Military history of Romania
Encyclopedia
The military history of Romania deals with conflicts spreading over a period of about 2500 years across the territory of modern 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...

, the Balkan Peninsula and Eastern Europe and the role of the Romanian military in conflicts and peacekeeping worldwide.

During antiquity
Classical antiquity
Classical antiquity is a broad term for a long period of cultural history centered on the Mediterranean Sea, comprising the interlocking civilizations of ancient Greece and ancient Rome, collectively known as the Greco-Roman world...

, the territory of modern Romania was the scene of sporadic wars between the native Dacian tribes and various invaders (Persians, Macedon
Macedon
Macedonia or Macedon was an ancient kingdom, centered in the northeastern part of the Greek peninsula, bordered by Epirus to the west, Paeonia to the north, the region of Thrace to the east and Thessaly to the south....

ians, Celts or Romans
Ancient Rome
Ancient Rome was a thriving civilization that grew on the Italian Peninsula as early as the 8th century BC. Located along the Mediterranean Sea and centered on the city of Rome, it expanded to one of the largest empires in the ancient world....

). Ultimately, the Kingdom of Dacia was conquered by the Roman Empire
Roman Empire
The Roman Empire was the post-Republican period of the ancient Roman civilization, characterised by an autocratic form of government and large territorial holdings in Europe and around the Mediterranean....

 in 106 and large parts of its territory became a Roman province. As the Roman Empire
Roman Empire
The Roman Empire was the post-Republican period of the ancient Roman civilization, characterised by an autocratic form of government and large territorial holdings in Europe and around the Mediterranean....

 declined, Dacia
Roman Dacia
The Roman province of Dacia on the Balkans included the modern Romanian regions of Transylvania, Banat and Oltenia, and temporarily Muntenia and southern Moldova, but not the nearby regions of Moesia...

 was abandoned because of pressure from the Free Dacians
Free Dacians
The "Free Dacians" is the name given by some modern historians to Dacians who putatively remained outside the Roman empire after the emperor Trajan's Dacian wars...

 and Goths
Goths
The Goths were an East Germanic tribe of Scandinavian origin whose two branches, the Visigoths and the Ostrogoths, played an important role in the fall of the Roman Empire and the emergence of Medieval Europe....

.

For 1000 years, numerous migrating peoples including the Goths
Goths
The Goths were an East Germanic tribe of Scandinavian origin whose two branches, the Visigoths and the Ostrogoths, played an important role in the fall of the Roman Empire and the emergence of Medieval Europe....

, Huns
Huns
The Huns were a group of nomadic people who, appearing from east of the Volga River, migrated into Europe c. AD 370 and established the vast Hunnic Empire there. Since de Guignes linked them with the Xiongnu, who had been northern neighbours of China 300 years prior to the emergence of the Huns,...

, Gepids, Avars
Eurasian Avars
The Eurasian Avars or Ancient Avars were a highly organized nomadic confederacy of mixed origins. They were ruled by a khagan, who was surrounded by a tight-knit entourage of nomad warriors, an organization characteristic of Turko-Mongol groups...

, Slavs, Bulgars
Bulgars
The Bulgars were a semi-nomadic who flourished in the Pontic Steppe and the Volga basin in the 7th century.The Bulgars emerge after the collapse of the Hunnic Empire in the 5th century....

, Magyars, Cumans
Cumans
The Cumans were Turkic nomadic people comprising the western branch of the Cuman-Kipchak confederation. After Mongol invasion , they decided to seek asylum in Hungary, and subsequently to Bulgaria...

 and Mongols
Mongols
Mongols ) are a Central-East Asian ethnic group that lives mainly in the countries of Mongolia, China, and Russia. In China, ethnic Mongols can be found mainly in the central north region of China such as Inner Mongolia...

 overran the territory of modern Romania. In the 13th century, a number of small Romanian states emerged and evolved into the medieval principalities of Moldavia
Moldavia
Moldavia is a geographic and historical region and former principality in Eastern Europe, corresponding to the territory between the Eastern Carpathians and the Dniester river...

 and Wallachia
Wallachia
Wallachia or Walachia is a historical and geographical region of Romania. It is situated north of the Danube and south of the Southern Carpathians...

. Transylvania
Transylvania
Transylvania is a historical region in the central part of Romania. Bounded on the east and south by the Carpathian mountain range, historical Transylvania extended in the west to the Apuseni Mountains; however, the term sometimes encompasses not only Transylvania proper, but also the historical...

