ypres in western Belgium...

November 1 Russia
Russia
Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...

 declares war on the Ottoman Empire
Ottoman Empire
The Ottoman EmpireIt was usually referred to as the "Ottoman Empire", the "Turkish Empire", the "Ottoman Caliphate" or more commonly "Turkey" by its contemporaries...

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Battle of Coronel
Battle of Coronel
The First World War naval Battle of Coronel took place on 1 November 1914 off the coast of central Chile near the city of Coronel. German Kaiserliche Marine forces led by Vice-Admiral Graf Maximilian von Spee met and defeated a Royal Navy squadron commanded by Rear-Admiral Sir Christopher...

. Von Spee's German cruiser squadron defeats a Royal Navy squadron under Christopher Cradock
Christopher Cradock
Rear-Admiral Sir Christopher "Kit" George Francis Maurice Cradock KCVO CB was a British officer of the Royal Navy. He was born at Hartforth, Richmond, North Yorkshire...

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Details
Battle of Coronel
The First World War naval Battle of Coronel took place on 1 November 1914 off the coast of central Chile near the city of Coronel. German Kaiserliche Marine forces led by Vice-Admiral Graf Maximilian von Spee met and defeated a Royal Navy squadron commanded by Rear-Admiral Sir Christopher...

November 2 The United Kingdom
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

 begins the naval blockade of Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

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Details
November 3 Montenegro
Montenegro
Montenegro Montenegrin: Crna Gora Црна Гора , meaning "Black Mountain") is a country located in Southeastern Europe. It has a coast on the Adriatic Sea to the south-west and is bordered by Croatia to the west, Bosnia and Herzegovina to the northwest, Serbia to the northeast and Albania to the...

 declares war on the Ottoman Empire
Ottoman Empire
The Ottoman EmpireIt was usually referred to as the "Ottoman Empire", the "Turkish Empire", the "Ottoman Caliphate" or more commonly "Turkey" by its contemporaries...

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November 3–November 5 Von Lettow-Vorbeck's German colonial forces defeat the British at the Battle of Tanga
Battle of Tanga
The Battle of Tanga, sometimes also known as the Battle of the Bees, was the unsuccessful attack by the British Indian Expeditionary Force “B” under Major General A.E. Aitken to capture German East Africa during World War I in concert with the invasion Force “C” near Longido on the slopes of...

, German East Africa.
Details
Battle of Tanga
The Battle of Tanga, sometimes also known as the Battle of the Bees, was the unsuccessful attack by the British Indian Expeditionary Force “B” under Major General A.E. Aitken to capture German East Africa during World War I in concert with the invasion Force “C” near Longido on the slopes of...

November 5 France and the United Kingdom declare war on the Ottoman Empire.
November 6 The Austro-Hungarians enter Belgrade
Belgrade
Belgrade is the capital and largest city of Serbia. It is located at the confluence of the Sava and Danube rivers, where the Pannonian Plain meets the Balkans. According to official results of Census 2011, the city has a population of 1,639,121. It is one of the 15 largest cities in Europe...

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November 9 Battle of Cocos
Battle of Cocos
The Battle of Cocos took place on 9 November 1914 during the First World War off the Cocos Islands, in the north east Indian Ocean. The German light cruiser attacked the British cable station on Direction Island and was engaged several hours later by the Australian light cruiser...

, northeast Indian Ocean
Indian Ocean
The Indian Ocean is the third largest of the world's oceanic divisions, covering approximately 20% of the water on the Earth's surface. It is bounded on the north by the Indian Subcontinent and Arabian Peninsula ; on the west by eastern Africa; on the east by Indochina, the Sunda Islands, and...

. The Australian cruiser Sydney destroys the German cruiser Emden.
Details
Battle of Cocos
The Battle of Cocos took place on 9 November 1914 during the First World War off the Cocos Islands, in the north east Indian Ocean. The German light cruiser attacked the British cable station on Direction Island and was engaged several hours later by the Australian light cruiser...

November 11–December 6 Battle of Łódź Details
November 11 Sultan Mehmed V declares Jihad
Jihad
Jihad , an Islamic term, is a religious duty of Muslims. In Arabic, the word jihād translates as a noun meaning "struggle". Jihad appears 41 times in the Quran and frequently in the idiomatic expression "striving in the way of God ". A person engaged in jihad is called a mujahid; the plural is...

 on the Allies
Allies
In everyday English usage, allies are people, groups, or nations that have joined together in an association for mutual benefit or to achieve some common purpose, whether or not explicit agreement has been worked out between them...

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Details
Battle of the Falkland Islands
The Battle of the Falkland Islands was a British naval victory over the Imperial German Navy on 8 December 1914 during the First World War in the South Atlantic...

December 16 The German fleet shells Scarborough and Hartlepool
Hartlepool
Hartlepool is a town and port in North East England.It was founded in the 7th century AD, around the Northumbrian monastery of Hartlepool Abbey. The village grew during the Middle Ages and developed a harbour which served as the official port of the County Palatine of Durham. A railway link from...

, England
England
England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

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Details
Hartlepool
Hartlepool is a town and port in North East England.It was founded in the 7th century AD, around the Northumbrian monastery of Hartlepool Abbey. The village grew during the Middle Ages and developed a harbour which served as the official port of the County Palatine of Durham. A railway link from...

December 24-December 25 An unofficial Christmas truce
Christmas truce
Christmas truce was a series of widespread unofficial ceasefires that took place along the Western Front around Christmas of 1914, during the First World War...

 is declared between large numbers of German and French forces.
Details
Christmas truce
Christmas truce was a series of widespread unofficial ceasefires that took place along the Western Front around Christmas of 1914, during the First World War...

December 29–January 2, 1915 The Russians win the Battle of Sarikamis
Battle of Sarikamis
The Battle of Sarikamish was an engagement between the Russian and Ottoman empires during World War I. It took place from December 22, 1914 to January 17, 1915 as part of the Caucasus Campaign. The outcome was a Russian victory. The Ottomans employed a strategy which demanded that their troops be...

, Caucasia.
Details
Battle of Sarikamis
The Battle of Sarikamish was an engagement between the Russian and Ottoman empires during World War I. It took place from December 22, 1914 to January 17, 1915 as part of the Caucasus Campaign. The outcome was a Russian victory. The Ottomans employed a strategy which demanded that their troops be...


1915

Dates Events
January 2 The Russian offensive in the Carpathians begins. It will continue until April 12.
January 19 First Zeppelin raid on Great Britain
Great Britain
Great Britain or Britain is an island situated to the northwest of Continental Europe. It is the ninth largest island in the world, and the largest European island, as well as the largest of the British Isles...

.
Details
Zeppelin
A Zeppelin is a type of rigid airship pioneered by the German Count Ferdinand von Zeppelin in the early 20th century. It was based on designs he had outlined in 1874 and detailed in 1893. His plans were reviewed by committee in 1894 and patented in the United States on 14 March 1899...

January 24 Battle of Dogger Bank
Battle of Dogger Bank
The Battle of Dogger Bank refers to a number of naval battles fought near and over the Dogger Bank in the North Sea:*The Battle of Dogger Bank , 7 June 1696, during the War of the Grand Alliance between a French squadron under Jean Bart and a Dutch convoy under Rutger Bucking*The Battle of Dogger...

 between squadrons of the British Grand Fleet and the German Hochseeflotte.
Details
Battle of Dogger Bank (1915)
The Battle of Dogger Bank was a naval battle fought near the Dogger Bank in the North Sea on 24 January 1915, during the First World War, between squadrons of the British Grand Fleet and the German High Seas Fleet....

January 28–February 3 The Ottomans fail to capture the Suez Canal
Suez Canal
The Suez Canal , also known by the nickname "The Highway to India", is an artificial sea-level waterway in Egypt, connecting the Mediterranean Sea and the Red Sea. Opened in November 1869 after 10 years of construction work, it allows water transportation between Europe and Asia without navigation...

.
Details
First Suez Offensive
The First Suez Offensive took place between the Ottoman Empire and the British Empire in the Sinai and Palestine Campaign of World War I...

January 31 Battle of Bolimov
Battle of Bolimov
The Battle of Bolimov was an inconclusive battle of World War I fought on January 31, 1915 between Germany and Russia and considered a preliminary to the Second Battle of the Masurian Lakes.- Battle :...

. First German use of chemical weapons.
Details
Poison gas in World War I
The use of chemical weapons in World War I ranged from disabling chemicals, such as tear gas and the severe mustard gas, to lethal agents like phosgene and chlorine. This chemical warfare was a major component of the first global war and first total war of the 20th century. The killing capacity of...

February 4 Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 begins submarine warfare
Submarine warfare
Naval warfare is divided into three operational areas: surface warfare, air warfare and underwater warfare. The latter may be subdivided into submarine warfare and anti-submarine warfare as well as mine warfare and mine countermeasures...

 against merchant vessels.
Details
February 7–February 22 Second Battle of the Masurian Lakes
Second Battle of the Masurian Lakes
The Second Battle of the Masurian Lakes, also known as the Winter Battle of the Masurian Lakes, was the northern part of the Central Powers' offensive on the Eastern Front in the winter of 1915...

. The Russian X Army is defeated.
Details
Second Battle of the Masurian Lakes
The Second Battle of the Masurian Lakes, also known as the Winter Battle of the Masurian Lakes, was the northern part of the Central Powers' offensive on the Eastern Front in the winter of 1915...

February 19 British and French naval attack on the Dardanelles
Dardanelles
The Dardanelles , formerly known as the Hellespont, is a narrow strait in northwestern Turkey connecting the Aegean Sea to the Sea of Marmara. It is one of the Turkish Straits, along with its counterpart the Bosphorus. It is located at approximately...

. The Gallipoli Campaign begins.
Details
Battle of Gallipoli
The Gallipoli Campaign, also known as the Dardanelles Campaign or the Battle of Gallipoli, took place at the peninsula of Gallipoli in the Ottoman Empire between 25 April 1915 and 9 January 1916, during the First World War...

March 10–March 13 Battle of Neuve Chapelle
Battle of Neuve Chapelle
The Battles of Neuve Chapelle and Artois was a battle in the First World War. It was a British offensive in the Artois region and broke through at Neuve-Chapelle but they were unable to exploit the advantage.The battle began on 10 March 1915...

. After an initial success, a British offensive is halted.
Details
Battle of Neuve Chapelle
The Battles of Neuve Chapelle and Artois was a battle in the First World War. It was a British offensive in the Artois region and broke through at Neuve-Chapelle but they were unable to exploit the advantage.The battle began on 10 March 1915...

March 22 The Siege of Przemyśl ends. The Russians capture the fortress. Details
Siege of Przemysl
The Siege of Przemyśl was one of the greatest sieges of the First World War, and a crushing defeat for Austria-Hungary. The investment of Przemyśl began on September 24, 1914 and was briefly suspended on October 11 due to an Austro-Hungarian offensive...

April 22–May 25 At the Second Battle of Ypres
Second Battle of Ypres
The Second Battle of Ypres was the first time Germany used poison gas on a large scale on the Western Front in the First World War and the first time a former colonial force pushed back a major European power on European soil, which occurred in the battle of St...

, ending in a stalemate.
Details
Second Battle of Ypres
The Second Battle of Ypres was the first time Germany used poison gas on a large scale on the Western Front in the First World War and the first time a former colonial force pushed back a major European power on European soil, which occurred in the battle of St...

April 25 Allied forces land on Gallipoli. Details
London Pact
London Pact
London Pact , or more correctly, the Treaty of London, 1915, was a secret pact between Italy and Triple Entente, signed in London on 26 April 1915 by the Kingdom of Italy, Great Britain, France and Russia....

 between the Entente and Italy
Italy
Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

.
Details
London Pact
London Pact , or more correctly, the Treaty of London, 1915, was a secret pact between Italy and Triple Entente, signed in London on 26 April 1915 by the Kingdom of Italy, Great Britain, France and Russia....

