List of wars 1900–1944 - AbsoluteAstronomy.com

1900-1919

**1900-1919**
Start	Finish	Name of Conflict	Belligerents
Start	Finish	Name of Conflict	Victorious party (if applicable)	Defeated party (if applicable)
1900	1900	War of the Golden Stool War of the Golden Stool The War of the Golden Stool, also known as the Yaa Asantewaa War, the Third Ashanti Expedition, the Ashanti Uprising, or variations thereof, was the final war in a series of conflicts between the British Imperial government of the Gold Coast and the Empire of Ashanti, a powerful, semi-autonomous...	United Kingdom	Ashanti Empire
1901	1902	Anglo-Aro War Anglo-Aro War The Anglo-Aro War was a conflict between the Aro Confederacy in present day Eastern Nigeria, and the British Empire. The war began after increasing tension between Aro leaders and British colonialists after years of failed negotiations....	United Kingdom	Aro Confederacy Aro Confederacy The Aro Confederacy was a political union orchestrated by the Igbo subgroup, the Aro people, centered in Arochukwu in present day Southeastern Nigeria. Their influence and presence was across Eastern Nigeria into parts of the Niger Delta and Southern Igala during the 18th and 19th centuries...
1902	1932	Unification of Saudi Arabia Unification of Saudi Arabia The unification of Saudi Arabia was the process by which the various tribes, sheikhdoms, and emirates of most of the Arabian Peninsula were consolidated under the control of the House of Saud, or Al Saud, between 1902 and 1932, when the modern-day Kingdom of Saudi Arabia was proclaimed...	Sultanate of Nejd Saudi Arabia The Kingdom of Saudi Arabia , commonly known in British English as Saudi Arabia and in Arabic as as-Sa‘ūdiyyah , is the largest state in Western Asia by land area, constituting the bulk of the Arabian Peninsula, and the second-largest in the Arab World... Allied Arab clans Ikhwan The Ikhwan was the Islamic religious militia which formed the main military force of the Arabian ruler Ibn Saud and played a key role in establishing him as ruler of most of the Arabian Peninsula, in his new state of Saudi Arabia. The Ikhwan were made up of Bedouin tribes...	Al Rashid Ottoman Empire Kingdom of Hejaz
1903	1904	British expedition to Tibet British expedition to Tibet The British expedition to Tibet during 1903 and 1904 was an invasion of Tibet by British Indian forces, whose mission was to establish diplomatic relations and trade between the British Raj and Tibet...	United Kingdom	Tibet
1904	1907	Herero War Herero and Namaqua Genocide The Herero and Namaqua Genocide is considered to have been the first genocide of the 20th century. It took place between 1904 and 1907 in German South-West Africa , during the scramble for Africa...	German Empire (including German colonial forces German colonial empire The German colonial empire was an overseas domain formed in the late 19th century as part of the German Empire. Short-lived colonial efforts by individual German states had occurred in preceding centuries, but Imperial Germany's colonial efforts began in 1884... )	Herero and Namaqua peoples
1904	1905	Russo-Japanese War Russo-Japanese War The Russo-Japanese War was "the first great war of the 20th century." It grew out of rival imperial ambitions of the Russian Empire and Japanese Empire over Manchuria and Korea...	Empire of Japan	Russian Empire Principality of Montenegro
1905	1905	1905 Russian Revolution	Russian Empire	Revolutionaries
1906	1906	Dutch intervention in Bali	Netherlands	Badung Tabanan Klungkung Klungkung Klungkung is the smallest regency of Bali, Indonesia. It has an area of 315 km2 and population of 169,906 . Its regency seat is Semarapura....
1906	1906	Bambatha Rebellion Bambatha Rebellion The Bambatha Uprising was a Zulu revolt against British rule and taxation in Natal, South Africa, in 1906. The revolt was led by Bambatha kaMancinza The Bambatha Uprising was a Zulu revolt against British rule and taxation in Natal, South Africa, in 1906. The revolt was led by Bambatha kaMancinza...	British Empire	Zulu Zulu The Zulu are the largest South African ethnic group, with an estimated 10–11 million people living mainly in the province of KwaZulu-Natal. Small numbers also live in Zimbabwe, Zambia and Mozambique. Their language, Zulu, is a Bantu language; more specifically, part of the Nguni subgroup. The...
1907	1907	1907 Romanian Peasants' Revolt 1907 Romanian Peasants' Revolt The 1907 Romanian Peasants' Revolt took place in March 1907 in Moldavia and it quickly spread, reaching Wallachia. The main cause was the discontent of the peasants about the inequity of land ownership, which was in the hands of just a few large landowners....	Kingdom of Romania
1908	1908	Dutch intervention in Bali Dutch intervention in Bali (1908) The Dutch intervention in Bali in 1908 marked the final phase of Dutch colonial control over the island of Bali in Indonesia. It was the seventh and last military intervention in Bali, following the Dutch intervention in Bali ....	Netherlands	Karangasem Klungkung Klungkung Klungkung is the smallest regency of Bali, Indonesia. It has an area of 315 km2 and population of 169,906 . Its regency seat is Semarapura.... Gelgel Gelgel Gelgel may refer to:Gelgel, Chad, a city in ChadGelgel, Indonesia, a village on the island of Bali, and a former kingdom...
1908	1909	Persian Civil War	Persia Qajar dynasty The Qajar dynasty was an Iranian royal family of Turkic descent who ruled Persia from 1785 to 1925....
1909	1910	Second Melillan campaign	Spain	Rif Rif The Rif or Riff is a mainly mountainous region of northern Morocco, with some fertile plains, stretching from Cape Spartel and Tangier in the west to Ras Kebdana and the Melwiyya River in the east, and from the Mediterranean Sea in the north to the river of Wergha in the south.It is part of the... fian tribesmen
1909	1911	Wadai War Wadai War The Wadai War occurred from 1909 to 1911 between France and the Ouaddai Kingdom, located in what today would be eastern Chad and central Sudan. The French annexed the kingdom and kept it as part of their empire until 1960....	Early Modern France	Ouaddai Empire
1910	1921	Mexican Revolution Mexican Revolution The Mexican Revolution was a major armed struggle that started in 1910, with an uprising led by Francisco I. Madero against longtime autocrat Porfirio Díaz. The Revolution was characterized by several socialist, liberal, anarchist, populist, and agrarianist movements. Over time the Revolution...	Mexico
1910	1919	Border War (1910–1919) Part of the Mexican Revolution
1911	1912	French conquest of Morocco	Early Modern France	Morocco Morocco Morocco , officially the Kingdom of Morocco , is a country located in North Africa. It has a population of more than 32 million and an area of 710,850 km², and also primarily administers the disputed region of the Western Sahara...
1911	1912	Italo-Turkish War Italo-Turkish War The Italo-Turkish or Turco-Italian War was fought between the Ottoman Empire and the Kingdom of Italy from September 29, 1911 to October 18, 1912.As a result of this conflict, Italy was awarded the Ottoman provinces of Tripolitania, Fezzan, and...	Kingdom of Italy (Napoleonic)	Ottoman Empire
1911	1912	Xinhai Revolution Xinhai Revolution The Xinhai Revolution or Hsinhai Revolution, also known as Revolution of 1911 or the Chinese Revolution, was a revolution that overthrew China's last imperial dynasty, the Qing , and established the Republic of China... 1911 Revolution	Tongmenghui Tongmenghui The Tongmenghui, also known as the Chinese United League, United League, Chinese Revolutionary Alliance, Chinese Alliance and United Allegiance Society, was a secret society and underground resistance movement formed when merging many Chinese revolutionary groups together by Sun Yat-sen, Song...
1912	1913	First Balkan War First Balkan War The First Balkan War, which lasted from October 1912 to May 1913, pitted the Balkan League against the Ottoman Empire. The combined armies of the Balkan states overcame the numerically inferior and strategically disadvantaged Ottoman armies and achieved rapid success...	Kingdom of Bulgaria Kingdom of Greece Kingdom of Serbia Kingdom of Montenegro	Ottoman Empire
1912	1916	Contestado War Contestado War The Contestado War , broadly speaking, was a guerrilla war for land between settlers and landowners, the latter supported by the Brazilian state's police and military forces, that lasted from October 1912 to August 1916....	Brazilian Governists	Rebels
1912	1933	United States occupation of Nicaragua Part of the Banana Wars	United States	Nicaraguan rebels Nicaragua Nicaragua is the largest country in the Central American American isthmus, bordered by Honduras to the north and Costa Rica to the south. The country is situated between 11 and 14 degrees north of the Equator in the Northern Hemisphere, which places it entirely within the tropics. The Pacific Ocean...