, conquered by the Magyars, became an autonomous part of 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...

.

During the later Middle Ages
Middle Ages
The Middle Ages is a periodization of European history from the 5th century to the 15th century. The Middle Ages follows the fall of the Western Roman Empire in 476 and precedes the Early Modern Era. It is the middle period of a three-period division of Western history: Classic, Medieval and Modern...

, all three provinces had to deal with the danger posed by the growing power of the Ottoman Turks
Ottoman Turks
The Ottoman Turks were the Turkish-speaking population of the Ottoman Empire who formed the base of the state's military and ruling classes. Reliable information about the early history of Ottoman Turks is scarce, but they take their Turkish name, Osmanlı , from the house of Osman I The Ottoman...

. John Hunyadi
John Hunyadi
John Hunyadi John Hunyadi (Hungarian: Hunyadi János , Medieval Latin: Ioannes Corvinus or Ioannes de Hunyad, Romanian: Iancu (Ioan) de Hunedoara, Croatian: Janko Hunjadi, Serbian: Сибињанин Јанко / Sibinjanin Janko, Slovak: Ján Huňady) John Hunyadi (Hungarian: Hunyadi János , Medieval Latin: ...

, Voivode of Transylvania and regent
Regent
A regent, from the Latin regens "one who reigns", is a person selected to act as head of state because the ruler is a minor, not present, or debilitated. Currently there are only two ruling Regencies in the world, sovereign Liechtenstein and the Malaysian constitutive state of Terengganu...

 of Hungary managed to halt the Turkish advance into Central Europe and secured a major victory at the Battle of Belgrade in 1456. Stephen the Great of Moldavia, Mircea the Elder and Vlad the Impaler of Wallachia also successfully fought off the Turks and distracted them from the strategically more important objectives in the Mediterranean and the Balkans
Balkans
The Balkans is a geopolitical and cultural region of southeastern Europe...

. However, by the middle of the 16th century, the three principalities had become Ottoman vassals. Michael the Brave of Wallachia managed to unite his realm with Transylvania and Moldavia and gain independence for a short time in 1600.

The early modern period was characterised by continuous warfare between the Habsburg Empire, 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...

, Poland
Poland
Poland , officially the Republic of Poland , is a country in Central Europe bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine, Belarus and Lithuania to the east; and the Baltic Sea and Kaliningrad Oblast, a Russian exclave, to the north...

 (until the 18th century) 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...

 for the control of the Danubian principalities
Danubian Principalities
Danubian Principalities was a conventional name given to the Principalities of Moldavia and Wallachia, which emerged in the early 14th century. The term was coined in the Habsburg Monarchy after the Treaty of Küçük Kaynarca in order to designate an area on the lower Danube with a common...

 and Transylvania. The defeat of the Ottomans at the Battle of Vienna
Battle of Vienna
The Battle of Vienna took place on 11 and 12 September 1683 after Vienna had been besieged by the Ottoman Empire for two months...

 in 1683 marked the beginning of their decline in the region.

The 19th century saw the formation of the modern Romanian state through the unification of Moldavia and Wallachia. Independence from the Ottoman Empire was secured after the Russo-Turkish War of 1877–1878 and Romania became a kingdom
Kingdom of Romania
The Kingdom of Romania was the Romanian state based on a form of parliamentary monarchy between 13 March 1881 and 30 December 1947, specified by the first three Constitutions of Romania...

 in 1881. The participation on the Allied (Entente
Allies of World War I
The Entente Powers were the countries at war with the Central Powers during World War I. The members of the Triple Entente were the United Kingdom, France, and the Russian Empire; Italy entered the war on their side in 1915...

) side during World War I triggered the unification of the remaining Romanian inhabited territories with the kingdom, thus forming Greater Romania
Greater Romania
The Greater Romania generally refers to the territory of Romania in the years between the First World War and the Second World War, the largest geographical extent of Romania up to that time and its largest peacetime extent ever ; more precisely, it refers to the territory of the Kingdom of...

.

Romania reached its zenith during the inter-war period. After World War II, it was reduced to its modern borders and fell in the Soviet sphere of influence. The revolution
Romanian Revolution of 1989
The Romanian Revolution of 1989 was a series of riots and clashes in December 1989. These were part of the Revolutions of 1989 that occurred in several Warsaw Pact countries...

 of 1989 ended Communism and the geopolitical mutations in the region after the collapse of the Soviet Union
Soviet Union
The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....

 paved the way for European integration, economically, politically, and militarily. Today, the Romanian army participates in peacekeeping missions with its NATO allies in 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....