April 28 First Battle of Krithia
First Battle of Krithia
The First Battle of Krithia was the first Allied advance of the Battle of Gallipoli during the First World War. Starting at Helles on 28 April, three days after the initial landings, the attack broke down due to poor leadership and planning, lack of communications and exhaustion and demoralisation...

. The Allied advance is repelled.
Details
First Battle of Krithia
The First Battle of Krithia was the first Allied advance of the Battle of Gallipoli during the First World War. Starting at Helles on 28 April, three days after the initial landings, the attack broke down due to poor leadership and planning, lack of communications and exhaustion and demoralisation...

May 1–May 3 Battle of Gorlice-Tarnów: the German troops under General Mackensen break through the Russian lines in Galicia
Kingdom of Galicia and Lodomeria
The Kingdom of Galicia and Lodomeria was a crownland of the Habsburg Monarchy, the Austrian Empire, and Austria–Hungary from 1772 to 1918 .This historical region in eastern Central Europe is currently divided between Poland and Ukraine...

.
Details
Gorlice-Tarnów Offensive
The Gorlice–Tarnów Offensive during World War I started as a minor German offensive to relieve Russian pressure on the Austro-Hungarians to their south on the Eastern Front, but resulted in the total collapse of the Russian lines and their retreat far into Russia...

May 6–May 8 Second Battle of Krithia
Second Battle of Krithia
The Second Battle of Krithia continued the Allies' attempts to advance on the Helles battlefield during the Battle of Gallipoli of the First World War. The village of Krithia and neighbouring hill of Achi Baba had to be captured in order for the British to advance up the Gallipoli peninsula to the...

. The Allied attempts at advancing are thwarted again.
Details
Second Battle of Krithia
The Second Battle of Krithia continued the Allies' attempts to advance on the Helles battlefield during the Battle of Gallipoli of the First World War. The village of Krithia and neighbouring hill of Achi Baba had to be captured in order for the British to advance up the Gallipoli peninsula to the...

May 7 The British liner Lusitania
Lusitania
Lusitania or Hispania Lusitania was an ancient Roman province including approximately all of modern Portugal south of the Douro river and part of modern Spain . It was named after the Lusitani or Lusitanian people...

is sunk by a German U-boat.
Details
RMS Lusitania
RMS Lusitania was a British ocean liner designed by Leonard Peskett and built by John Brown and Company of Clydebank, Scotland. The ship entered passenger service with the Cunard Line on 26 August 1907 and continued on the line's heavily-traveled passenger service between Liverpool, England and New...

May 10 Troops from Hungary
Hungary
Hungary , officially the Republic of Hungary , is a landlocked country in Central Europe. It is situated in the Carpathian Basin and is bordered by Slovakia to the north, Ukraine and Romania to the east, Serbia and Croatia to the south, Slovenia to the southwest and Austria to the west. The...

 rout the Russians at Jarosław. Lviv is again in Austrian hands.
May 12 Windhoek
Windhoek
Windhoek is the capital and largest city of the Republic of Namibia. It is located in central Namibia in the Khomas Highland plateau area, at around above sea level. The 2001 census determined Windhoek's population was 233,529...

, capital of German South-West Africa, is occupied by South African troops.
Details
South-West Africa Campaign
The South-West Africa Campaign was the conquest and occupation of German South West Africa, now called Namibia, by forces from the Union of South Africa acting on behalf of the British Imperial Government at the beginning of the First World War.-Background:...

May 23 Italy
Italy
Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

 declares war on Austria-Hungary
Austria-Hungary
Austria-Hungary , more formally known as the Kingdoms and Lands Represented in the Imperial Council and the Lands of the Holy Hungarian Crown of Saint Stephen, was a constitutional monarchic union between the crowns of the Austrian Empire and the Kingdom of Hungary in...

.
June 4 Third Battle of Krithia
Third Battle of Krithia
The Third Battle of Krithia , fought on the Gallipoli peninsula during World War I, was the final in a series of Allied attacks against the Ottoman defences aimed at capturing the original objectives of 25 April 1915...

. Yet another Allied failure.
Details
Third Battle of Krithia
The Third Battle of Krithia , fought on the Gallipoli peninsula during World War I, was the final in a series of Allied attacks against the Ottoman defences aimed at capturing the original objectives of 25 April 1915...

The Russians leave Przemyśl
Przemysl
Przemyśl is a city in south-eastern Poland with 66,756 inhabitants, as of June 2009. In 1999, it became part of the Podkarpackie Voivodeship; it was previously the capital of Przemyśl Voivodeship....

.
Details
Gorlice-Tarnów Offensive
The Gorlice–Tarnów Offensive during World War I started as a minor German offensive to relieve Russian pressure on the Austro-Hungarians to their south on the Eastern Front, but resulted in the total collapse of the Russian lines and their retreat far into Russia...

June 22 Mackensen breaks again through the Russian lines in the Lviv
Lviv
Lviv is a city in western Ukraine. The city is regarded as one of the main cultural centres of today's Ukraine and historically has also been a major Polish and Jewish cultural center, as Poles and Jews were the two main ethnicities of the city until the outbreak of World War II and the following...

 area.
Details
Gorlice-Tarnów Offensive
The Gorlice–Tarnów Offensive during World War I started as a minor German offensive to relieve Russian pressure on the Austro-Hungarians to their south on the Eastern Front, but resulted in the total collapse of the Russian lines and their retreat far into Russia...

June 23–July 7 First Battle of the Isonzo
First Battle of the Isonzo
The First Battle of the Isonzo was fought between the Armies of Italy and Austria-Hungary on the Italian Front in World War I, between June 23 and July 7, 1915....

.
Details
First Battle of the Isonzo
The First Battle of the Isonzo was fought between the Armies of Italy and Austria-Hungary on the Italian Front in World War I, between June 23 and July 7, 1915....

June 27 The Austro-Hungarians re-enter Lviv. Details
Gorlice-Tarnów Offensive
The Gorlice–Tarnów Offensive during World War I started as a minor German offensive to relieve Russian pressure on the Austro-Hungarians to their south on the Eastern Front, but resulted in the total collapse of the Russian lines and their retreat far into Russia...

June 28–July 5 The British win the Battle of Gully Ravine
Battle of Gully Ravine
The Battle of Gully Ravine was a World War I battle fought at Cape Helles on the Gallipoli peninsula. By June 1915 all thoughts the Allies had of a swift decisive victory over the Ottoman Empire had vanished...

.
Details
Battle of Gully Ravine
The Battle of Gully Ravine was a World War I battle fought at Cape Helles on the Gallipoli peninsula. By June 1915 all thoughts the Allies had of a swift decisive victory over the Ottoman Empire had vanished...

July 9 The German forces in South-West Africa surrender. Details
South-West Africa Campaign
The South-West Africa Campaign was the conquest and occupation of German South West Africa, now called Namibia, by forces from the Union of South Africa acting on behalf of the British Imperial Government at the beginning of the First World War.-Background:...

July 18–August 3 Second Battle of the Isonzo
Second Battle of the Isonzo
The Second Battle of the Isonzo was fought between the armies of the Kingdom of Italy and of Austria-Hungary in the Italian Front in World War I, between 18 July and 3 August 1915.-Overview:...

.
Details
Second Battle of the Isonzo
The Second Battle of the Isonzo was fought between the armies of the Kingdom of Italy and of Austria-Hungary in the Italian Front in World War I, between 18 July and 3 August 1915.-Overview:...

August 5 The Germans occupy Warsaw
Warsaw
Warsaw is the capital and largest city of Poland. It is located on the Vistula River, roughly from the Baltic Sea and from the Carpathian Mountains. Its population in 2010 was estimated at 1,716,855 residents with a greater metropolitan area of 2,631,902 residents, making Warsaw the 10th most...

.
Details
Gorlice-Tarnów Offensive
The Gorlice–Tarnów Offensive during World War I started as a minor German offensive to relieve Russian pressure on the Austro-Hungarians to their south on the Eastern Front, but resulted in the total collapse of the Russian lines and their retreat far into Russia...

August 6–August 29 Battle of Sari Bair
Battle of Sari Bair
The Battle of Sari Bair , also known as the August Offensive, was the final attempt made by the British in August 1915 to seize control of the Gallipoli peninsula from the Ottoman Empire during First World War.The Battle of Gallipoli had raged on two fronts, Anzac and Helles, for three months since...

, aka the August Offensive. Last and unsuccessful attempt by the British to seize the Gallipoli
Gallipoli
The Gallipoli peninsula is located in Turkish Thrace , the European part of Turkey, with the Aegean Sea to the west and the Dardanelles straits to the east. Gallipoli derives its name from the Greek "Καλλίπολις" , meaning "Beautiful City"...

 peninsula.
Details
Battle of Sari Bair
The Battle of Sari Bair , also known as the August Offensive, was the final attempt made by the British in August 1915 to seize control of the Gallipoli peninsula from the Ottoman Empire during First World War.The Battle of Gallipoli had raged on two fronts, Anzac and Helles, for three months since...

September 1 Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 suspends unrestricted submarine warfare.
Details
September 8 Nicholas II removes Grand Duke Nicholas Nikolayevich as Commander-in-Chief of the Russian Army, personally taking that position. Details
September 19 The Germans occupy Vilnius
Vilnius
Vilnius is the capital of Lithuania, and its largest city, with a population of 560,190 as of 2010. It is the seat of the Vilnius city municipality and of the Vilnius district municipality. It is also the capital of Vilnius County...

. The Gorlice-Tarnów Offensive ends.
Details
Gorlice-Tarnów Offensive
The Gorlice–Tarnów Offensive during World War I started as a minor German offensive to relieve Russian pressure on the Austro-Hungarians to their south on the Eastern Front, but resulted in the total collapse of the Russian lines and their retreat far into Russia...

September 25–September 28 Battle of Loos
Battle of Loos
The Battle of Loos was one of the major British offensives mounted on the Western Front in 1915 during World War I. It marked the first time the British used poison gas during the war, and is also famous for the fact that it witnessed the first large-scale use of 'new' or Kitchener's Army...

. A major British offensive fails.
Details
Battle of Loos
The Battle of Loos was one of the major British offensives mounted on the Western Front in 1915 during World War I. It marked the first time the British used poison gas during the war, and is also famous for the fact that it witnessed the first large-scale use of 'new' or Kitchener's Army...

October 6 Serbia
Serbia
Serbia , officially the Republic of Serbia , is a landlocked country located at the crossroads of Central and Southeast Europe, covering the southern part of the Carpathian basin and the central part of the Balkans...

 is invaded by Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

, Austria-Hungary
Austria-Hungary
Austria-Hungary , more formally known as the Kingdoms and Lands Represented in the Imperial Council and the Lands of the Holy Hungarian Crown of Saint Stephen, was a constitutional monarchic union between the crowns of the Austrian Empire and the Kingdom of Hungary in...

 and Bulgaria
Bulgaria
Bulgaria , officially the Republic of Bulgaria , is a parliamentary democracy within a unitary constitutional republic in Southeast Europe. The country borders Romania to the north, Serbia and Macedonia to the west, Greece and Turkey to the south, as well as the Black Sea to the east...

.
Details
October 14 Bulgaria declares war on Serbia
October 15 The United Kingdom
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

 declares war on Bulgaria.
October 16 France
France
The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

 declares war on Bulgaria.
October 18–November 4 Third Battle of the Isonzo
Third Battle of the Isonzo
The Third Battle of the Isonzo was fought from October 18 through November 3 of 1915 between the armies of Italy and Austria-Hungary.- Background :...