1913	1913	Second Balkan War Second Balkan War The Second Balkan War was a conflict which broke out when Bulgaria, dissatisfied with its share of the spoils of the First Balkan War, attacked its former allies, Serbia and Greece, on 29 June 1913. Bulgaria had a prewar agreement about the division of region of Macedonia...	Ottoman Empire Kingdom of Greece Kingdom of Serbia Kingdom of Montenegro Kingdom of Romania	Kingdom of Bulgaria
1914	1918 (Armistice) 1919 (Treaty 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... )	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...	Triple Entente: Kingdom of 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... Kingdom of Serbia Early Modern France Russian Empire (until March 1918) British Empire Kingdom of Italy (Napoleonic) (from April 1915) Canada United States 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... (from 1917) Kingdom of Montenegro Empire of Japan Portuguese Republic Portugal in the Great War Despite its old alliance with Britain started with the Treaty of Windsor in 1386 , Portugal did not initially form part of the system of alliances involved in World War I and thus initially kept its neutrality... (from March 1916) Kingdom of Romania (August 1916-May 1918) Kingdom of Greece (from June 1917) Albania Principality of Albania The Principality of Albania refers to the short-lived monarchy in Albania, headed by William, Prince of Albania and to the state after the First World War, until the abolition of the monarchy in 1925, when Albania was declared a republic.-Principality:The Principality was established on February... Brazil (from October 1917) Armenia Democratic Republic of Armenia The Democratic Republic of Armenia was the first modern establishment of an Armenian state... (from May 1918) Czechoslovakia Finland Kingdom of Finland (1918) The Kingdom of Finland was an abortive attempt to establish a monarchy in Finland, following Finland's independence from Russia. Had the German Empire endured, Prince Frederick Charles of Hesse would have been installed as King of Finland.-History:... (from October 1918r) Kingdom of Siam San Marino (from June 1915) (from August 1917)	Central Powers: German Empire (including German colonial forces German colonial empire The German colonial empire was an overseas domain formed in the late 19th century as part of the German Empire. Short-lived colonial efforts by individual German states had occurred in preceding centuries, but Imperial Germany's colonial efforts began in 1884... ) Ottoman Empire Kingdom of Bulgaria
1914	1914	United States occupation of Veracruz Part of the Banana Wars	United States
1914	1915	Maritz Rebellion Maritz Rebellion The Maritz Rebellion or the Boer Revolt or the Five Shilling Rebellion, occurred in South Africa in 1914 at the start of World War I, in which men who supported the recreation of the old Boer republics rose up against the government of the Union of South Africa...	Union of South Africa Union of South Africa The Union of South Africa is the historic predecessor to the present-day Republic of South Africa. It came into being on 31 May 1910 with the unification of the previously separate colonies of the Cape, Natal, Transvaal and the Orange Free State...	"Bitterenders"
1915	1934	United States occupation of Haiti Part of the Banana Wars	United States	Haiti
1915	1917	Senussi Campaign Part of World War I	British Empire	Senussi Senussi The Senussi or Sanussi refers to a Muslim political-religious order in Libya and the Sudan region founded in Mecca in 1837 by the Grand Senussi, Sayyid Muhammad ibn Ali as-Senussi. Senussi was concerned with both the decline of Islamic thought and spirituality and the weakening of Muslim political... Ottoman Empire Darfur Emirate Darfur Darfur is a region in western Sudan. An independent sultanate for several hundred years, it was incorporated into Sudan by Anglo-Egyptian forces in 1916. The region is divided into three federal states: West Darfur, South Darfur, and North Darfur...
1916	1917	Kaocen Revolt Kaocen Revolt The Kaocen Revolt was a Tuareg rebellion against French colonial rule of the area around the Aïr Mountains of northern Niger during 1916-17.-1916 rising:Ag Mohammed Wau Teguidda Kaocen was the Tuareg leader of the rising against the French...	Early Modern France	Tuareg guerrillas
1916	1916	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...	British Army British Army The British Army is the land warfare branch of Her Majesty's Armed Forces in the United Kingdom. It came into being with the unification of the Kingdom of England and Scotland into the Kingdom of Great Britain in 1707. The new British Army incorporated Regiments that had already existed in England... Dublin Metropolitan Police Dublin Metropolitan Police The Dublin Metropolitan Police was the police force of Dublin, Ireland, from 1836 to 1925, when it amalgamated into the new Garda Síochána.-19th century:... Royal Irish Constabulary Royal Irish Constabulary The armed Royal Irish Constabulary was Ireland's major police force for most of the nineteenth and the early twentieth centuries. A separate civic police force, the unarmed Dublin Metropolitan Police controlled the capital, and the cities of Derry and Belfast, originally with their own police...	Irish Republican Brotherhood Irish Republican Brotherhood The Irish Republican Brotherhood was a secret oath-bound fraternal organisation dedicated to the establishment of an "independent democratic republic" in Ireland during the second half of the 19th century and the start of the 20th century... Irish Volunteers Irish Volunteers The Irish Volunteers was a military organisation established in 1913 by Irish nationalists. It was ostensibly formed in response to the formation of the Ulster Volunteers in 1912, and its declared primary aim was "to secure and maintain the rights and liberties common to the whole people of Ireland"... Irish Citizen Army Irish Citizen Army The Irish Citizen Army , or ICA, was a small group of trained trade union volunteers established in Dublin for the defence of worker’s demonstrations from the police. It was formed by James Larkin and Jack White. Other prominent members included James Connolly, Seán O'Casey, Constance Markievicz,... Cumann na mBan Cumann na mBan Cumann na mBan is an Irish republican women's paramilitary organisation formed in Dublin on 2 April 1914 as an auxiliary of the Irish Volunteers... Hibernian Rifles Hibernian Rifles The Hibernian Rifles was a marginal Irish nationalist militia that organised in Ireland in the early years of the 20th Century, having its Dublin Headquarters at 28, North Frederick Street. Its membership was exclusively Roman Catholic.... Fianna Éireann Fianna Éireann The name Fianna Éireann , also written Fianna na hÉireann and Na Fianna Éireann , has been used by various Irish republican youth movements throughout the 20th and 21st centuries...
1916	1924	United States occupation of the Dominican Republic (1916–1924) Part of the Banana Wars		Dominican rebels Dominican Republic The Dominican Republic is a nation on the island of La Hispaniola, part of the Greater Antilles archipelago in the Caribbean region. The western third of the island is occupied by the nation of Haiti, making Hispaniola one of two Caribbean islands that are shared by two countries...
1916	1917	National Protection War National Protection War The National Protection War , also known as the anti-Monarchy War, was a civil war that took place in China between 1915 and 1916. The cause of this war was Yuan Shikai's proclamation of himself as Emperor. Only three years earlier, the last Chinese dynasty, the Qing Dynasty, had been overthrown... Anti-Monarchy War	Republic of China	Empire of China
1916	1918	Arab Revolt 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 :... Part of World War I	Hashemite Hashemite Hashemite is the Latinate version of the , transliteration: Hāšimī, and traditionally refers to those belonging to the Banu Hashim, or "clan of Hashim", a clan within the larger Quraish tribe... Arabs United Kingdom United Kingdom of Great Britain and Ireland The United Kingdom of Great Britain and Ireland was the formal name of the United Kingdom during the period when what is now the Republic of Ireland formed a part of it.... Sultanate of Nejd (Unification of Saudi Arabia Unification of Saudi Arabia The unification of Saudi Arabia was the process by which the various tribes, sheikhdoms, and emirates of most of the Arabian Peninsula were consolidated under the control of the House of Saud, or Al Saud, between 1902 and 1932, when the modern-day Kingdom of Saudi Arabia was proclaimed... )	Ottoman Empire
1917	1917	February Revolution 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...	Russian revolutionaries	Russian Empire
1917	1917	October Revolution 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...	Bolshevik Bolshevik The Bolsheviks, originally also Bolshevists , derived from bol'shinstvo, "majority") were a faction of the Marxist Russian Social Democratic Labour Party which split apart from the Menshevik faction at the Second Party Congress in 1903.... s	Russian Provisional Government Russian Provisional Government The Russian Provisional Government was the short-lived administrative body which sought to govern Russia immediately following the abdication of Tsar Nicholas II . On September 14, the State Duma of the Russian Empire was officially dissolved by the newly created Directorate, and the country was...