Details
Third Battle of the Isonzo
The Third Battle of the Isonzo was fought from October 18 through November 3 of 1915 between the armies of Italy and Austria-Hungary.- Background :...

October 19 Italy
Italy
Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

 and Russia
Russia
Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...

 declare war on Bulgaria.
October 27 A French army lands in Salonika and, with the help of British and Italian troops, sets up a Balkan Front.
November 10–December 2 Fourth Battle of the Isonzo
Fourth Battle of the Isonzo
The Fourth Battle of the Isonzo was fought between the armies of Kingdom of Italy and those of Austria-Hungary on the Italian Front in World War I, between November 10 and December 2, 1915.-Overview:...

November 22–November 25 Battle of Ctesiphon
Battle of Ctesiphon
The Battle of Ctesiphon may refer to several battles fought near Ctesiphon:* Battle of Ctesiphon * Battle of Ctesiphon * Battle of Ctesiphon , between Roman emperor Julian the Apostate & Persian emperor Shapur II outside the walls of Ctesiphon...

, in present-day Iraq
Iraq
Iraq ; officially the Republic of Iraq is a country in Western Asia spanning most of the northwestern end of the Zagros mountain range, the eastern part of the Syrian Desert and the northern part of the Arabian Desert....

.
Details
Battle of Ctesiphon (1915)
The Battle of Ctesiphon was fought in November 1915 by the British Empire and British India, against the Ottoman Empire, within the Mesopotamian Campaign of World War I....

November 27 The Serbian army collapses. It will retreat to the Adriatic Sea
Adriatic Sea
The Adriatic Sea is a body of water separating the Italian Peninsula from the Balkan peninsula, and the system of the Apennine Mountains from that of the Dinaric Alps and adjacent ranges...

 and be evacuated by the Italian and French Navies.
Details
December 7 The Siege of Kut
Siege of Kut
The siege of Kut Al Amara , was the besieging of 8,000 strong British-Indian garrison in the town of Kut, 100 miles south of Baghdad, by the Ottoman Army. Its known also as 1st Battle of Kut. In 1915, its population was around 6,500...

, Mesopotamia, by the Ottomans begins.
Details
Siege of Kut
The siege of Kut Al Amara , was the besieging of 8,000 strong British-Indian garrison in the town of Kut, 100 miles south of Baghdad, by the Ottoman Army. Its known also as 1st Battle of Kut. In 1915, its population was around 6,500...

December 19 Douglas Haig
Douglas Haig
Douglas Haig, 1st Earl Haig was a British soldier and senior commander during World War I.Douglas Haig may also refer to:* Club Atlético Douglas Haig, a football club from Argentina* Douglas Haig , American actor...

 replaces John French
John French
John French may refer to:* John French , English doctor and chemist* John French , Canadian ice hockey player* John French , American drummer and musician...

 as commander of the British Expeditionary Force.
Details
Douglas Haig
Douglas Haig, 1st Earl Haig was a British soldier and senior commander during World War I.Douglas Haig may also refer to:* Club Atlético Douglas Haig, a football club from Argentina* Douglas Haig , American actor...


1916

Dates Events
January 8–January 16 Austro-Hungarian offensive against Montenegro
Montenegro
Montenegro Montenegrin: Crna Gora Црна Гора , meaning "Black Mountain") is a country located in Southeastern Europe. It has a coast on the Adriatic Sea to the south-west and is bordered by Croatia to the west, Bosnia and Herzegovina to the northwest, Serbia to the northeast and Albania to the...

, which capitulates.
January 9 The Gallipoli Campaign ends in an Allied defeat and an Ottoman victory. Details
Battle of Gallipoli
The Gallipoli Campaign, also known as the Dardanelles Campaign or the Battle of Gallipoli, took place at the peninsula of Gallipoli in the Ottoman Empire between 25 April 1915 and 9 January 1916, during the First World War...

January 11 Corfu
Corfu
Corfu is a Greek island in the Ionian Sea. It is the second largest of the Ionian Islands, and, including its small satellite islands, forms the edge of the northwestern frontier of Greece. The island is part of the Corfu regional unit, and is administered as a single municipality. The...

 occupied by the Allies.
Details
Corfu
Corfu is a Greek island in the Ionian Sea. It is the second largest of the Ionian Islands, and, including its small satellite islands, forms the edge of the northwestern frontier of Greece. The island is part of the Corfu regional unit, and is administered as a single municipality. The...

January 24 Reinhard Scheer
Reinhard Scheer
Reinhard Scheer was an Admiral in the German Kaiserliche Marine. Scheer joined the navy in 1879 as an officer cadet; he progressed through the ranks, commanding cruisers and battleships, as well as major staff positions on land. At the outbreak of World War I, Scheer was the commander of the II...

 is appointed commander of Germany's Hochseeflotte.
Details
Reinhard Scheer
Reinhard Scheer was an Admiral in the German Kaiserliche Marine. Scheer joined the navy in 1879 as an officer cadet; he progressed through the ranks, commanding cruisers and battleships, as well as major staff positions on land. At the outbreak of World War I, Scheer was the commander of the II...

January 27 Conscription introduced in the United Kingdom by the Military Service Act. Details
February 13–February 16 Battle of Erzurum
Battle of Erzurum (1916)
The Erzurum Offensive or Battle of Erzurum was a major winter offensive by the Imperial Russian Army on the Caucasus Campaign that led to the capture of the strategic city of Erzurum...

.
February 21 The Battle of Verdun
Battle of Verdun
The Battle of Verdun was one of the major battles during the First World War on the Western Front. It was fought between the German and French armies, from 21 February – 18 December 1916, on hilly terrain north of the city of Verdun-sur-Meuse in north-eastern France...

 begins.
February 28 German Kamerun (Cameroon) surrenders. Details
History of Cameroon
This article documents the history of Cameroon.-Early history:The earliest inhabitants of Cameroon were probably the Baka . They still inhabit the forests of the south and east provinces. Bantu speakers originating in the Cameroonian highlands were among the first groups to move out before other...

March 1 Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 resumes unrestricted submarine warfare.
Details
March 1–March 15 Fifth Battle of the Isonzo
Fifth Battle of the Isonzo
The Fifth Battle of the Isonzo was fought from March 9-15, 1916 between the armies of the Kingdom of Italy and those of Austria-Hungary. The Italians, under immense pressure from the French commanders, had decided to launch another offensive on the Soča River.-Background:After four attempts to...

.
March 8 Battle of Dujaila
Battle of Dujaila
The Battle of Dujaila was fought on 8 March 1916, between British and Ottoman forces during the First World War. The Ottoman forces, led by Colmar Freiherr von der Goltz were besieging Kut, when the Anglo-Indian relief force, led by Lieutenant-General Fenton Aylmer, attempted to relieve the city...

: a British attempt to relieve Kut fails.
Details
Battle of Dujaila
The Battle of Dujaila was fought on 8 March 1916, between British and Ottoman forces during the First World War. The Ottoman forces, led by Colmar Freiherr von der Goltz were besieging Kut, when the Anglo-Indian relief force, led by Lieutenant-General Fenton Aylmer, attempted to relieve the city...

March 18–April Lake Naroch Offensive
Lake Naroch Offensive
The Lake Naroch Offensive was a battle mainly fought in March 1916 to relieve the German pressure against the French at Verdun.- Background :...

.
April 23 Easter Rising
Easter Rising
The Easter Rising was an insurrection staged in Ireland during Easter Week, 1916. The Rising was mounted by Irish republicans with the aims of ending British rule in Ireland and establishing the Irish Republic at a time when the British Empire was heavily engaged in the First World War...

 by Irish
Irish people
The Irish people are an ethnic group who originate in Ireland, an island in northwestern Europe. Ireland has been populated for around 9,000 years , with the Irish people's earliest ancestors recorded having legends of being descended from groups such as the Nemedians, Fomorians, Fir Bolg, Tuatha...

 rebels against the United Kingdom
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

.
Details
Easter Rising
The Easter Rising was an insurrection staged in Ireland during Easter Week, 1916. The Rising was mounted by Irish republicans with the aims of ending British rule in Ireland and establishing the Irish Republic at a time when the British Empire was heavily engaged in the First World War...

April 29 The British forces under siege at Kut surrender to the Ottomans. Details
Siege of Kut
The siege of Kut Al Amara , was the besieging of 8,000 strong British-Indian garrison in the town of Kut, 100 miles south of Baghdad, by the Ottoman Army. Its known also as 1st Battle of Kut. In 1915, its population was around 6,500...

May 10 Germany suspends unrestricted submarine warfare. Details
May 15–June 10 Austro-Hungarian Strafexpedition in Trentino. Details
Battle of Asiago
The Battle of Asiago ' or the Trentino Offensive , nicknamed Strafexpedition by the Austrians, was a counteroffensive launched by the Austro-Hungarians on the Italian Front on 15 May 1916, during World War I...

May 31–June 1 Battle of Jutland
Battle of Jutland
The Battle of Jutland was a naval battle between the British Royal Navy's Grand Fleet and the Imperial German Navy's High Seas Fleet during the First World War. The battle was fought on 31 May and 1 June 1916 in the North Sea near Jutland, Denmark. It was the largest naval battle and the only...

 between Britain's Grand Fleet and Germany's Hochseeflotte.
Details
Battle of Jutland
The Battle of Jutland was a naval battle between the British Royal Navy's Grand Fleet and the Imperial German Navy's High Seas Fleet during the First World War. The battle was fought on 31 May and 1 June 1916 in the North Sea near Jutland, Denmark. It was the largest naval battle and the only...

June 4 The Brusilov Offensive
Brusilov Offensive
The Brusilov Offensive , also known as the June Advance, was the Russian Empire's greatest feat of arms during World War I, and among the most lethal battles in world history. Prof. Graydon A. Tunstall of the University of South Florida called the Brusilov Offensive of 1916 the worst crisis of...

 begins.
June 5 The Arab Revolt in Hejaz
Hejaz
al-Hejaz, also Hijaz is a region in the west of present-day Saudi Arabia. Defined primarily by its western border on the Red Sea, it extends from Haql on the Gulf of Aqaba to Jizan. Its main city is Jeddah, but it is probably better known for the Islamic holy cities of Mecca and Medina...

 begins.
Details
Arab Revolt
The Arab Revolt was initiated by the Sherif Hussein bin Ali with the aim of securing independence from the ruling Ottoman Turks and creating a single unified Arab state spanning from Aleppo in Syria to Aden in Yemen.- Background :...

The HMS Hampshire
HMS Hampshire
Five ships of the Royal Navy have been named HMS Hampshire after the English county: was a 46-gun ship launched in 1653 and sunk in 1697 in action with the French ship Pelican in Hudson Bay during the War of the Grand Alliance. was a 48-gun fourth-rate launched in 1698 and broken up in 1739. was a...

 is sunk off the Orkney Islands
Orkney Islands
Orkney also known as the Orkney Islands , is an archipelago in northern Scotland, situated north of the coast of Caithness...

; Lord Kitchener
Herbert Kitchener, 1st Earl Kitchener
Field Marshal Horatio Herbert Kitchener, 1st Earl Kitchener KG, KP, GCB, OM, GCSI, GCMG, GCIE, ADC, PC , was an Irish-born British Field Marshal and proconsul who won fame for his imperial campaigns and later played a central role in the early part of the First World War, although he died halfway...

 dies.
Details
HMS Hampshire (1903)
HMS Hampshire was a Devonshire-class armoured cruiser of the Royal Navy. She was built by Armstrong Whitworth, Elswick, Tyne and Wear and commissioned in 1905 at a cost of £833,817....