1917	1923	Russian Civil War Russian Civil War The Russian Civil War was a multi-party war that occurred within the former Russian Empire after the Russian provisional government collapsed to the Soviets, under the domination of the Bolshevik party. Soviet forces first assumed power in Petrograd The Russian Civil War (1917–1923) was a...	Communist Forces: Russian Soviet Federative Socialist Republic Ukrainian SSR Revolutionary Insurrectionary Army of Ukraine Revolutionary Insurrectionary Army of Ukraine The Revolutionary Insurrectionary Army of Ukraine , popularly called Makhnovshchina, less correctly Makhnovchina, and also known as the Black Army, was an anarchist army formed largely of Ukrainian and Crimean peasants and workers under the command of the famous anarchist Nestor Makhno during the...	White Movement White movement The White movement and its military arm the White Army - known as the White Guard or the Whites - was a loose confederation of Anti-Communist forces.The movement comprised one of the politico-military Russian forces who fought... Central Powers (until 1918): German Empire (including German colonial forces German colonial empire The German colonial empire was an overseas domain formed in the late 19th century as part of the German Empire. Short-lived colonial efforts by individual German states had occurred in preceding centuries, but Imperial Germany's colonial efforts began in 1884... ) Ottoman Empire Allied Forces (from 1918): Czechoslovakia Czechoslovak Republic (1918–1938) The First Czechoslovak Republic , refers to the first Czechoslovak state that existed from 1918 to 1938. The state was commonly called Czechoslovakia . It was composed of Bohemia, Moravia, Czech Silesia, Slovakia and Subcarpathian Ruthenia... Estonia Finland Kingdom of Finland (1918) The Kingdom of Finland was an abortive attempt to establish a monarchy in Finland, following Finland's independence from Russia. Had the German Empire endured, Prince Frederick Charles of Hesse would have been installed as King of Finland.-History:... France French Third Republic The French Third Republic was the republican government of France from 1870, when the Second French Empire collapsed due to the French defeat in the Franco-Prussian War, to 1940, when France was overrun by Nazi Germany during World War II, resulting in the German and Italian occupations of France... Kingdom of Greece Kingdom of Italy (Napoleonic) Empire of Japan Latvia Lithuania Poland Second Polish Republic The Second Polish Republic, Second Commonwealth of Poland or interwar Poland refers to Poland between the two world wars; a period in Polish history in which Poland was restored as an independent state. Officially known as the Republic of Poland or the Commonwealth of Poland , the Polish state was... Kingdom of Romania Kingdom of Serbia United Kingdom of Great Britain and Ireland Australia Canada United States
1917	1918	Soviet-Turkish War (1917-1918) Part of Russian Civil War	Ottoman Empire	Russian Soviet Federative Socialist Republic
1917	1921	Ukrainian War of Independence Ukrainian War of Independence The Ukrainian War of Independence was a series of military conflicts between Ukrainian, Anarchist, Bolshevik, the Central Powers forces of Germany and Austria-Hungary, the White Russian Volunteer Army, and Second Polish Republic forces for control of the territory of modern Ukraine after the... Part of World War I and Russian Civil War	Ukrainian SSR Russian Soviet Federative Socialist Republic	Ukrainian People's Republic Ukrainian People's Republic The Ukrainian People's Republic or Ukrainian National Republic was a republic that was declared in part of the territory of modern Ukraine after the Russian Revolution, eventually headed by Symon Petliura.-Revolutionary Wave:... West Ukrainian People's Republic White Movement White movement The White movement and its military arm the White Army - known as the White Guard or the Whites - was a loose confederation of Anti-Communist forces.The movement comprised one of the politico-military Russian forces who fought...
1918	1918	Finnish Civil War Finnish Civil War The Finnish Civil War was a part of the national, political and social turmoil caused by World War I in Europe. The Civil War concerned control and leadership of The Grand Duchy of Finland as it achieved independence from Russia after the October Revolution in Petrograd... Part of World War I and Russian Civil War	Finnish White Guards White Guard (Finland) The White Guard was a voluntary militia that emerged victorious over the socialist Red Guard as part of the Whites in the Finnish Civil War of 1918... German Empire	Finnish Communists Red Guards (Finland) The Red Guards formed the army of Red Finland during the Finnish Civil War in 1918. The combined strength of the Red Guard was about 30,000 at the beginning of the Civil War, and peaked at 90,000-120,000 during the course of the conflict.... Russian Soviet Federative Socialist Republic
1918	1918	Georgian–Armenian War	Democratic Republic of Georgia Democratic Republic of Georgia The Democratic Republic of Georgia , 1918–1921, was the first modern establishment of a Republic of Georgia.The DRG was created after the collapse of the Russian Empire that began with the Russian Revolution of 1917...	Democratic Republic of Armenia Democratic Republic of Armenia The Democratic Republic of Armenia was the first modern establishment of an Armenian state...
1918	1919	German Revolution of 1918–1919	German Empire Weimar Republic	Communist Forces: Bavarian Soviet Republic Bavarian Soviet Republic The Bavarian Soviet Republic, also known as the Munich Soviet Republic was, as part of the German Revolution of 1918–1919, the short-lived attempt to establish a socialist state in form of a council republic in the Free State of Bavaria. It sought independence from the also recently proclaimed... Spartacus League German Communist movements
1918	1919	Greater Poland Uprising (1918–1919) Greater Poland Uprising (1918–1919) The Greater Poland Uprising of 1918–1919, or Wielkopolska Uprising of 1918–1919 or Posnanian War was a military insurrection of Poles in the Greater Poland region against Germany...	Poland Second Polish Republic The Second Polish Republic, Second Commonwealth of Poland or interwar Poland refers to Poland between the two world wars; a period in Polish history in which Poland was restored as an independent state. Officially known as the Republic of Poland or the Commonwealth of Poland , the Polish state was...	German Empire
1918	1919	Polish–Ukrainian War part of the Ukrainian War of Independence	Poland Second Polish Republic The Second Polish Republic, Second Commonwealth of Poland or interwar Poland refers to Poland between the two world wars; a period in Polish history in which Poland was restored as an independent state. Officially known as the Republic of Poland or the Commonwealth of Poland , the Polish state was...	West Ukrainian People's Republic
1918	1920	Georgian–Ossetian conflict (1918–1920)	Transcaucasian Democratic Federative Republic Transcaucasian Democratic Federative Republic The Transcaucasian Democratic Federative Republic , was a short-lived state composed of the modern-day countries of Armenia, Azerbaijan, and Georgia in the South Caucasus.-... Democratic Republic of Georgia Democratic Republic of Georgia The Democratic Republic of Georgia , 1918–1921, was the first modern establishment of a Republic of Georgia.The DRG was created after the collapse of the Russian Empire that began with the Russian Revolution of 1917...	Pro-Bolshevik Bolshevik The Bolsheviks, originally also Bolshevists , derived from bol'shinstvo, "majority") were a faction of the Marxist Russian Social Democratic Labour Party which split apart from the Menshevik faction at the Second Party Congress in 1903.... Ossetian rebels
1918	1920	Armenian–Azerbaijani War Part of the Russian Civil War	Ottoman Empire (1918 only) Russian Soviet Federative Socialist Republic (from April 1920) Turkish Revolutionaries (from April 1920)	Republic of Mountainous Armenia Republic of Mountainous Armenia The Republic of Mountainous Armenia was a short-lived and unrecognized state in the South Caucasus, roughly corresponding with the territory that is now the present-day Armenian provinces of Vayots Dzor and Syunik, and parts of the present-day Nagorno-Karabakh Republic.- Turkish–Armenian War :On... Nagorno-Karabakh rebels Nagorno-Karabakh Nagorno-Karabakh is a landlocked region in the South Caucasus, lying between Lower Karabakh and Zangezur and covering the southeastern range of the Lesser Caucasus mountains... British Empire (1918 only) Centrocaspian Dictatorship Centrocaspian Dictatorship The Central-Caspian Dictatorship , or the Centro-Caspian Dictatorship, was a short-lived anti-Soviet client state proclaimed in Baku, the capital of present-day Azerbaijan, during World War I... (1918 only)
1918	1920	Estonian War of Independence Part of the Russian Civil War	Estonia White Russia Latvia United Kingdom Ingria Ober Ost Ober Ost Ober Ost is short for Oberbefehlshaber der gesamten Deutschen Streitkräfte im Osten, which is a German term meaning "Supreme Commander of All German Forces in the East" during World War I. In practice it refers not only to said commander, but also to his governing military staff and the district... Finnish, Swedish and Danish volunteers	Russian Soviet Federative Socialist Republic Estonian Commune Commune of the Working People of Estonia The Commune of the Working People of Estonia was an unrecognised government claiming the Bolshevik-occupied parts of Republic of Estonia as its territories during the Estonian War of Independence and the Russian Civil War...