June 10 Italy
Italy
Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

: Paolo Boselli
Paolo Boselli
Paolo Boselli was an Italian politician who served as the 34th Prime Minister of Italy during World War I.Boselli was born in Savona, Liguria....

 succeeds Antonio Salandra
Antonio Salandra
Antonio Salandra was a conservative Italian politician who served as the 33rd Prime Minister of Italy between 1914 and 1916...

 as Prime Minister
Prime minister
A prime minister is the most senior minister of cabinet in the executive branch of government in a parliamentary system. In many systems, the prime minister selects and may dismiss other members of the cabinet, and allocates posts to members within the government. In most systems, the prime...

.
Details
Paolo Boselli
Paolo Boselli was an Italian politician who served as the 34th Prime Minister of Italy during World War I.Boselli was born in Savona, Liguria....

July 1 The Battle of the Somme begins. Details
First day on the Somme
The first day on the Somme, 1 July 1916, was the opening day of the Battle of Albert, which was the first phase of the British and French offensive that became known as the Battle of the Somme...

July 2 Battle of Erzincan
Battle of Erzincan
The Battle of Erzincan was a Russian victory over the Ottoman Empire during the First World War.In February 1916, Nikolai Yudenich had taken the cities of Erzurum and Trebizond. Trebizond had provided the Russians with a port to receive reinforcements in the Caucasus. Enver Pasha ordered the Third...

.
July 14 Battles for Longueval and Delville Wood (Initial phase of the Battle of the Somme) Details
Battle of Bazentin Ridge
Battle of Bazentin Ridge
The Battle of Bazentin Ridge, launched by the British Fourth Army at dawn on 14 July 1916, marked the start of the second phase of the Battle of the Somme. Dismissed beforehand by one French commander as "an attack organized for amateurs by amateurs", it turned out to be "hugely successful" for...

 (Initial phase of the Battle of the Somme)
Details
Battle of Bazentin Ridge
The Battle of Bazentin Ridge, launched by the British Fourth Army at dawn on 14 July 1916, marked the start of the second phase of the Battle of the Somme. Dismissed beforehand by one French commander as "an attack organized for amateurs by amateurs", it turned out to be "hugely successful" for...

July 23–August 7 Battle of Pozières
Battle of Pozières
The Battle of Pozières was a two week struggle for the French village of Pozières and the ridge on which it stands, during the middle stages of the 1916 Battle of the Somme. Though British divisions were involved in most phases of the fighting, Pozières is primarily remembered as an Australian battle...

 (Initial phase of the Battle of the Somme)
Details
Battle of Pozières
The Battle of Pozières was a two week struggle for the French village of Pozières and the ridge on which it stands, during the middle stages of the 1916 Battle of the Somme. Though British divisions were involved in most phases of the fighting, Pozières is primarily remembered as an Australian battle...

August 3–August 5 Battle of Romani
Battle of Romani
The Battle of Romani was fought east of the Suez Canal, near the Egyptian town of Romani and the site of ancient Pelusium on the Sinai Peninsula during the First World War...

. Ottoman attack on the British in the Sinai peninsula
Sinai Peninsula
The Sinai Peninsula or Sinai is a triangular peninsula in Egypt about in area. It is situated between the Mediterranean Sea to the north, and the Red Sea to the south, and is the only part of Egyptian territory located in Asia as opposed to Africa, effectively serving as a land bridge between two...

 fails.
Details
Battle of Romani
The Battle of Romani was fought east of the Suez Canal, near the Egyptian town of Romani and the site of ancient Pelusium on the Sinai Peninsula during the First World War...

August 3–August 17 Sixth Battle of the Isonzo
Sixth Battle of the Isonzo
The Sixth Battle of the Isonzo also known as the Battle of Gorizia was the most successful Italian offensive along the Soča River during World War I.- Background :...

. The Italians capture Gorizia
Gorizia
Gorizia is a town and comune in northeastern Italy, in the autonomous region of Friuli Venezia Giulia. It is located at the foot of the Julian Alps, bordering Slovenia. It is the capital of the Province of Gorizia, and it is a local center of tourism, industry, and commerce. Since 1947, a twin...

 (August 9).
Details
Sixth Battle of the Isonzo
The Sixth Battle of the Isonzo also known as the Battle of Gorizia was the most successful Italian offensive along the Soča River during World War I.- Background :...

August 18–September 5 Battle of Guillemont
Battle of Guillemont
The Battle of Guillemont was a British assault on the German-held village of Guillemont during the 1916 Battle of the Somme. Guillemont lay on the right flank of the British sector where it linked with French forces and by holding it, the Germans prevented the Allied armies from operating in...

 (intermediate phase of the Battle of the Somme)
Details
Battle of Guillemont
The Battle of Guillemont was a British assault on the German-held village of Guillemont during the 1916 Battle of the Somme. Guillemont lay on the right flank of the British sector where it linked with French forces and by holding it, the Germans prevented the Allied armies from operating in...

August 27 Italy
Italy
Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

 declares war on Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

.
Romania
Romania
Romania is a country located at the crossroads of Central and Southeastern Europe, on the Lower Danube, within and outside the Carpathian arch, bordering on the Black Sea...

 enters the war on the Entente's side. Her army is defeated in a few weeks.
August 29 Paul von Hindenburg
Paul von Hindenburg
Paul Ludwig Hans Anton von Beneckendorff und von Hindenburg , known universally as Paul von Hindenburg was a Prussian-German field marshal, statesman, and politician, and served as the second President of Germany from 1925 to 1934....

 replaces Erich von Falkenhayn
Erich von Falkenhayn
Erich von Falkenhayn was a German soldier and Chief of the General Staff during World War I. He became a military writer after World War I.-Early life:...

 as German Chief of Staff.
Details
Paul von Hindenburg
Paul Ludwig Hans Anton von Beneckendorff und von Hindenburg , known universally as Paul von Hindenburg was a Prussian-German field marshal, statesman, and politician, and served as the second President of Germany from 1925 to 1934....

September 6 The Central Powers
Central Powers
The Central Powers were one of the two warring factions in World War I , composed of the German Empire, the Austro-Hungarian Empire, the Ottoman Empire, and the Kingdom of Bulgaria...

 create a unified command.
September 9 Battle of Ginchy
Battle of Ginchy
The Battle of Ginchy took place on 9 September 1916 during the Battle of the Somme when the United Kingdom 16th Division captured the German-held village of Ginchy. However the Irish Royal Munster Fusiliers suffered heavy casualties in the process...

 (intermediate phase of the Battle of the Somme)
Details
Battle of Ginchy
The Battle of Ginchy took place on 9 September 1916 during the Battle of the Somme when the United Kingdom 16th Division captured the German-held village of Ginchy. However the Irish Royal Munster Fusiliers suffered heavy casualties in the process...

September 10–November 19 Allied offensive on the Salonika Front.
September 14–September 17 Seventh Battle of the Isonzo
Seventh Battle of the Isonzo
The Seventh Battle of the Isonzo was fought from September 14-17, 1916 between the armies of the Kingdom of Italy and those of Austria-Hungary.- Battle :...

September 15 Battle of Flers-Courcelette
Battle of Flers-Courcelette
The Battle of Flers-Courcelette, was a battle within the Franco-British Somme Offensive which took place in the summer and autumn of 1916. Launched on the 15th of September 1916 the battle went on for one week. Flers-Courcelette began with the overall objective of cutting a hole in the German...

 (last offensive of the Battle of the Somme). The British use armored tanks for the first time in history.
Details
Battle of Flers-Courcelette
The Battle of Flers-Courcelette, was a battle within the Franco-British Somme Offensive which took place in the summer and autumn of 1916. Launched on the 15th of September 1916 the battle went on for one week. Flers-Courcelette began with the overall objective of cutting a hole in the German...

September 20 The Brusilov Offensive
Brusilov Offensive
The Brusilov Offensive , also known as the June Advance, was the Russian Empire's greatest feat of arms during World War I, and among the most lethal battles in world history. Prof. Graydon A. Tunstall of the University of South Florida called the Brusilov Offensive of 1916 the worst crisis of...

 ends with a substantial Russian success.
Details
Brusilov Offensive
The Brusilov Offensive , also known as the June Advance, was the Russian Empire's greatest feat of arms during World War I, and among the most lethal battles in world history. Prof. Graydon A. Tunstall of the University of South Florida called the Brusilov Offensive of 1916 the worst crisis of...

September 25 Battle of Morval
Battle of Morval
The Battle of Morval, which began on 25 September 1916, was an attack by the British Fourth Army on the German-held villages of Morval, Gueudecourt and Lesboeufs during the Battle of the Somme. These villages were originally objectives of the major British offensive of 15 September, the Battle of...

 (part of the final stages of the Battle of the Somme)
Details
Battle of Morval
The Battle of Morval, which began on 25 September 1916, was an attack by the British Fourth Army on the German-held villages of Morval, Gueudecourt and Lesboeufs during the Battle of the Somme. These villages were originally objectives of the major British offensive of 15 September, the Battle of...

September 26–September 28 Battle of Thiepval Ridge
Battle of Thiepval Ridge
The Battle of Thiepval Ridge was the first large offensive mounted by the British Reserve Army of Lieutenant General Hubert Gough during the Battle of the Somme and was designed to benefit from British Fourth Army's Battle of Morval by starting 24 hours afterwards...

 (part of the final stages of the Battle of the Somme)
Details
Battle of Thiepval Ridge
The Battle of Thiepval Ridge was the first large offensive mounted by the British Reserve Army of Lieutenant General Hubert Gough during the Battle of the Somme and was designed to benefit from British Fourth Army's Battle of Morval by starting 24 hours afterwards...

October 1–November 5 Battle of Le Transloy
Battle of Le Transloy
The Battle of Le Transloy was the final offensive mounted by the British Fourth Army during the 1916 Battle of the Somme.-Prelude:With the successful conclusion of the preceding Battle of Morval at the end of September, the Fourth Army of Lieutenant General Henry Rawlinson had finally captured the...

 (part of the final stages of the Battle of the Somme)
Details
Battle of Le Transloy
The Battle of Le Transloy was the final offensive mounted by the British Fourth Army during the 1916 Battle of the Somme.-Prelude:With the successful conclusion of the preceding Battle of Morval at the end of September, the Fourth Army of Lieutenant General Henry Rawlinson had finally captured the...

October 9–October 12 Eighth Battle of the Isonzo
Eighth Battle of the Isonzo
The Eighth Battle of the Isonzo was fought from October 10-12, 1916 between Italy and Austria-Hungary.- Battle :The Eighth Battle of the Isonzo, fought briefly from 10-12 October 1916, was essentially a continuation of attempts made during the Seventh Battle of the Isonzo to extend the bridgehead...

.
October 24 The French recapture Fort Douaumont
Fort Douaumont
Fort Douaumont was the largest and highest fort on the ring of 19 large defensive forts protecting the city of Verdun, France since the 1890s. However, by 1915 the French General Staff had concluded that even the best protected forts of Verdun could not resist bombardments from the German 420mm ...

 near Verdun
Verdun
Verdun is a city in the Meuse department in Lorraine in north-eastern France. It is a sub-prefecture of the department.Verdun is the biggest city in Meuse, although the capital of the department is the slightly smaller city of Bar-le-Duc.- History :...

.
Details
November 1–November 4 Ninth Battle of the Isonzo
Ninth Battle of the Isonzo
The Ninth Battle of the Isonzo was an Italian offensive against Austria-Hungary in the course World War I. Including a triumvirate of battles launched after the Italians' successful seizure of Gorizia in August 1916 to extend their bridgehead to the left of the town, it ended in further failure for...

.
November 13–November 15 Battle of the Ancre
Battle of the Ancre
The Battle of the Ancre was the final act of the 1916 Battle of the Somme. Launched on 13 November 1916 by the British Fifth Army of Lieutenant General Hubert Gough, the objective of the battle was as much political as military.-Prelude:The Allied commanders were due to meet at Chantilly on 15...