1918	1920	Latvian War of Independence Part of the Russian Civil War	Latvia Estonia Poland Second Polish Republic The Second Polish Republic, Second Commonwealth of Poland or interwar Poland refers to Poland between the two world wars; a period in Polish history in which Poland was restored as an independent state. Officially known as the Republic of Poland or the Commonwealth of Poland , the Polish state was... United Kingdom France French Third Republic The French Third Republic was the republican government of France from 1870, when the Second French Empire collapsed due to the French defeat in the Franco-Prussian War, to 1940, when France was overrun by Nazi Germany during World War II, resulting in the German and Italian occupations of France...	Russian Soviet Federative Socialist Republic
1918	1919	Lithuanian–Soviet War Lithuanian–Soviet War The Lithuanian–Soviet War or Lithuanian–Bolshevik War was fought between newly independent Lithuania and the Russian Soviet Federated Socialist Republic in the aftermath of World War I. It was part of the larger Soviet westward offensive of 1918–1919... Part of the Lithuanian Wars of Independence	Lithuania	Russian Soviet Federative Socialist Republic Russian Soviet Federative Socialist Republic The Russian Soviet Federative Socialist Republic , commonly referred to as Soviet Russia, Bolshevik Russia, or simply Russia, was the largest, most populous and economically developed republic in the former Soviet Union.... Lithuanian-Belorussian Soviet Socialist Republic

1919-1929

**1919-1929**
Start	Finish	Name of Conflict	Belligerents
Start	Finish	Name of Conflict	Victorious party (if applicable)	Defeated party (if applicable)
1919	1919	Lithuanian War of Independence (War against the Bermontians) Part of the Lithuanian Wars of Independence	Lithuania	West Russian Volunteer Army West Russian Volunteer Army The West Russian Volunteer Army or Bermontians was an army in the Baltic provinces of the former Russian Empire during the Russian Civil War of 1918-1920....
1919	1919	Polish–Czechoslovak War Polish–Czechoslovak War The Poland–Czechoslovakia war, also known mostly in Czech sources as the Seven-day war was a military confrontation between Czechoslovakia and Poland over the territory of Cieszyn Silesia in 1919....	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...	Second Polish Republic Second Polish Republic The Second Polish Republic, Second Commonwealth of Poland or interwar Poland refers to Poland between the two world wars; a period in Polish history in which Poland was restored as an independent state. Officially known as the Republic of Poland or the Commonwealth of Poland , the Polish state was...
1919	1919	Hungarian–Romanian War of 1919 Hungarian–Romanian War of 1919 The seeds of the Hungarian–Romanian war of 1919 were planted when the union of Transylvania with Romania was proclaimed, on December 1, 1918. In late March 1919, the Bolsheviks came to power in Hungary, at which point its army attempted to retake Transylvania, commencing the war. By its final...	Kingdom of Romania	Hungarian Soviet Republic Hungarian Soviet Republic The Hungarian Soviet Republic or Soviet Republic of Hungary was a short-lived Communist state established in Hungary in the aftermath of World War I....
1919	1923	Turkish War of Independence Turkish War of Independence The Turkish War of Independence was a war of independence waged by Turkish nationalists against the Allies, after the country was partitioned by the Allies following the Ottoman Empire's defeat in World War I...	Turkish Nationalists 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....	Occupation Forces: British Empire Kingdom of Greece France French Third Republic The French Third Republic was the republican government of France from 1870, when the Second French Empire collapsed due to the French defeat in the Franco-Prussian War, to 1940, when France was overrun by Nazi Germany during World War II, resulting in the German and Italian occupations of France... Kingdom of Italy (Napoleonic) Democratic Republic of Armenia Democratic Republic of Armenia The Democratic Republic of Armenia was the first modern establishment of an Armenian state... Democratic Republic of Georgia Democratic Republic of Georgia The Democratic Republic of Georgia , 1918–1921, was the first modern establishment of a Republic of Georgia.The DRG was created after the collapse of the Russian Empire that began with the Russian Revolution of 1917... Ottoman Empire
1919	1919	Third Anglo-Afghan War Third Anglo-Afghan War The Third Anglo-Afghan War began on 6 May 1919 and ended with an armistice on 8 August 1919. It was a minor tactical victory for the British. For the British, the Durand Line was reaffirmed as the political boundary between the Emirate of Afghanistan and British India and the Afghans agreed not to...	Afghanistan	British Empire British Raj
1919	1919	Portuguese Monarchist Civil War	Portuguese Republican Party Portuguese Republican Party The Portuguese Republican Party was a Portuguese political party formed during the late years of monarchy that proposed and conducted the substitution of the Constitutional Monarchy by the Portuguese First Republic....	Kingdom of Portugal Kingdom of Portugal The Kingdom of Portugal was Portugal's general designation under the monarchy. The kingdom was located in the west of the Iberian Peninsula, Europe and existed from 1139 to 1910...
1919	1920	Italo-Yugoslav War	Kingdom of Italy (Napoleonic) 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...	Kingdom of Yugoslavia
1919	1921	Polish–Soviet War Part of the Russian Civil War	Republic of Poland Second Polish Republic The Second Polish Republic, Second Commonwealth of Poland or interwar Poland refers to Poland between the two world wars; a period in Polish history in which Poland was restored as an independent state. Officially known as the Republic of Poland or the Commonwealth of Poland , the Polish state was... Ukrainian People's Republic Ukrainian People's Republic The Ukrainian People's Republic or Ukrainian National Republic was a republic that was declared in part of the territory of modern Ukraine after the Russian Revolution, eventually headed by Symon Petliura.-Revolutionary Wave:...	Russian Soviet Federative Socialist Republic Ukrainian SSR
1919	1919	First Silesian Uprising Part of the Silesian Uprisings	Weimar Republic	Silesian Silesians Silesians , are the inhabitants of Silesia in Poland, Germany and the Czech Republic. A small diaspora community also exists in Karnes County, Texas in the USA.... Rebels
1919	1921	Franco-Syrian War Franco-Syrian War The Franco-Syrian War was a war from 1919 to 1921 between Syria and France. France conquered Syria; King Faisal, who was declared king of Greater Syria, was exiled to the United Kingdom...	France French Third Republic The French Third Republic was the republican government of France from 1870, when the Second French Empire collapsed due to the French defeat in the Franco-Prussian War, to 1940, when France was overrun by Nazi Germany during World War II, resulting in the German and Italian occupations of France... French Syria French Mandate of Syria Officially the French Mandate for Syria and the Lebanon was a League of Nations mandate founded after the First World War and the partitioning of the Ottoman Empire...	Syria Syria Syria , officially the Syrian Arab Republic , is a country in Western Asia, bordering Lebanon and the Mediterranean Sea to the West, Turkey to the north, Iraq to the east, Jordan to the south, and Israel to the southwest.... n Rebels
1919	1921	Irish War of Independence Irish War of Independence The Irish War of Independence , Anglo-Irish War, Black and Tan War, or Tan War was a guerrilla war mounted by the Irish Republican Army against the British government and its forces in Ireland. It began in January 1919, following the Irish Republic's declaration of independence. Both sides agreed...	Irish Republic Irish Republic The Irish Republic was a revolutionary state that declared its independence from Great Britain in January 1919. It established a legislature , a government , a court system and a police force...	United Kingdom
1919	1922	Greco-Turkish War (1919–1922)	Turkish Revolutionaries	Kingdom of Greece
1920	1921	Franco-Turkish War Franco-Turkish War The Franco-Turkish War or Cilicia War was a series of conflicts fought between France and Turkish National Forces directed by Turkish Grand National Assembly from May 1920-October 1921 in the aftermath of World War I...	Turkey	Early Modern France French Armenian Legion
1920	1920	Vlora War Vlora War The Vlora War or the War of 1920 was a series of battles between an Italian forces garrisoned throughout Vlorë region and Albanian patriots divided in small groups of fighters. The war lasted three months and had great impact in the struggle of Albania for the safeguard of its territories at a...	Principality of Albania Principality of Albania The Principality of Albania refers to the short-lived monarchy in Albania, headed by William, Prince of Albania and to the state after the First World War, until the abolition of the monarchy in 1925, when Albania was declared a republic.-Principality:The Principality was established on February...	Kingdom of Italy (Napoleonic)
1920	1926	Rif War Rif War The Rif War, also called the Second Moroccan War, was fought between Spain and the Moroccan Rif Berbers.-Rifian forces:...	France French Third Republic The French Third Republic was the republican government of France from 1870, when the Second French Empire collapsed due to the French defeat in the Franco-Prussian War, to 1940, when France was overrun by Nazi Germany during World War II, resulting in the German and Italian occupations of France... Spain Spain under the Restoration The Restoration was the name given to the period that began on December 29, 1874 after the First Spanish Republic ended with the restoration of Alfonso XII to the throne after a coup d'état by Martinez Campos, and ended on April 14, 1931 with the proclamation of the Second Spanish Republic.After...	Rif Republic Rif Republic The Republic of the Rif , was created in September 1921, when the people of the Rif revolted and declared their independence from Spanish occupation as well as from the Moroccan sultan.Its capital city was Ajdir, its currency the Rif Republic Riffan, its national...
1920	1920	Polish–Lithuanian War Polish–Lithuanian War The Polish–Lithuanian War was an armed conflict between newly independent Lithuania and Poland in the aftermath of World War I. The conflict primarily concerned territorial control of the Vilnius Region, including Vilnius , and the Suwałki Region, including the towns of Suwałki, Augustów, and Sejny... Part of the Lithuanian Wars of Independence	Poland Second Polish Republic The Second Polish Republic, Second Commonwealth of Poland or interwar Poland refers to Poland between the two world wars; a period in Polish history in which Poland was restored as an independent state. Officially known as the Republic of Poland or the Commonwealth of Poland , the Polish state was...	Lithuania
1920	1920	Second Silesian Uprising Part of the Silesian Uprisings	Weimar Republic	German civil government and police of Upper Silesia Silesians Silesians , are the inhabitants of Silesia in Poland, Germany and the Czech Republic. A small diaspora community also exists in Karnes County, Texas in the USA....
1920	1920	Turkish–Armenian War	Turkish Revolutionaries	Democratic Republic of Armenia Democratic Republic of Armenia The Democratic Republic of Armenia was the first modern establishment of an Armenian state...
1920	1920	Zhili–Anhui War	Zhili clique Fengtian clique Fengtian clique The Fengtian Clique was one of several mutually hostile cliques or factions that split from the Beiyang Clique in the Republic of China's warlord era. It was named for Fengtian Province and led by Zhang Zuolin...	Anhui clique Anhui clique The Anhui clique was one of several mutually hostile cliques or factions that split from the Beiyang Clique in the Republic of China's Warlord era. It was named after Anhui province because several of its generals including its founder, Duan Qirui, was born in Anhui...
1920	1921	Guangdong–Guangxi War	Old Guangxi clique Old Guangxi clique After the founding of the Republic of China, Guangxi served as the base for one of the most powerful warlord cliques of China: the Old Guangxi Clique. Led by Lu Rongting, the clique was able to take control of neighbouring Hunan and Guangdong provinces as well...	Chinese Revolutionary Party Chinese Revolutionary Party The Chinese Revolutionary Party was the short lived renaming of the Kuomintang between 1914 and 1919....
1921	1921	Red Army invasion of Georgia Red Army invasion of Georgia The Red Army invasion of Georgia also known as the Soviet–Georgian War or the Soviet invasion of Georgia was a military campaign by the Soviet Russian Red Army against the Democratic Republic of Georgia aimed at overthrowing the Social-Democratic government and installing the Bolshevik regime... Part of the Russian Civil War	Russian Soviet Federative Socialist Republic Turkish revolutionaries	Democratic Republic of Georgia Democratic Republic of Georgia The Democratic Republic of Georgia , 1918–1921, was the first modern establishment of a Republic of Georgia.The DRG was created after the collapse of the Russian Empire that began with the Russian Revolution of 1917...
1921	1921	Third Silesian Uprising Part of the Silesian Uprisings	Weimar Republic	Silesian Silesians Silesians , are the inhabitants of Silesia in Poland, Germany and the Czech Republic. A small diaspora community also exists in Karnes County, Texas in the USA.... Rebels Poland Second Polish Republic The Second Polish Republic, Second Commonwealth of Poland or interwar Poland refers to Poland between the two world wars; a period in Polish history in which Poland was restored as an independent state. Officially known as the Republic of Poland or the Commonwealth of Poland , the Polish state was...
1921	1922	East Karelian Uprising Part of the Russian Civil War	Russian Soviet Federative Socialist Republic	Finnish and East Karelian rebels
1922	1922	First Zhili–Fengtian War	Zhili clique	Fengtian clique Fengtian clique The Fengtian Clique was one of several mutually hostile cliques or factions that split from the Beiyang Clique in the Republic of China's warlord era. It was named for Fengtian Province and led by Zhang Zuolin...
1922	1923	Irish Civil War Irish Civil War The Irish Civil War was a conflict that accompanied the establishment of the Irish Free State as an entity independent from the United Kingdom within the British Empire....	Pro-treaty forces	Anti-treaty forces
1924	1924	August Uprising	Soviet Union	Committee for Independence of Georgia Committee for Independence of Georgia The Committee for the Independence of Georgia or the Parity Committee was an underground anti-Soviet organization active in the Georgian Soviet Socialist Republic in the early 1920s. It is commonly known as "Damkom"...
1924	1924	Second Saud–Sharif War	Saudi Arabia Saudi Arabia The Kingdom of Saudi Arabia , commonly known in British English as Saudi Arabia and in Arabic as as-Sa‘ūdiyyah , is the largest state in Western Asia by land area, constituting the bulk of the Arabian Peninsula, and the second-largest in the Arab World... British Empire	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...
1924	1924	Second Zhili–Fengtian War	Fengtian clique Fengtian clique The Fengtian Clique was one of several mutually hostile cliques or factions that split from the Beiyang Clique in the Republic of China's warlord era. It was named for Fengtian Province and led by Zhang Zuolin...	Zhili clique
1925	1925	Incident at Petrich Incident at Petrich The incident at Petrich, or the War of the Stray Dog, was the short invasion of Bulgaria by Greece near the border town Petrich in 1925...	Kingdom of Bulgaria	Kingdom of Greece
1926	1928	Northern Expedition	Republic of China	Beiyang Government Beiyang Government The Beiyang government or warlord government collectively refers to a series of military regimes that ruled from Beijing from 1912 to 1928 at Zhongnanhai. It was internationally recognized as the legitimate Government of the Republic of China. The name comes from the Beiyang Army which dominated...
1926	1929	Cristero War Cristero War The Cristero War of 1926 to 1929 was an uprising and counter-revolution against the Mexican government in power at that time. The rebellion was set off by the strict enforcement of the anti-clerical provisions of the Mexican Constitution of 1917 and the expansion of further anti-clerical laws...		Cristeros
1927	1949	Chinese Civil War Chinese Civil War The Chinese Civil War was a civil war fought between the Kuomintang , the governing party of the Republic of China, and the Communist Party of China , for the control of China which eventually led to China's division into two Chinas, Republic of China and People's Republic of...	Communist Party of China Communist Party of China The Communist Party of China , also known as the Chinese Communist Party , is the founding and ruling political party of the People's Republic of China...	Republic of China
1928	1929	Afghan Civil War	Barakzai dynasty Tribal supporters British Empire (from 1929)	Tribal rebels Forces of Habibullah Ghazi Habibullah Ghazi Habībullāh Kalakānī , also known as Habībullāh Ghāzī, was Emir of Afghanistan from January to October 1929 after deposing Amānullāh Khān with the help of various Ghilzai tribes who opposed modernization of Afghanistan...
1929	1929	Sino-Soviet conflict (1929) Sino-Soviet conflict (1929) The Sino–Soviet conflict of 1929 was a minor armed conflict between the Soviet Union and Chinese warlord Zhang Xueliang of the Republic of China over the Manchurian Chinese Eastern Railway....	Soviet Union	Republic of China
1929	1930	Igbo Women's War	Igbo Women of Owerri and Calabar Provinces	Warrant Chiefs British Colonial Forces Colonial Nigeria Colonial Nigeria ran from 1800 till October 1, 1960 when it gained independence. Up until the amalgamation of 1914, the country's constituting parts existed as separate British protectorates.-Abolition of the Slave Trade:...

1930-1944

**1930-1944**
Start	Finish	Name of Conflict	Belligerents
Start	Finish	Name of Conflict	Victorious party (if applicable)	Defeated party (if applicable)
1930	1930	Yen Bai mutiny Yen Bai mutiny The Yên Bái mutiny was an uprising of Vietnamese soldiers in the French colonial army on 10 February 1930 in collaboration with civilian supporters who were members of the Viet Nam Quoc Dan Dang ....	French Indochina	VNQDD Viet Nam Quoc Dan Dang The Việt Nam Quốc Dân Đảng , also known as the Việt Quốc and the Vietnamese Kuomintang, is the Vietnamese Nationalist Party, a revolutionary socialist political party that sought independence from French colonial rule in Vietnam during the early 20th century...
1930	1930	Central Plains War Central Plains War Central Plains War was a civil war within the factionalised Kuomintang that broke out in 1930. It was fought between the forces of Chiang Kai-shek and the coalition of three military commanders who had previously allied with Chiang: Yan Xishan, Feng Yuxiang, and Li Zongren... Part of Chinese Civil War	Forces of Chiang Kai-shek Chiang Kai-shek Chiang Kai-shek was a political and military leader of 20th century China. He is known as Jiǎng Jièshí or Jiǎng Zhōngzhèng in Mandarin....	Forces of the coalition of Yan Xishan Yan Xishan Yan Xishan, was a Chinese warlord who served in the government of the Republic of China. Yan effectively controlled the province of Shanxi from the 1911 Xinhai Revolution to the 1949 Communist victory in the Chinese Civil War... , Feng Yuxiang Feng Yuxiang Feng Yuxiang was a warlord and leader in Republican China. He was also known as the Christian General for his zeal to convert his troops and the Betrayal General for his penchant to break with the establishment. In 1911, he was an officer in the ranks of Yuan Shikai's Beiyang Army but joined... , Wang Jingwei Wang Jingwei Wang Jingwei , alternate name Wang Zhaoming, was a Chinese politician. He was initially known as a member of the left wing of the Kuomintang , but later became increasingly anti-Communist after his efforts to collaborate with the CCP ended in political failure... , and Li Zongren Li Zongren Li Zongren or Li Tsung-jen , courtesy name Delin , was a prominent Guangxi warlord and Kuomintang military commander during the Northern Expedition, Second Sino-Japanese War and Chinese Civil War...