 (closing phase of the Battle of the Somme)
Details
Battle of the Ancre
The Battle of the Ancre was the final act of the 1916 Battle of the Somme. Launched on 13 November 1916 by the British Fifth Army of Lieutenant General Hubert Gough, the objective of the battle was as much political as military.-Prelude:The Allied commanders were due to meet at Chantilly on 15...

November 18 The Battle of the Somme ends with enormous casualties and no winner. Details
Battle of the Somme (1916)
The Battle of the Somme , also known as the Somme Offensive, took place during the First World War between 1 July and 14 November 1916 in the Somme department of France, on both banks of the river of the same name...

November 21 HMHS Britannic
HMHS Britannic
HMHS Britannic was the third and largest of the White Star Line. She was the sister ship of and , and was intended to enter service as a transatlantic passenger liner. She was launched just before the start of the First World War and was laid up at her builders in Belfast for many months before...

sinks after hitting a German mine
Details
HMHS Britannic
HMHS Britannic was the third and largest of the White Star Line. She was the sister ship of and , and was intended to enter service as a transatlantic passenger liner. She was launched just before the start of the First World War and was laid up at her builders in Belfast for many months before...

Francis Joseph I, Emperor of Austria and King of Hungary, dies and is succeeded by Charles I. Details
November 25 David Beatty
David Cairns (politician)
John David Cairns was a Scottish Labour Party politician, who was a Member of Parliament from 2001 until his death. He represented the constituency of Inverclyde. He was the Minister of State at the Scotland Office until he resigned on 16 September 2008...

 replaces John Jellicoe
John Jellicoe, 1st Earl Jellicoe
Admiral of the Fleet John Rushworth Jellicoe, 1st Earl Jellicoe, GCB, OM, GCVO was a British Royal Navy admiral who commanded the Grand Fleet at the Battle of Jutland in World War I...

 as commander of the Grand Fleet. Jellicoe becomes First Lord of the Sea.
Details
John Jellicoe, 1st Earl Jellicoe
Admiral of the Fleet John Rushworth Jellicoe, 1st Earl Jellicoe, GCB, OM, GCVO was a British Royal Navy admiral who commanded the Grand Fleet at the Battle of Jutland in World War I...

December 5–December 7 United Kingdom
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

: Prime Minister Henry Asquith resigns and is succeeded by David Lloyd George
David Lloyd George
David Lloyd George, 1st Earl Lloyd-George of Dwyfor OM, PC was a British Liberal politician and statesman...

.
Details
December 6 The Germans occupy Bucharest
Bucharest
Bucharest is the capital municipality, cultural, industrial, and financial centre of Romania. It is the largest city in Romania, located in the southeast of the country, at , and lies on the banks of the Dâmbovița River....

. The capital of Romania
Romania
Romania is a country located at the crossroads of Central and Southeastern Europe, on the Lower Danube, within and outside the Carpathian arch, bordering on the Black Sea...

 moved to Iaşi
Iasi
Iași is the second most populous city and a municipality in Romania. Located in the historical Moldavia region, Iași has traditionally been one of the leading centres of Romanian social, cultural, academic and artistic life...

.
Details
Iasi
Iași is the second most populous city and a municipality in Romania. Located in the historical Moldavia region, Iași has traditionally been one of the leading centres of Romanian social, cultural, academic and artistic life...

December 13 Robert Nivelle
Robert Nivelle
Robert Georges Nivelle was a French artillery officer who served in the Boxer Rebellion, and the First World War. In May 1916, he was given command of the French Third Army in the Battle of Verdun, leading counter-offensives that rolled back the German forces in late 1916...

 replaces Joseph Joffre
Joseph Joffre
Joseph Jacques Césaire Joffre OM was a French general during World War I. He is most known for regrouping the retreating allied armies to defeat the Germans at the strategically decisive First Battle of the Marne in 1914. His popularity led to his nickname Papa Joffre.-Biography:Joffre was born in...

 as Commander-in-Chief of the French Army.
Details
Robert Nivelle
Robert Georges Nivelle was a French artillery officer who served in the Boxer Rebellion, and the First World War. In May 1916, he was given command of the French Third Army in the Battle of Verdun, leading counter-offensives that rolled back the German forces in late 1916...

December 23 Battle of Magdhaba
Battle of Magdhaba
The Battle of Magdhaba took place on 23 December 1916 south and east of Bir Lahfan in the Sinai desert, some inland from the Mediterranean coast and the town of El Arish...

 in the Sinai peninsula.
Details
Battle of Magdhaba
The Battle of Magdhaba took place on 23 December 1916 south and east of Bir Lahfan in the Sinai desert, some inland from the Mediterranean coast and the town of El Arish...

December 27 Togoland
Togoland
Togoland was a German protectorate in West Africa from 1884 to 1914, encompassing what is now the nation of Togo and most of what is now the Volta Region of Ghana. The colony was established during the period generally known as the "Scramble for Africa"...

 is divided into British and French administrative zones.
Details
Togoland
Togoland was a German protectorate in West Africa from 1884 to 1914, encompassing what is now the nation of Togo and most of what is now the Volta Region of Ghana. The colony was established during the period generally known as the "Scramble for Africa"...

December 29 Grigori Rasputin
Grigori Rasputin
Grigori Yefimovich Rasputin was a Russian Orthodox Christian and mystic who is perceived as having influenced the latter days of the Russian Emperor Nicholas II, his wife Alexandra, and their only son Alexei...

, Russia's éminence grise, is assassinated.
Details
Grigori Rasputin
Grigori Yefimovich Rasputin was a Russian Orthodox Christian and mystic who is perceived as having influenced the latter days of the Russian Emperor Nicholas II, his wife Alexandra, and their only son Alexei...


1917

Dates Events
January 9 Battle of Rafa
Battle of Rafa
The Battle of Rafa took place on 9 January 1917 at el Magruntein to the south of Rafa, close to the frontier between the Sultanate of Egypt's Sinai Peninsula and the Ottoman Empire, and in the area to the north and east of Sheikh Zowaiid...

. The British drive the Ottomans out of Sinai.
Details
Battle of Rafa
The Battle of Rafa took place on 9 January 1917 at el Magruntein to the south of Rafa, close to the frontier between the Sultanate of Egypt's Sinai Peninsula and the Ottoman Empire, and in the area to the north and east of Sheikh Zowaiid...

January 16 The German Foreign Secretary Arthur Zimmermann
Arthur Zimmermann
Arthur Zimmermann was State Secretary for Foreign Affairs of the German Empire from November 22, 1916, until his resignation on August 6, 1917. His name is associated with the Zimmermann Telegram during World War I...

 sends a telegram to his ambassador in Mexico
Mexico
The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...

, instructing him to propose the Mexican government an alliance against the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

.
Details
Zimmermann Telegram
The Zimmermann Telegram was a 1917 diplomatic proposal from the German Empire to Mexico to make war against the United States. The proposal was caught by the British before it could get to Mexico. The revelation angered the Americans and led in part to a U.S...

February 1 Germany resumes unrestricted submarine warfare. Details
February 23 Second Battle of Kut. The British recapture the city. Details
Second Battle of Kut
The Second Battle of Kut was fought on February 23, 1917, between British and Ottoman forces at Kut, Mesopotamia .The battle was part of the British advance to Baghdad begun in December 1916 by a 50,000-man British force organized in two army corps.The British, led by Frederick Stanley Maude,...

February 23–April 5 The Germans withdraw to the Hindenburg Line. Details
Hindenburg Line
The Hindenburg Line was a vast system of defences in northeastern France during World War I. It was constructed by the Germans during the winter of 1916–17. The line stretched from Lens to beyond Verdun...

March 1 Arz von Straussenberg replaces Conrad von Hötzendorf as Austro-Hungarian Chief of Staff. Details
March 8–March 11 The British capture Baghdad
Baghdad
Baghdad is the capital of Iraq, as well as the coterminous Baghdad Governorate. The population of Baghdad in 2011 is approximately 7,216,040...

.
Details
Fall of Baghdad (1917)
The British Indian Army fought the Ottoman Empire in the First World War. On 11 March 1917, after a series of defeats, it captured Baghdad after a two-year campaign.-Arrival of General Sir Frederick Stanley Maude:...

March 15 Russia: Czar Nicholas II abdicates. A provisional government is appointed. Details
February Revolution
The February Revolution of 1917 was the first of two revolutions in Russia in 1917. Centered around the then capital Petrograd in March . Its immediate result was the abdication of Tsar Nicholas II, the end of the Romanov dynasty, and the end of the Russian Empire...

March 26 First Battle of Gaza
Gaza
Gaza , also referred to as Gaza City, is a Palestinian city in the Gaza Strip, with a population of about 450,000, making it the largest city in the Palestinian territories.Inhabited since at least the 15th century BC,...

. The British attempt to capture the city fails.
Details
First Battle of Gaza
The First Battle of Gaza was fought in and around the town of Gaza on the Mediterranean coast in the southern region of Ottoman Palestine on 26 March 1917, during World War I...

April 6 The United States of America declares war on Germany.
April 9–April 12 The Canadians obtain a significant victory in the Battle of Vimy Ridge. Details
Battle of Vimy Ridge
The Battle of Vimy Ridge was a military engagement fought primarily as part of the Battle of Arras, in the Nord-Pas-de-Calais region of France, during the First World War. The main combatants were the Canadian Corps, of four divisions, against three divisions of the German Sixth Army...

April 16–May 9 The Second Battle of the Aisne (aka Nivelle Offensive) ends in disaster for both the French army and its commander Robert Nivelle
Robert Nivelle
Robert Georges Nivelle was a French artillery officer who served in the Boxer Rebellion, and the First World War. In May 1916, he was given command of the French Third Army in the Battle of Verdun, leading counter-offensives that rolled back the German forces in late 1916...

.
Details
Second Battle of the Aisne
The Second Battle of the Aisne , was the massive main assault of the French military's Nivelle Offensive or Chemin des Dames Offensive in 1917 during World War I....

April 19 Second Battle of Gaza. The Ottoman lines resist a British attack. Details
Second Battle of Gaza
The Second Battle of Gaza, fought in southern Palestine during the First World War, was another attempt mounted by British Empire forces to break Ottoman defences along the Gaza-Beersheba line...

April 29–May 20 Series of mutinies in the French army. Details
May 5–May 15 Allied offensive on the Salonika Front.
April 9–May 16 Battle of Arras. The British attack a heavily fortified German line without obtaining any strategic breakthrough. Details
Battle of Arras (1917)
The Battle of Arras was a British offensive during the First World War. From 9 April to 16 May 1917, British, Canadian, New Zealand, Newfoundland, and Australian troops attacked German trenches near the French city of Arras on the Western Front....

May 12–June 6 Tenth Battle of the Isonzo. Details
Tenth Battle of the Isonzo
The Tenth Battle of the Isonzo was an Italian offensive against Austria-Hungary in the course of World War I.-Background:With nine largely unsuccessful Isonzo battles conducted within an eighteen month period to date, Italian Chief of Staff Luigi Cadorna - responsible for launching all nine -...

May 15 Philippe Pétain
Philippe Pétain
Henri Philippe Benoni Omer Joseph Pétain , generally known as Philippe Pétain or Marshal Pétain , was a French general who reached the distinction of Marshal of France, and was later Chief of State of Vichy France , from 1940 to 1944...

 replaces Robert Nivelle
Robert Nivelle
Robert Georges Nivelle was a French artillery officer who served in the Boxer Rebellion, and the First World War. In May 1916, he was given command of the French Third Army in the Battle of Verdun, leading counter-offensives that rolled back the German forces in late 1916...

 as Commander-in-Chief of the French Army.
Details
Philippe Pétain
Henri Philippe Benoni Omer Joseph Pétain , generally known as Philippe Pétain or Marshal Pétain , was a French general who reached the distinction of Marshal of France, and was later Chief of State of Vichy France , from 1940 to 1944...