1930	1932	Sino-Tibetan War Sino-Tibetan War The Sino–Tibetan War occurred in 1930–1932 when the Tibetan army under the 13th Dalai Lama invaded Xikang and Yushu in Qinghai in a dispute over monasteries. The Ma clique warlord Ma Bufang secretly sent a telegram to the Sichuan warlord Liu Wenhui, and the leader of the Republic of China, Chiang...	Republic of China	Tibet
1931	1932	Japanese invasion of Manchuria	Empire of Japan	Republic of China
1931	1934	Kumul Rebellion Kumul Rebellion The Kumul Rebellion was a rebellion of Kumulik Uyghurs who conspired with the Chinese Muslim General Ma Zhongying to overthrow Jin Shuren, governor of Xinjiang. The Kuomintang wanted Jin removed because of his ties to the Soviet Union, so it approved of the operation while pretending to acknowledge...	Republic of China	First East Turkestan Republic
1932	1932	Ecuadorian Civil War	Ecuador
1932	1932	Shanghai War of 1932 January 28 Incident The January 28 Incident was a short war between the armies of the Republic of China and the Empire of Japan, before official hostilities of the Second Sino-Japanese War commenced in 1937.- Naming :...	Republic of China	Empire of Japan
1932	1935	Chaco War Chaco War The Chaco War was fought between Bolivia and Paraguay over control of the northern part of the Gran Chaco region of South America, which was incorrectly thought to be rich in oil. It is also referred to as La Guerra de la Sed in literary circles for being fought in the semi-arid Chaco...	Paraguay	Bolivia
1932	1933	Colombia-Peru War Colombia-Peru War The Colombia–Peru War was an armed conflict between the Republic of Colombia and the Republic of Peru.-Civilian takeover:...	Colombia	Peru
1934	1934	Soviet invasion of Xinjiang Soviet Invasion of Xinjiang The Soviet invasion of Xinjiang was a military campaign in the Chinese northwestern region of Xinjiang in 1934. White Russian forces assisted the Soviet Red Army.- Background :...	Republic of China	Soviet Union White Russian White Russian White Russian may refer to:* White Russian , an alcoholic beverage* White movement members during the Russian Civil War from 1918 to 1923* A White émigré from the Russian Civil War... forces Torgut Mongols
1934	1934	Austrian Civil War Austrian Civil War The Austrian Civil War , also known as the February Uprising , is a term sometimes used for a few days of skirmishes between socialist and conservative-fascist forces between 12 February and 16 February 1934, in Austria...	First Austrian Republic First Austrian Republic The Republic of Austria encompasses the period of Austrian history following the signing of the Treaty of Saint-Germain-en-Laye of September 1919, the settlement after the end of World War I which put an end to the Republic of German Austria, continuing up to World War II... Fatherland's Front	Social Democratic Party of Austria Social Democratic Party of Austria The Social Democratic Party of Austria is one of the oldest political parties in Austria. The SPÖ is one of the two major parties in Austria, and has ties to trade unions and the Austrian Chamber of Labour. The SPÖ is among the few mainstream European social-democratic parties that have preserved...
1934	1934	Saudi-Yemeni War Saudi-Yemeni War - The conflict :Ibn Saud, the founder of Saudi Arabia, had been named King of the Nejd when the British partitioned the Arabian peninsula following the breakup of the Ottoman Empire. Ibn Saud, by war and alliance, won control of much more, and in 1932 proclaimed the merger of the Nejd and Hejaz...	Saudi Arabia Saudi Arabia The Kingdom of Saudi Arabia , commonly known in British English as Saudi Arabia and in Arabic as as-Sa‘ūdiyyah , is the largest state in Western Asia by land area, constituting the bulk of the Arabian Peninsula, and the second-largest in the Arab World...	Yemen Mutawakkilite Kingdom of Yemen The Mutawakkilite Kingdom of Yemen , sometimes spelled Mutawakelite Kingdom of Yemen, also known as the Kingdom of Yemen or as North Yemen, was a country from 1918 to 1962 in the northern part of what is now Yemen...
1935	1936	Second Italo-Abyssinian War Second Italo-Abyssinian War The Second Italo–Abyssinian War was a colonial war that started in October 1935 and ended in May 1936. The war was fought between the armed forces of the Kingdom of Italy and the armed forces of the Ethiopian Empire...	Kingdom of Italy (Napoleonic)	Ethiopian Empire
1936	1939	Great Arab Revolt in Palestine	United Kingdom British Army British Army The British Army is the land warfare branch of Her Majesty's Armed Forces in the United Kingdom. It came into being with the unification of the Kingdom of England and Scotland into the Kingdom of Great Britain in 1707. The new British Army incorporated Regiments that had already existed in England... Palestine Police Force Palestine Police Force The Palestine Police Force was a British colonial police service established in the British Mandate for Palestine on 1 July 1920, when High Commissioner Herbert Samuel's civil administration took over responsibility for security from General Allenby's Occupied Enemy Territory Administration... Jewish Settlement Police Jewish Settlement Police The Jewish Settlement Police were a division of the Notrim established in Mandatory Palestine in 1936, during the Arab Revolt.-History:... Jewish Supernumerary Police Jewish Supernumerary Police The Jewish Supernumerary Police were a branch of the Guards set up by the British in Mandate Palestine in June 1936. Around 22,000 Notrim were appointed, armed and equipped by the British to act as a protective militia for Jewish settlements... Haganah Haganah Haganah was a Jewish paramilitary organization in what was then the British Mandate of Palestine from 1920 to 1948, which later became the core of the Israel Defense Forces.- Origins :... Special Night Squads Special Night Squads The Special Night Squads were a joint British-Jewish counter-insurgency unit, established by Captain Orde Wingate in Palestine in 1938, during the 1936-1939 Arab revolt. The SNS comprised British infantry soldiers and Jewish Supernumerary Police... FOSH Peulot Meyuhadot Peulot Meyuhadot The Peulot Meyuhadot were three highly secret special operations squads set up in Palestine by Yitzhak Sadeh on David Ben Gurion's orders early in 1939, towards the end of the 1936–1939 Arab revolt in Palestine... Irgun Irgun The Irgun , or Irgun Zevai Leumi to give it its full title , was a Zionist paramilitary group that operated in Mandate Palestine between 1931 and 1948. It was an offshoot of the earlier and larger Jewish paramilitary organization haHaganah... Peace Bands	Palestinian Arabs Palestinian people The Palestinian people, also referred to as Palestinians or Palestinian Arabs , are an Arabic-speaking people with origins in Palestine. Despite various wars and exoduses, roughly one third of the world's Palestinian population continues to reside in the area encompassing the West Bank, the Gaza...