May 23 Battle of Mount Hermada in the Karst. Details
June 7–June 8 The British recapture Messines Ridge. Details
Battle of Messines
The Battle of Messines was a battle of the Western front of the First World War. It began on 7 June 1917 when the British Second Army under the command of General Herbert Plumer launched an offensive near the village of Mesen in West Flanders, Belgium...

June 10–June 29 Battle of Mount Ortigara. Details
Battle of Mount Ortigara
The Battle of Mount Ortigara was fought from 10 to 25 June 1917 between the Italian and Austro-Hungarian armies for possession of Mount Ortigara, in the Asiago Plateau.- Background :...

June 12 Greece: King Constantine I abdicates. Details
Constantine I of Greece
Constantine I was King of Greece from 1913 to 1917 and from 1920 to 1922. He was commander-in-chief of the Hellenic Army during the unsuccessful Greco-Turkish War of 1897 and led the Greek forces during the successful Balkan Wars of 1912–1913, in which Greece won Thessaloniki and doubled in...

June 25 First American troops land in France
France
The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

.
Details
American Expeditionary Force
The American Expeditionary Forces or AEF were the United States Armed Forces sent to Europe in World War I. During the United States campaigns in World War I the AEF fought in France alongside British and French allied forces in the last year of the war, against Imperial German forces...

July 1–July 19 The Kerensky Offensive fails. It is the last Russian initiative in the war. Details
Kerensky Offensive
The Kerensky Offensive was the last Russian offensive in World War I. It took place in July 1917.- Background :...

July 6 Arab rebels led by Lawrence of Arabia seize the Jordanian port of Aqaba
Aqaba
Aqaba is a coastal city in the far south of Jordan, the capital of Aqaba Governorate at the head of the Gulf of Aqaba. Aqaba is strategically important to Jordan as it is the country's only seaport. Aqaba is best known today as a diving and beach resort, but industrial activity remains important...

.
Details
Battle of Aqaba
Battle of Aqaba was fought for the Jordanian port of Aqaba. The attacking forces of the Arab Revolt, led by Auda ibu Tayi and T. E. Lawrence , were victorious over the Turkish defenders.-Background:...

July 20 Corfu Declaration about the future Kingdom of Yugoslavia
Kingdom of Yugoslavia
The Kingdom of Yugoslavia was a state stretching from the Western Balkans to Central Europe which existed during the often-tumultuous interwar era of 1918–1941...

.
Details
Corfu Declaration
The Corfu Declaration is the agreement that made the creation of the Kingdom of Yugoslavia possible. In 1916, the Serbian Parliament in exile decided the creation of the Kingdom of Yugoslavia at a meeting inside the Municipal Theatre of Corfu, Greece...

July 31 The Battle of Passchendaele (aka Third Battle of Ypres) begins. Details
August 6–August 20 Battle of Mărăşeşti. Details
Battle of Marasesti
The Battle of Mărăşeşti, Vrancea County, eastern Romania was a major battle fought during World War I between Germany and Romania.-Premise:...

August 18–August 28 Eleventh Battle of the Isonzo. Details
Eleventh Battle of the Isonzo
The Eleventh Battle of the Isonzo was a World War I battle fought by the Italian and Austro-Hungarian Armies on the Italian Front between August 18 and September 12, 1917.- Background :...

September 8 Russia: General Kornilov's coup attempt fails. Details
September 27–September 28 Battle of Ramadi, Mesopotamia. Details
Battle of Ramadi
The Battle of Ramadi was fought in central Iraq late in September 1917 between the British and the Ottomans; it was part of the Mesopotamian Campaign in World War I....

October 24–November 4 Battle of Caporetto. The Austro-Hungarians and Germans break through the Italian lines. The Italian army is defeated and falls back on the Piave River. Details
Battle of Caporetto
The Battle of Caporetto , took place from 24 October to 19 November 1917, near the town of Kobarid , on the Austro-Italian front of World War I...

October 30 Italy: Vittorio Emanuele Orlando succeeds Paolo Boselli
Paolo Boselli
Paolo Boselli was an Italian politician who served as the 34th Prime Minister of Italy during World War I.Boselli was born in Savona, Liguria....

 as Prime Minister.
Details
Vittorio Emanuele Orlando
Vittorio Emanuele Orlando was an Italian diplomat and political figure. He was born in Palermo, Sicily. His father, a landed gentleman, delayed venturing out to register his son's birth for fear of Giuseppe Garibaldi's 1,000 patriots who had just stormed into Sicily on the first leg of their march...

October 31–November 7 Third Battle of Gaza. The British break through the Ottoman lines. Details
Third Battle of Gaza
The Third Battle of Gaza was fought in 1917 in southern Palestine during the First World War. The British Empire forces under the command of General Edmund Allenby successfully broke the Ottoman defensive Gaza-Beersheba line...

November 2 Balfour Declaration
Balfour Declaration
The Balfour Declaration may refer to:* Balfour Declaration of 1917, a letter from Arthur Balfour on "the establishment in Palestine of a national home for the Jewish people"...

: the British government supports plans for a Jewish "national home" in Palestine.
Details
Balfour Declaration, 1917
The Balfour Declaration of 1917 was a letter from the British Foreign Secretary Arthur James Balfour to Baron Rothschild , a leader of the British Jewish community, for transmission to the Zionist Federation of Great Britain and Ireland.The statement was issued through the efforts of Chaim...

November 5 The Allies agree to establish a Supreme War Council at Versailles
Versailles
Versailles , a city renowned for its château, the Palace of Versailles, was the de facto capital of the kingdom of France for over a century, from 1682 to 1789. It is now a wealthy suburb of Paris and remains an important administrative and judicial centre...

.
November 7 The October Revolution begins in Russia. The Bolsheviks seize power. Details
October Revolution
The October Revolution , also known as the Great October Socialist Revolution , Red October, the October Uprising or the Bolshevik Revolution, was a political revolution and a part of the Russian Revolution of 1917...

November 8 Armando Diaz
Armando Diaz
Armando Diaz, 1st Duca della Vittoria was an Italian general and a Marshal of Italy.Born in Naples, Diaz began his military career as a student at the Military Academy of Turin, where he became an artillery officer. He was a colonel commanding the 93rd infantry during the Italo-Turkish War, and...

 replaces Luigi Cadorna
Luigi Cadorna
Luigi Cadorna GCB was an ItalianField Marshal, most famous for being thechief of staff of the Italian army during the first part of World War I.-Biography:...

 as Commander-in-Chief of the Italian Army.
Details
Armando Diaz
Armando Diaz, 1st Duca della Vittoria was an Italian general and a Marshal of Italy.Born in Naples, Diaz began his military career as a student at the Military Academy of Turin, where he became an artillery officer. He was a colonel commanding the 93rd infantry during the Italo-Turkish War, and...

November 9–December 28 First Battle of the Piave: the Austro-Hungarians and Germans try unsuccessfully to cross the river. Details
Battle of Caporetto
The Battle of Caporetto , took place from 24 October to 19 November 1917, near the town of Kobarid , on the Austro-Italian front of World War I...

November 10 The Battle of Passchendaele (aka Third Battle of Ypres) ends in a stalemate. Details
November 13 France: Paul Painlevé
Paul Painlevé
Paul Painlevé was a French mathematician and politician. He served twice as Prime Minister of the Third Republic: 12 September – 13 November 1917 and 17 April – 22 November 1925.-Early life:Painlevé was born in Paris....

 is replaced by Georges Clemenceau
Georges Clemenceau
Georges Benjamin Clemenceau was a French statesman, physician and journalist. He served as the Prime Minister of France from 1906 to 1909, and again from 1917 to 1920. For nearly the final year of World War I he led France, and was one of the major voices behind the Treaty of Versailles at the...

 as Prime Minister.
Details
Georges Clemenceau
Georges Benjamin Clemenceau was a French statesman, physician and journalist. He served as the Prime Minister of France from 1906 to 1909, and again from 1917 to 1920. For nearly the final year of World War I he led France, and was one of the major voices behind the Treaty of Versailles at the...

November 17 Second Battle of Heligoland Bight
Second Battle of Heligoland Bight
The Second Battle of Heligoland Bight was a naval engagement during the First World War. On 17 November 1917, German minesweepers clearing a path through the British minefield in the Heligoland Bight near the coast of Germany were intercepted by two British light cruisers, and , performing...

, North Sea.
Details
Second Battle of Heligoland Bight
The Second Battle of Heligoland Bight was a naval engagement during the First World War. On 17 November 1917, German minesweepers clearing a path through the British minefield in the Heligoland Bight near the coast of Germany were intercepted by two British light cruisers, and , performing...

November 20–December 3 Battle of Cambrai. A British attack fails and the battle results in a stalemate. Details
December 7 The United States declares war on Austria-Hungary.
December 8–December 26 Battle of Jerusalem. The British enter the city (December 11). Details
Battle of Jerusalem (1917)
The Battle of Jerusalem developed from 17 November with fighting continuing until 30 December 1917 during the Sinai and Palestine Campaign of World War I...

December 23 Russia signs an armistice with Germany.

1918

Dates Events
January 8 Woodrow Wilson
Woodrow Wilson
Thomas Woodrow Wilson was the 28th President of the United States, from 1913 to 1921. A leader of the Progressive Movement, he served as President of Princeton University from 1902 to 1910, and then as the Governor of New Jersey from 1911 to 1913...

 outlines his Fourteen Points.
Details
Fourteen Points
The Fourteen Points was a speech given by United States President Woodrow Wilson to a joint session of Congress on January 8, 1918. The address was intended to assure the country that the Great War was being fought for a moral cause and for postwar peace in Europe...

February 18 Fighting resumes on the Eastern Front.
February 21 The British capture Jericho
Jericho
Jericho ; is a city located near the Jordan River in the West Bank of the Palestinian territories. It is the capital of the Jericho Governorate and has a population of more than 20,000. Situated well below sea level on an east-west route north of the Dead Sea, Jericho is the lowest permanently...

.
February 25 German troops capture Estonia
Estonia
Estonia , officially the Republic of Estonia , is a state in the Baltic region of Northern Europe. It is bordered to the north by the Gulf of Finland, to the west by the Baltic Sea, to the south by Latvia , and to the east by Lake Peipsi and the Russian Federation . Across the Baltic Sea lies...

.
March 3 At Brest-Litovsk, Leon Trotsky signs the peace treaty with Germany. Details
Treaty of Brest-Litovsk
The Treaty of Brest-Litovsk was a peace treaty signed on March 3, 1918, mediated by South African Andrik Fuller, at Brest-Litovsk between Russia and the Central Powers, headed by Germany, marking Russia's exit from World War I.While the treaty was practically obsolete before the end of the year,...

March 21–March 25 First phase of the Spring Offensive (Operation Michael). The Germans obtain a Pyrrhic victory. Details
Spring Offensive
The 1918 Spring Offensive or Kaiserschlacht , also known as the Ludendorff Offensive, was a series of German attacks along the Western Front during World War I, beginning on 21 March 1918, which marked the deepest advances by either side since 1914...

March 23–August 7 Artillery bombardment of Paris
Paris
Paris is the capital and largest city in France, situated on the river Seine, in northern France, at the heart of the Île-de-France region...

.
Details
Paris Gun
The Paris Gun was a German long-range siege gun used to bombard Paris during World War I. It was in service from March-August 1918. When it was first employed, Parisians believed they'd been bombed by a new type of high-altitude zeppelin, as neither the sound of an airplane nor a gun could be heard...