1936	1939	Spanish Civil War Spanish Civil War The Spanish Civil WarAlso known as The Crusade among Nationalists, the Fourth Carlist War among Carlists, and The Rebellion or Uprising among Republicans. was a major conflict fought in Spain from 17 July 1936 to 1 April 1939...	National faction National Faction (Spanish Civil War) The National faction also known as Nationalists or Nationals , was a major faction in the Spanish Civil War of 1936 to 1939. It was composed of a variety of political groups opposed to the Second Spanish Republic, including the Falange, the CEDA, and two rival monarchist claimants: the Alfonsists... Falange Falange The Spanish Phalanx of the Assemblies of the National Syndicalist Offensive , known simply as the Falange, is the name assigned to several political movements and parties dating from the 1930s, most particularly the original fascist movement in Spain. The word means phalanx formation in Spanish.... Carlists Carlism Carlism is a traditionalist and legitimist political movement in Spain seeking the establishment of a separate line of the Bourbon family on the Spanish throne. This line descended from Infante Carlos, Count of Molina , and was founded due to dispute over the succession laws and widespread... (1936–1937) CEDA Spanish Confederation of the Autonomous Right The Spanish Confederation of the Autonomous Right was a Spanish political party in the Second Spanish Republic. A Catholic conservative force, it was the political heir to Angel Herrera Oria's Acción Popular and defined itself in terms of the 'affirmation and defence of the principles of Christian... (1936–1937) Alfonsists Alfonsism The term Alfonsism refers to the movement in Spanish monarchism that supported the restoration of Alfonso XIII of Spain as King of Spain after the foundation of the Second Spanish Republic in 1931... (1936–1937) Regulares Regulares The Fuerzas Regulares Indígenas , known simply as the Regulares , were the volunteer infantry and cavalry units of the Spanish Army recruited in Spanish Morocco. They consisted of Moroccans officered by Spaniards... ---- Supported by: (CTV Corpo Truppe Volontarie The Corps of Volunteer Troops was an Italian expeditionary force which was sent to Spain to support General Francisco Franco and the Spanish Nationalist forces during the Spanish Civil War... ) (Condor Legion Condor Legion The Condor Legion was a unit composed of volunteers from the German Air Force and from the German Army which served with the Nationalists during the Spanish Civil War of July 1936 to March 1939. The Condor Legion developed methods of terror bombing which were used widely in the Second World War... ) Portugal (Viriatos Viriatos Viriatos, named after the Lusitanian leader Viriathus, was the generic name given to Portuguese volunteers who fought with the Nationalists in the Spanish Civil War. In the first weeks of the war the Portuguese army tried to form a Viriatos Legion to aid the right-wing insurgents in Spain... ) Foreign volunteers Foreign involvement in the Spanish Civil War The Spanish Civil War had large numbers of non-Spanish citizens participating in combat and advisory positions. Foreign governments contributed varying amounts of financial assistance and military aid to Nationalist forces led by Generalísimo Francisco Franco and those fighting on behalf of the...	Republican faction Republican Faction (Spanish Civil War) The Republican faction also known as the Republicans was the side in the Spanish Civil War of 1936 to 1939 that supported the Second Spanish Republic against the National faction.-Popular Front:-CNT/FAI:-People's Republican Army:... Popular Front Popular Front (Spain) The Popular Front in Spain's Second Republic was an electoral coalition and pact signed in January 1936 by various left-wing political organisations, instigated by Manuel Azaña for the purpose of contesting that year's election.... CNT Confederación Nacional del Trabajo The Confederación Nacional del Trabajo is a Spanish confederation of anarcho-syndicalist labor unions affiliated with the International Workers Association . When working with the latter group it is also known as CNT-AIT... /FAI Federación Anarquista Ibérica The Federación Anarquista Ibérica is a Spanish organization of anarchist militants active within affinity groups inside the Confederación Nacional del Trabajo trade union. It is often abbreviated as CNT-FAI because of the close relationship between the two organizations... UGT Unión General de Trabajadores The Unión General de Trabajadores is a major Spanish trade union, historically affiliated with the Spanish Socialist Workers' Party .-History:... ERC Basque Army Euzko Gudarostea Euzko Gudarostea was the name of the army commanded by the Basque Government during the Spanish civil war. It was formed by Basque nationalists, socialists and communists under the direction of lendakari José Antonio Aguirre and coordinating with the army of the Second Spanish Republic... (1936–1937) Galicianist Party Partido Galeguista (1931) The Partido Galeguista was a Galician nationalist party founded in December 1931. It achieved notoriety during the time of the Spanish Second Republic... ---- Supported by: International Brigades International Brigades The International Brigades were military units made up of volunteers from different countries, who traveled to Spain to defend the Second Spanish Republic in the Spanish Civil War between 1936 and 1939.... (1936–1938)
1937	1937	Islamic rebellion in Xinjiang (1937)	Soviet Union White Russian White Russian White Russian may refer to:* White Russian , an alcoholic beverage* White movement members during the Russian Civil War from 1918 to 1923* A White émigré from the Russian Civil War... forces	Republic of China
1937	1945	Second Sino-Japanese War Second Sino-Japanese War The Second Sino-Japanese War was a military conflict fought primarily between the Republic of China and the Empire of Japan. From 1937 to 1941, China fought Japan with some economic help from Germany , the Soviet Union and the United States... Part of World War II	Republic of China Communist Party of China Communist Party of China The Communist Party of China , also known as the Chinese Communist Party , is the founding and ruling political party of the People's Republic of China... United States (from 1941) British Empire (from 1941)	Empire of Japan Manchukuo
1938	1948	British–Zionist conflict	Jewish Resistance Movement Jewish Resistance Movement The Jewish Resistance Movement , sometimes called United Resistance Movement , was an umbrella group for Jewish Resistance movements in the British Mandate of Palestine... Haganah Haganah Haganah was a Jewish paramilitary organization in what was then the British Mandate of Palestine from 1920 to 1948, which later became the core of the Israel Defense Forces.- Origins :... Irgun Irgun The Irgun , or Irgun Zevai Leumi to give it its full title , was a Zionist paramilitary group that operated in Mandate Palestine between 1931 and 1948. It was an offshoot of the earlier and larger Jewish paramilitary organization haHaganah... Lehi Lehi (group) Lehi , commonly referred to in English as the Stern Group or Stern Gang, was a militant Zionist group founded by Avraham Stern in the British Mandate of Palestine...	United Kingdom British Army British Army The British Army is the land warfare branch of Her Majesty's Armed Forces in the United Kingdom. It came into being with the unification of the Kingdom of England and Scotland into the Kingdom of Great Britain in 1707. The new British Army incorporated Regiments that had already existed in England... United Kingdom 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... United Kingdom 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... Palestine Police Force Palestine Police Force The Palestine Police Force was a British colonial police service established in the British Mandate for Palestine on 1 July 1920, when High Commissioner Herbert Samuel's civil administration took over responsibility for security from General Allenby's Occupied Enemy Territory Administration...
1938	1938	Battle of Lake Khasan Battle of Lake Khasan The Battle of Lake Khasan and also known as the Changkufeng Incident in China and Japan, was an attempted military incursion of Manchukuo into the territory claimed by the Soviet Union...	Soviet Union	Manchukuo Empire of Japan
1939	1939	Hungarian Invasion of the Carpatho-Ukraine		Carpatho-Ukraine Carpatho-Ukraine Carpatho-Ukraine was an autonomous region within Czechoslovakia from late 1938 to March 15, 1939. It declared itself an independent republic on March 15, 1939, but was occupied by Hungary between March 15 and March 18, 1939, remaining under Hungarian control until the Nazi occupation of Hungary in...
1939	1939	Slovak–Hungarian War		Slovak Republic
1939	1939	Italian invasion of Albania Italian invasion of Albania The Italian invasion of Albania was a brief military campaign by the Kingdom of Italy against the Albanian Kingdom. The conflict was a result of the imperialist policies of Italian dictator Benito Mussolini...	Kingdom of Italy (Napoleonic)	Albanian Kingdom Albanian Kingdom The Albanian Kingdom was the constitutional monarchal rule in Albania between 1928 and 1939. During this period Albania was a de facto protectorate of the Kingdom of Italy Albania was declared a monarchy by the Constituent Assembly, and Zog I was crowned king...