March 26 French Marshall Ferdinand Foch is appointed Supreme Commander of all Allied forces. Details
Ferdinand Foch
Ferdinand Foch , GCB, OM, DSO was a French soldier, war hero, military theorist, and writer credited with possessing "the most original and subtle mind in the French army" in the early 20th century. He served as general in the French army during World War I and was made Marshal of France in its...

April 1- Royal Air Force
Royal Air Force
The Royal Air Force is the aerial warfare service branch of the British Armed Forces. Formed on 1 April 1918, it is the oldest independent air force in the world...

 founded by combining the Royal Flying Corps
Royal Flying Corps
The Royal Flying Corps was the over-land air arm of the British military during most of the First World War. During the early part of the war, the RFC's responsibilities were centred on support of the British Army, via artillery co-operation and photographic reconnaissance...

 and the Royal Naval Air Service
Royal Naval Air Service
The Royal Naval Air Service or RNAS was the air arm of the Royal Navy until near the end of the First World War, when it merged with the British Army's Royal Flying Corps to form a new service , the Royal Air Force...

.
April 4 Second phase of the Spring Offensive (Operation Georgette). The results are disappointing for the Germans. Details
Spring Offensive
The 1918 Spring Offensive or Kaiserschlacht , also known as the Ludendorff Offensive, was a series of German attacks along the Western Front during World War I, beginning on 21 March 1918, which marked the deepest advances by either side since 1914...

May 7 Treaty of Bucharest between Romania
Romania
Romania is a country located at the crossroads of Central and Southeastern Europe, on the Lower Danube, within and outside the Carpathian arch, bordering on the Black Sea...

 and the Central Powers. It will never be ratified.
Details
Treaty of Bucharest, 1918
The Treaty of Bucharest was a peace treaty which the German Empire forced Romania to sign on 7 May 1918 following the Romanian campaign of 1916-1917.-Main terms of the treaty:...

May 27–June 6 Third Battle of the Aisne (aka Operation Blücher-Yorck, third phase of the Spring Offensive). After initial gains, the German advance is halted. Details
Third Battle of the Aisne
The Third Battle of the Aisne was a battle of the German Spring Offensive during World War I that focused on capturing the Chemin des Dames Ridge before the American Expeditionary Force could arrive completely in France. It was one of a series of desperate offensives, known as the Kaiserschlacht,...

June 9–June 12 Final phase of the Spring Offensive (Operation Gneiseau). Despite substantial territorial gains, the Germans do not achieve their strategic goals Details
Spring Offensive
The 1918 Spring Offensive or Kaiserschlacht , also known as the Ludendorff Offensive, was a series of German attacks along the Western Front during World War I, beginning on 21 March 1918, which marked the deepest advances by either side since 1914...

June 13–June 23 Second Battle of the Piave: the Austro-Hungarian offensive is repelled. Details
Battle of the Piave River
The Battle of the Piave River , known in Italy as Battaglia del Solstizio , Battaglia di Mezzo Giugno , or Seconda Battaglia del Piave , was a decisive victory for the Italian Army during World War...

July 15–August 5 Second Battle of the Marne and last German offensive on the Western Front, which fails when the Germans are counterattacked by the French. Details
Second Battle of the Marne
The Second Battle of the Marne , or Battle of Reims was the last major German Spring Offensive on the Western Front during the First World War. The German attack failed when an Allied counterattack led by France overwhelmed the Germans, inflicting severe casualties...

August 8–August 11 Battle of Amiens, first phase of the Hundred Days Offensive. Details
September 12 Battle of Havrincourt, a phase of the Hundred Days Offensive. Details
Battle of Havrincourt
- Notes :# - a mistake on the part either of Byng or of Repington, as it was actually the 62nd Division....

September 15 The Allies break through the Bulgarian lines at Dobro Polje. Details
Battle of Dobro Pole
The Battle of Dobro Pole was a World War I battle, fought on 15 September 1918. The battle resulted in a decisive Entente victory, with a defeated Bulgaria left to sign an armistice, which removed it from World War I....

September 18–September 19 Battle of Doiran, The Bulgarians halt the British and Greek advance. Details
Battle of Doiran
The third Battle of Doiran was fought from 18 September to 19 September 1918, with the Greeks and the British assaulting the positions of the Bulgarian First Army near Dojran Lake. The battle was part of World War I and took place in the Balkan Theatre...

September 18–October 10 Battle of the Hindenburg Line, a phase of the Hundred Days Offensive. The Allies break through the German lines. Details
Battle of the Hindenburg Line
The Battle of St Quentin Canal was a pivotal battle of World War I that began on 29 September 1918 and involved British, Australian and American forces in the spearhead attack and as a single combined force against the German Siegfried Stellung of the Hindenburg Line...

September 19–September 21 Battle of Megiddo. The British conquer Palestine. Details
Battle of Megiddo (1918)
The Battle of Megiddo took place between 19 September and 1 October 1918, in what was then the northern part of Ottoman Palestine and parts of present-day Syria and Jordan...

September 26–November 11 Meuse-Argonne Offensive, the final phase of the Hundred Days Offensive and of World War I. Details
Meuse-Argonne Offensive
The Meuse-Argonne Offensive, or Maas-Argonne Offensive, also called the Battle of the Argonne Forest, was a part of the final Allied offensive of World War I that stretched along the entire western front.-Overview:...

September 30 Bulgaria
Bulgaria
Bulgaria , officially the Republic of Bulgaria , is a parliamentary democracy within a unitary constitutional republic in Southeast Europe. The country borders Romania to the north, Serbia and Macedonia to the west, Greece and Turkey to the south, as well as the Black Sea to the east...

 signs an armistice with the Allies.
October 1 The British enter Damascus
Damascus
Damascus , commonly known in Syria as Al Sham , and as the City of Jasmine , is the capital and the second largest city of Syria after Aleppo, both are part of the country's 14 governorates. In addition to being one of the oldest continuously inhabited cities in the world, Damascus is a major...

.
Details
Damascus
Damascus , commonly known in Syria as Al Sham , and as the City of Jasmine , is the capital and the second largest city of Syria after Aleppo, both are part of the country's 14 governorates. In addition to being one of the oldest continuously inhabited cities in the world, Damascus is a major...

October 20 Germany suspends submarine warfare. Details
October 24–November 4 Battle of Vittorio Veneto
Battle of Vittorio Veneto
The Battle of Vittorio Veneto was fought between 24 October and 3 November 1918, near Vittorio Veneto, during the Italian Campaign of World War I...

. The Austro-Hungarian army is routed. The Italians enter Trent
Trent
-Places:* Trento in northern Italy, site of the Council of Trent* Trent, Dorset, England, United Kingdom* Trent, Germany, a municipality on the island of Rügen* Trent, California, USA* Trent, Kentucky, USA* Trent, South Dakota, USA* Trent, Texas, USA...

 and land at Triest.
Details
Battle of Vittorio Veneto
The Battle of Vittorio Veneto was fought between 24 October and 3 November 1918, near Vittorio Veneto, during the Italian Campaign of World War I...

October 29 Wilhelm Groener
Wilhelm Groener
Karl Eduard Wilhelm Groener was a German soldier and politician.-Biography:He was born in Ludwigsburg in the Kingdom of Württemberg, the son of a regimental paymaster. He entered the Württemberg Army in 1884, and attended the War Academy from 1893 to 1897, whereupon he was appointed to the General...

 replaces Erich Ludendorff
Erich Ludendorff
Erich Friedrich Wilhelm Ludendorff was a German general, victor of Liège and of the Battle of Tannenberg...

 as Hindenburg's deputy.
Details
Wilhelm Groener
Karl Eduard Wilhelm Groener was a German soldier and politician.-Biography:He was born in Ludwigsburg in the Kingdom of Württemberg, the son of a regimental paymaster. He entered the Württemberg Army in 1884, and attended the War Academy from 1893 to 1897, whereupon he was appointed to the General...

October 29 Germany's Hochseeflotte mutinies. Details
Wilhelmshaven mutiny
The Kiel mutiny was a major revolt by sailors of the German High Seas Fleet on 3 November 1918. The revolt triggered the German revolution which was to sweep aside the monarchy within a few days. It ultimately led to the end of the First World War and to the establishment of the Weimar Republic.-...

October 30 The Ottoman Empire signs the Armistice of Mudros. Details
Armistice of Mudros
The Armistice of Moudros , concluded on 30 October 1918, ended the hostilities in the Middle Eastern theatre between the Ottoman Empire and the Allies of World War I...

November 3 Austria-Hungary signs the armistice with Italy, effective November 4.
November 9 Germany: Kaiser William II abdicates; republic proclaimed. Details
November 10 Austria-Hungary: Kaiser Charles I abdicates. Details
Karl I of Austria
Charles I of Austria or Charles IV of Hungary was the last ruler of the Austro-Hungarian Empire. He was the last Emperor of Austria, the last King of Hungary, the last King of Bohemia and Croatia and the last King of Galicia and Lodomeria and the last monarch of the House of Habsburg-Lorraine...

November 11 At 6 am, Germany signs the Armistice of Compiègne. End of fighting at 11 a.m..
November 12 Austria proclaimed a republic.
November 14 Czechoslovakia
Czechoslovakia
Czechoslovakia or Czecho-Slovakia was a sovereign state in Central Europe which existed from October 1918, when it declared its independence from the Austro-Hungarian Empire, until 1992...

 proclaimed a republic.
Details
History of Czechoslovakia
With the collapse of the Habsburg monarchy at the end of World War I, the independent country of Czechoslovakia was formed, encouraged by, among others, U.S. President Woodrow Wilson...

German U-boats interned.
3 days after the armistice, fighting ends in the East African theater when General von Lettow-Vorbeck agrees a cease-fire on hearing of Germany's surrender. Details
Von Lettow-Vorbeck Memorial
The Von Lettow-Vorbeck Memorial in the Northern Province of Zambia commemorates the final cessation of hostilities of World War I, three days after the Armistice in Europe.-The reasons for the Memorial:The Memorial bears a plaque which reads:...

November 21 Germany's Hochseeflotte surrendered to the United Kingdom. Details
High Seas Fleet
The High Seas Fleet was the battle fleet of the German Empire and saw action during World War I. The formation was created in February 1907, when the Home Fleet was renamed as the High Seas Fleet. Admiral Alfred von Tirpitz was the architect of the fleet; he envisioned a force powerful enough to...

November 22 The Germans evacuate Luxembourg
Luxembourg
Luxembourg , officially the Grand Duchy of Luxembourg , is a landlocked country in western Europe, bordered by Belgium, France, and Germany. It has two principal regions: the Oesling in the North as part of the Ardennes massif, and the Gutland in the south...

.
November 23 9 days after agreeing a cease-fire, General von Lettow-Vorbeck formally surrenders his undefeated army at Abercorn in present-day Zambia. Details
Paul Emil von Lettow-Vorbeck
Paul Emil von Lettow-Vorbeck was a general in the Imperial German Army and the commander of the German East Africa campaign. For four years, with a force that never exceeded about 14,000 , he held in check a much larger force of 300,000 British, Belgian, and Portuguese troops...

November 27 The Germans evacuate Belgium
Belgium
Belgium , officially the Kingdom of Belgium, is a federal state in Western Europe. It is a founding member of the European Union and hosts the EU's headquarters, and those of several other major international organisations such as NATO.Belgium is also a member of, or affiliated to, many...

.
December 4 Yugoslav independence proclaimed. Details
Kingdom of Yugoslavia
The Kingdom of Yugoslavia was a state stretching from the Western Balkans to Central Europe which existed during the often-tumultuous interwar era of 1918–1941...


1919

Dates Events
January 18 Treaty of Versailles
Treaty of Versailles
The Treaty of Versailles was one of the peace treaties at the end of World War I. It ended the state of war between Germany and the Allied Powers. It was signed on 28 June 1919, exactly five years after the assassination of Archduke Franz Ferdinand. The other Central Powers on the German side of...

 between the Allies and Germany: the Peace Conference opens in Paris.
Details
Paris Peace Conference, 1919
The Paris Peace Conference was the meeting of the Allied victors following the end of World War I to set the peace terms for the defeated Central Powers following the armistices of 1918. It took place in Paris in 1919 and involved diplomats from more than 32 countries and nationalities...

January 25 Proposal to create the League of Nations
League of Nations
The League of Nations was an intergovernmental organization founded as a result of the Paris Peace Conference that ended the First World War. It was the first permanent international organization whose principal mission was to maintain world peace...

 accepted.
Details
League of Nations
The League of Nations was an intergovernmental organization founded as a result of the Paris Peace Conference that ended the First World War. It was the first permanent international organization whose principal mission was to maintain world peace...

June 21 German High Seas Fleet (53 ships) scuttled in Scapa Flow with nine deaths, the last casualties of the war. Details
High Seas Fleet
The High Seas Fleet was the battle fleet of the German Empire and saw action during World War I. The formation was created in February 1907, when the Home Fleet was renamed as the High Seas Fleet. Admiral Alfred von Tirpitz was the architect of the fleet; he envisioned a force powerful enough to...

June 28 Treaty of Versailles signed. Details
Treaty of Versailles
The Treaty of Versailles was one of the peace treaties at the end of World War I. It ended the state of war between Germany and the Allied Powers. It was signed on 28 June 1919, exactly five years after the assassination of Archduke Franz Ferdinand. The other Central Powers on the German side of...

July 8 Germany ratifies the Treaty of Versailles. Details
Treaty of Versailles
The Treaty of Versailles was one of the peace treaties at the end of World War I. It ended the state of war between Germany and the Allied Powers. It was signed on 28 June 1919, exactly five years after the assassination of Archduke Franz Ferdinand. The other Central Powers on the German side of...

July 21 The United Kingdom ratifies the Treaty of Versailles. Details
Treaty of Versailles
The Treaty of Versailles was one of the peace treaties at the end of World War I. It ended the state of war between Germany and the Allied Powers. It was signed on 28 June 1919, exactly five years after the assassination of Archduke Franz Ferdinand. The other Central Powers on the German side of...


1920

Dates Events
January 10 First meeting of the League of Nations held in London. Official end of World War I. Details
League of Nations
The League of Nations was an intergovernmental organization founded as a result of the Paris Peace Conference that ended the First World War. It was the first permanent international organization whose principal mission was to maintain world peace...

Free City of Danzig
Free City of Danzig
The Free City of Danzig was a semi-autonomous city-state that existed between 1920 and 1939, consisting of the Baltic Sea port of Danzig and surrounding areas....

 established.
Details
Free City of Danzig
The Free City of Danzig was a semi-autonomous city-state that existed between 1920 and 1939, consisting of the Baltic Sea port of Danzig and surrounding areas....

January 21 The Paris Peace Conference
Paris Peace Conference
Paris Peace Conference may refer to:* Paris Peace Conference, 1919, negotiated the treaties ending World War I* Paris Peace Conference, 1946 July 29 to October 15, 1946See also...

 ends.
Details
Paris Peace Conference, 1919
The Paris Peace Conference was the meeting of the Allied victors following the end of World War I to set the peace terms for the defeated Central Powers following the armistices of 1918. It took place in Paris in 1919 and involved diplomats from more than 32 countries and nationalities...

February 10 A plebiscite returns Northern Schleswig to Denmark. Details
Schleswig Plebiscites
The Schleswig Plebiscites were two plebiscites, organized according to section XII, articles 109 to 114 of the Treaty of Versailles of June 28, 1919, in order to determine the future border between Denmark and Germany through the former duchy of Schleswig...

April 19–April 26 Conference of Sanremo, Italy, about League of Nations mandates in former Ottoman territories of the Middle East. Details
San Remo conference
The San Remo Conference was an international meeting of the post-World War I Allied Supreme Council, held in Sanremo, Italy, from 19 to 26 April 1920. It was attended by the four Principal Allied Powers of World War I who were represented by the prime ministers of Britain , France and Italy and...

June 4 Treaty of Trianon
Treaty of Trianon
The Treaty of Trianon was the peace agreement signed in 1920, at the end of World War I, between the Allies of World War I and Hungary . The treaty greatly redefined and reduced Hungary's borders. From its borders before World War I, it lost 72% of its territory, which was reduced from to...

 between the Allies and Hungary.
Details
Treaty of Trianon
The Treaty of Trianon was the peace agreement signed in 1920, at the end of World War I, between the Allies of World War I and Hungary . The treaty greatly redefined and reduced Hungary's borders. From its borders before World War I, it lost 72% of its territory, which was reduced from to...

August 10 Treaty of Sèvres
Treaty of Sèvres
The Treaty of Sèvres was the peace treaty between the Ottoman Empire and Allies at the end of World War I. The Treaty of Versailles was signed with Germany before this treaty to annul the German concessions including the economic rights and enterprises. Also, France, Great Britain and Italy...

 between the Allies and the Ottoman Empire. The treaty is not recognized by the Turkish national movement
Turkish National Movement
The Turkish National Movement encompasses the political and military activities of the Turkish revolutionaries which resulted in the creation and shaping of the Republic of Turkey, as a consequence of the defeat of the Ottoman Empire in World War I....

, which consider the Istanbul government illegitimate.
Details
Treaty of Sèvres
The Treaty of Sèvres was the peace treaty between the Ottoman Empire and Allies at the end of World War I. The Treaty of Versailles was signed with Germany before this treaty to annul the German concessions including the economic rights and enterprises. Also, France, Great Britain and Italy...

September 8 Gabriele D'Annunzio
Gabriele D'Annunzio
Gabriele D'Annunzio or d'Annunzio was an Italian poet, journalist, novelist, and dramatist...

 proclaims in Fiume the Italian Regency of Carnaro
Italian Regency of Carnaro
The Italian Regency of Carnaro was a self-proclaimed state in the city of Fiume led by Gabriele d'Annunzio between 1919 and 1920.-Impresa di Fiume:...

.
Details
Italian Regency of Carnaro
The Italian Regency of Carnaro was a self-proclaimed state in the city of Fiume led by Gabriele d'Annunzio between 1919 and 1920.-Impresa di Fiume:...

November 1 League of Nations headquarters moved to Geneva, Switzerland. Details
League of Nations
The League of Nations was an intergovernmental organization founded as a result of the Paris Peace Conference that ended the First World War. It was the first permanent international organization whose principal mission was to maintain world peace...

November 12 Treaty of Rapallo between Italy and Yugoslavia. Zadar
Zadar
Zadar is a city in Croatia on the Adriatic Sea. It is the centre of Zadar county and the wider northern Dalmatian region. Population of the city is 75,082 citizens...

 is annexed by Italy and the Free State of Fiume
Free State of Fiume
The Free State of Fiume was an independent free state which existed between 1920 and 1924. Its territory of comprised the city of Fiume and rural areas to its north, with a corridor to its west connecting it to Italy.-History:Fiume gained autonomy for the first time in 1719 when it was proclaimed...

 is established.
Details
Treaty of Rapallo, 1920
The Treaty of Rapallo was a treaty between the Kingdom of Italy and the Kingdom of Serbs, Croats and Slovenes , signed to solve the dispute over some territories in the upper Adriatic, in Dalmatia and in the region which became known as the Julian March.The treaty was signed on 12 November 1920 in...

November 15 The League of Nations holds its first general assembly. Details
League of Nations
The League of Nations was an intergovernmental organization founded as a result of the Paris Peace Conference that ended the First World War. It was the first permanent international organization whose principal mission was to maintain world peace...


Post-1920

Dates Events
1921
October 13 Treaty of Kars between Bolshevik Russia and Turkey
Turkey
Turkey , known officially as the Republic of Turkey , is a Eurasian country located in Western Asia and in East Thrace in Southeastern Europe...

.
Details
Treaty of Kars
The Treaty of Kars was a "friendship" treaty signed in Kars on October 13, 1921 and ratified in Yerevan on September 11 1922.Signatories included representatives from the Grand National Assembly of Turkey, which in 1923 would declare the Republic of Turkey, and also from Soviet Armenia, Soviet...

1922
February 6 Washington Naval Treaty
Washington Naval Treaty
The Washington Naval Treaty, also known as the Five-Power Treaty, was an attempt to cap and limit, and "prevent 'further' costly escalation" of the naval arms race that had begun after World War I between various International powers, each of which had significant naval fleets. The treaty was...

, limiting naval tonnage, signed by France, Italy, Japan, the United Kingdom and the United States.
Details
Washington Naval Treaty
The Washington Naval Treaty, also known as the Five-Power Treaty, was an attempt to cap and limit, and "prevent 'further' costly escalation" of the naval arms race that had begun after World War I between various International powers, each of which had significant naval fleets. The treaty was...

April 10–May 19 Genoa Conference
Genoa Conference
The Genoa Conference was held in Genoa, Italy in 1922 from 10 April to 19 May. At this conference, the representatives of 34 countries convened to speak about monetary economics in the wake of World War I...

. Representatives of 34 countries discuss economics in the wake of the Great War.
Details
Genoa Conference
The Genoa Conference was held in Genoa, Italy in 1922 from 10 April to 19 May. At this conference, the representatives of 34 countries convened to speak about monetary economics in the wake of World War I...

April 16 Treaty of Rapallo between Germany and Bolshevik Russia to normalize diplomatic relations. Details
Treaty of Rapallo, 1922
The Treaty of Rapallo was an agreement signed at the Hotel Imperiale in the Italian town of Rapallo on 16 April, 1922 between Germany and Soviet Russia under which each renounced all territorial and financial claims against the other following the Treaty of Brest-Litovsk and World War I.The two...

September 11 Treaty of Kars ratified in Yerevan, Armenia. Details
Treaty of Kars
The Treaty of Kars was a "friendship" treaty signed in Kars on October 13, 1921 and ratified in Yerevan on September 11 1922.Signatories included representatives from the Grand National Assembly of Turkey, which in 1923 would declare the Republic of Turkey, and also from Soviet Armenia, Soviet...

1923
July 24 Treaty of Lausanne
Treaty of Lausanne
The Treaty of Lausanne was a peace treaty signed in Lausanne, Switzerland on 24 July 1923, that settled the Anatolian and East Thracian parts of the partitioning of the Ottoman Empire. The treaty of Lausanne was ratified by the Greek government on 11 February 1924, by the Turkish government on 31...

 between the Allies and Turkey, successor State to the Ottoman Empire. It supersedes the Treaty of Sèvres.
Details
Treaty of Lausanne
The Treaty of Lausanne was a peace treaty signed in Lausanne, Switzerland on 24 July 1923, that settled the Anatolian and East Thracian parts of the partitioning of the Ottoman Empire. The treaty of Lausanne was ratified by the Greek government on 11 February 1924, by the Turkish government on 31...

1924
January 27 Treaty of Rome between Italy and Yugoslavia. Fiume is annexed by Italy and the neighboring town of Sušak
Sušak
Sušak is a part of the city of Rijeka in Croatia, where it composes the eastern part of the city.In 1924, Rijeka belonged to the independent Free State of Fiume, which had been created four years earlier under the Treaty of Rapallo, but in the Treaty of Rome the Kingdom of Serbs, Croats, and...

 is assigned to Yugoslavia.
Details
Treaty of Rome, 1924
The Treaty of Rome of January 27, 1924 was an agreement by which Italy and the Kingdom of Serbs, Croats and Slovenes revoked the parts of the Treaty of Rapallo from 1920, which had created the independent Free State of Fiume...

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