1939	1939	Battle of Khalkhin Gol Battle of Khalkhin Gol The Battles of Khalkhyn Gol was the decisive engagement of the undeclared Soviet–Japanese Border Wars fought among the Soviet Union, Mongolia and the Empire of Japan in 1939. The conflict was named after the river Khalkhyn Gol, which passes through the battlefield...	Soviet Union Mongolia	Empire of Japan Manchukuo
1939	1945	World War II World War II World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...	Allied Powers: From 1939 Poland Second Polish Republic The Second Polish Republic, Second Commonwealth of Poland or interwar Poland refers to Poland between the two world wars; a period in Polish history in which Poland was restored as an independent state. Officially known as the Republic of Poland or the Commonwealth of Poland , the Polish state was... France French Third Republic The French Third Republic was the republican government of France from 1870, when the Second French Empire collapsed due to the French defeat in the Franco-Prussian War, to 1940, when France was overrun by Nazi Germany during World War II, resulting in the German and Italian occupations of France... British Empire Union of South Africa Canada Czechoslovakia (government-in-exile Czechoslovak government-in-exile The Czechoslovak government-in-exile was an informal title conferred upon the Czechoslovak National Liberation Committee, initially by British diplomatic recognition. The name came to be used by other World War II Allies as they subsequently recognized it... ) From 1940 Belgium Kingdom of Greece Kingdom of Yugoslavia From 1941 Soviet Union Haiti Honduras Honduras Honduras is a republic in Central America. It was previously known as Spanish Honduras to differentiate it from British Honduras, which became the modern-day state of Belize... United States Republic of China Philippines From 1942 Mexico Brazil Ethiopian Empire From 1943 Kingdom of Iraq Iran Democratic Federal Yugoslavia From 1944 Liberia Peru Kingdom of Italy (Napoleonic) (since 1943. Formerly a member of the Axis) Kingdom of Romania (formerly a member of the Axis) Bulgaria Kingdom of Bulgaria The Kingdom of Bulgaria was established as an independent state when the Principality of Bulgaria, an Ottoman vassal, officially proclaimed itself independent on October 5, 1908 . This move also formalised the annexation of the Ottoman province of Eastern Rumelia, which had been under the control... (formerly a member of the Axis) (formerly a member of the Axis) Albania Albania Albania , officially known as the Republic of Albania , is a country in Southeastern Europe, in the Balkans region. It is bordered by Montenegro to the northwest, Kosovo to the northeast, the Republic of Macedonia to the east and Greece to the south and southeast. It has a coast on the Adriatic Sea... 1945 Only Paraguay Venezuela Egypt Syria Saudi Arabia	Axis Powers: Nazi Germany Kingdom of Italy (Napoleonic) (1940–1943) Hungary (from 1940) Empire of Japan (from 1941) Kingdom of Bulgaria (1940–1944) Independent State of Croatia (from 1941) Kingdom of Romania (1941–1944) Italian Social Republic Italian Social Republic The Italian Social Republic was a puppet state of Nazi Germany led by the "Duce of the Nation" and "Minister of Foreign Affairs" Benito Mussolini and his Republican Fascist Party. The RSI exercised nominal sovereignty in northern Italy but was largely dependent on the Wehrmacht to maintain control... (1943-1945) Non-Axis Co-belligerents: Manchukuo Mengjiang China-Nanjing San Marino (1940-1943) Vichy France Vichy France Vichy France, Vichy Regime, or Vichy Government, are common terms used to describe the government of France that collaborated with the Axis powers from July 1940 to August 1944. This government succeeded the Third Republic and preceded the Provisional Government of the French Republic... (1940-1944) Finland (1941–1944) Kingdom of Iraq (1941 only) Thailand (1942–1945)
1939	1940	Winter War Winter War The Winter War was a military conflict between the Soviet Union and Finland. It began with a Soviet offensive on 30 November 1939 – three months after the start of World War II and the Soviet invasion of Poland – and ended on 13 March 1940 with the Moscow Peace Treaty... Part of World War II	Soviet Union	Finland
1940	1941	Franco-Thai War Part of World War II	Thailand	Vichy France Vichy France Vichy France, Vichy Regime, or Vichy Government, are common terms used to describe the government of France that collaborated with the Axis powers from July 1940 to August 1944. This government succeeded the Third Republic and preceded the Provisional Government of the French Republic... French Indochina
1940	1941	Greco-Italian War Greco-Italian War The Greco-Italian War was a conflict between Italy and Greece which lasted from 28 October 1940 to 23 April 1941. It marked the beginning of the Balkans Campaign of World War II... Part of World War II	Greece	Kingdom of Italy (Napoleonic)
1941	1941	Ecuadorian–Peruvian War	Peru	Ecuador
1941	1941	Anglo-Iraqi War Anglo-Iraqi War The Anglo-Iraqi War was the name of the British campaign against the rebel government of Rashid Ali in the Kingdom of Iraq during the Second World War. The war lasted from 2 May to 31 May 1941. The campaign resulted in the re-occupation of Iraq by British armed forces and the return to power of the... Part of World War II	United Kingdom British Raj Palestine (mandate)	Kingdom of Iraq Nazi Germany Kingdom of Italy (Napoleonic)
1941	1944	Continuation War Continuation War The Continuation War was the second of two wars fought between Finland and the Soviet Union during World War II.At the time of the war, the Finnish side used the name to make clear its perceived relationship to the preceding Winter War... Part of World War II	Soviet Union United Kingdom	Finland Nazi Germany Kingdom of Italy (Napoleonic)
1943	1943	Warsaw Ghetto Uprising Warsaw Ghetto Uprising The Warsaw Ghetto Uprising was the Jewish resistance that arose within the Warsaw Ghetto in German occupied Poland during World War II, and which opposed Nazi Germany's effort to transport the remaining ghetto population to Treblinka extermination camp.... Part of World War II and The Holocaust	Nazi Germany (Waffen-SS Waffen-SS The Waffen-SS was a multi-ethnic and multi-national military force of the Third Reich. It constituted the armed wing of the Schutzstaffel or SS, an organ of the Nazi Party. The Waffen-SS saw action throughout World War II and grew from three regiments to over 38 divisions, and served alongside... , SD Sicherheitsdienst Sicherheitsdienst , full title Sicherheitsdienst des Reichsführers-SS, or SD, was the intelligence agency of the SS and the Nazi Party in Nazi Germany. The organization was the first Nazi Party intelligence organization to be established and was often considered a "sister organization" with the... , OrPo Ordnungspolizei The Ordnungspolizei or Orpo were the uniformed regular police force in Nazi Germany between 1936 and 1945. It was increasingly absorbed into the Nazi police system. Owing to their green uniforms, they were also referred to as Grüne Polizei... , Gestapo Gestapo The Gestapo was the official secret police of Nazi Germany. Beginning on 20 April 1934, it was under the administration of the SS leader Heinrich Himmler in his position as Chief of German Police... , Wehrmacht Wehrmacht The Wehrmacht – from , to defend and , the might/power) were the unified armed forces of Nazi Germany from 1935 to 1945. It consisted of the Heer , the Kriegsmarine and the Luftwaffe .-Origin and use of the term:... ) Collaborators (Latvian police, Jewish police Jewish Ghetto Police Jewish Ghetto Police , also known as the Jewish Police Service and referred to by the Jews as the Jewish Police, were the auxiliary police units organized in the Jewish ghettos of Europe by local Judenrat councils under orders of occupying German Nazis.Members of the did not have official... , Polish police Blue Police The Blue Police, more correctly translated as The Navy-Blue Police was the popular name of the collaborationist police in the German occupied area of the Second Polish Republic, known as General Government during the Second World War... , Lithuanian police Lithuanian Security Police The Lithuanian Security Police, also referred to as Saugumas , was a Lithuanian Nazi collaborationist police force that operated from 1941 to 1944. It had a staff of approximately 400 people, 250 of them in Kaunas and around another 130 in Vilnius.... , Ukrainian volunteers Hiwi (volunteer) Hiwi is a German abbreviation. It has two meanings, "voluntary assistant" and "assistant scientist" .- :... )	Jewish resistance ŻOB Zydowska Organizacja Bojowa The Jewish Combat Organization was a World War II resistance movement, which was instrumental in engineering the Warsaw Ghetto Uprising. ŻOB took part in a number of other resistance activities as well... ŻZW Zydowski Zwiazek Wojskowy Żydowski Związek Wojskowy was an underground resistance organization operating during World War II in the area of the Warsaw Ghetto which fought during the Warsaw Ghetto Uprising... Polish resistance Polish resistance movement in World War II The Polish resistance movement in World War II, with the Home Army at its forefront, was the largest underground resistance in all of Nazi-occupied Europe, covering both German and Soviet zones of occupation. The Polish defence against the Nazi occupation was an important part of the European... AK Armia Krajowa The Armia Krajowa , or Home Army, was the dominant Polish resistance movement in World War II German-occupied Poland. It was formed in February 1942 from the Związek Walki Zbrojnej . Over the next two years, it absorbed most other Polish underground forces... (Home Army) GL Gwardia Ludowa Gwardia Ludowa or GL was a communist armed organisation in Poland, organised by the Soviet created Polish Workers Party. It was the largest military organization which refused to join the structures of the Polish Underground State. It was created in 1942 and in 1944 it was incorporated by the... (People's Guard)
1944	1945	Lapland War Lapland War The Lapland War were the hostilities between Finland and Nazi Germany between September 1944 and April 1945, fought in Finland's northernmost Lapland Province. While the Finns saw this as a separate conflict much like the Continuation War, German forces considered their actions to be part of the... Part of World War II	Finland	Nazi Germany
1944	1953	Guerilla war in the Baltic states Guerilla war in the Baltic states Guerilla war in the Baltic states refers to the armed struggle against Soviet rule that spanned from 1944 to the mid 1950s. After the conquest of the Baltic territories by the Soviets in 1944, an insurgency involving national partisans started...	Soviet Union	The Forest Brothers Forest Brothers The Forest Brothers were Estonian, Latvian, and Lithuanian partisans who waged a guerrilla war against Soviet rule during the Soviet invasion and occupation of the three Baltic states during, and after, World War II...
1944	1949	Ili Rebellion	Communist Party of China Communist Party of China The Communist Party of China , also known as the Chinese Communist Party , is the founding and ruling political party of the People's Republic of China... Second East Turkestan Republic Second East Turkestan Republic The Second East Turkestan Republic, usually known simply as the East Turkestan Republic , was a short-lived Soviet-backed Turkic people's republic which existed in the 1940s in three northern districts of Xinjiang province of the Republic of China, what is now the Xinjiang Uyghur Autonomous... Soviet Union White Russian White Russian White Russian may refer to:* White Russian , an alcoholic beverage* White movement members during the Russian Civil War from 1918 to 1923* A White émigré from the Russian Civil War... forces Mongolian People's Republic	Republic of China National Revolutionary Army National Revolutionary Army The National Revolutionary Army , pre-1928 sometimes shortened to 革命軍 or Revolutionary Army and between 1928-1947 as 國軍 or National Army was the Military Arm of the Kuomintang from 1925 until 1947, as well as the national army of the Republic of China during the KMT's period of party rule...

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