, Afghanistan
Afghanistan
Afghanistan , officially the Islamic Republic of Afghanistan, is a landlocked country located in the centre of Asia, forming South Asia, Central Asia and the Middle East. With a population of about 29 million, it has an area of , making it the 42nd most populous and 41st largest nation in the world...

, Bosnia
Bosnia and Herzegovina
Bosnia and Herzegovina , sometimes called Bosnia-Herzegovina or simply Bosnia, is a country in Southern Europe, on the Balkan Peninsula. Bordered by Croatia to the north, west and south, Serbia to the east, and Montenegro to the southeast, Bosnia and Herzegovina is almost landlocked, except for the...

, Kosovo and elsewhere.

The national unity objective

The primary objective of the Romanian leadership in the 19th century and the first half of the 20th century was to join all the territories inhabited by Romanians
Romanians
The Romanians are an ethnic group native to Romania, who speak Romanian; they are the majority inhabitants of Romania....

 in a single state and to maintain its unity. The Romanian strategic thinking was driven by this need especially during the two World Wars. Today, Romania and the Republic of Moldova are comprising most of the regions where Romanians formed the majority of the population before World War II.

Important military rivalries resulted from the clash of Romania's national interests with the interests of neighbouring countries in the past.
  • Romanian-Hungarian rivalry for the control of Transylvania
    Transylvania
    Transylvania is a historical region in the central part of Romania. Bounded on the east and south by the Carpathian mountain range, historical Transylvania extended in the west to the Apuseni Mountains; however, the term sometimes encompasses not only Transylvania proper, but also the historical...

    . It started at the end of World War I when Transylavania was awarded to Romania through the 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...

    . Transylvania had an absolute Romanian majority in 1918, but had been for extensive periods of time under Hungarian rule. In 1940, Northern Transylvania
    Northern Transylvania
    Northern Transylvania is a region of Transylvania, situated within the territory of Romania. The population is largely composed of both ethnic Romanians and Hungarians, and the region has been part of Romania since 1918 . During World War II, as a consequence of the territorial agreement known as...

     was given to Hungary at the Second Vienna Award
    Second Vienna Award
    The Second Vienna Award was the second of two Vienna Awards arbitrated by the Nazi Germany and Fascist Italy. Rendered on August 30, 1940, it re-assigned the territory of Northern Transylvania from Romania to Hungary.-Prelude and historical background :After the World War I, the multi-ethnic...

     only to be ceded back to Romania in 1945. After 1989, relations between the two countries flourished, especially after both Romania and Hungary entered NATO and the European Union. Hungary renounced all territorial claims to Transylvania in a 1995 bilateral treaty.
  • Romanian-Bulgarian rivalry was triggered by the Romanian annexation of Southern Dobruja
    Southern Dobruja
    Southern Dobruja is an area of north-eastern Bulgaria comprising the administrative districts named for its two principal cities of Dobrich and Silistra...

     (Cadrilater). Southern Dobrudja was populated mainly by ethnic Bulgarians and was taken by Romania after the Romanian invasion of Bulgaria during the Second Balkan War. In World War I, Bulgaria regained all of Dobruja, but as a German ally, it was forced to give the territory back to Romania in 1919 through the Treaty of Neuilly
    Treaty of Neuilly
    The Treaty of Neuilly-sur-Seine, dealing with Bulgaria for its role as one of the Central Powers in World War I, was signed on 27 November 1919 at Neuilly-sur-Seine, France....

    . With the advent of World War II, Bulgaria regained the region in the September 1940 Axis-sponsored Treaty of Craiova
    Treaty of Craiova
    The Treaty of Craiova was signed on 7 September 1940 between the Kingdom of Bulgaria and the Kingdom of Romania. Under the terms of this treaty, Romania returned the southern part of Dobruja to Bulgaria and agreed to participate in organizing a population exchange...

    . Since then relations between both countries normalised.
  • Romanian-Russian (Soviet) rivalry erupted because of the Russian occupation of Eastern Moldavia (Bessarabia), a territory with an absolute Romanian majority that had been part of the Principality of Moldavia
    Moldavia
    Moldavia is a geographic and historical region and former principality in Eastern Europe, corresponding to the territory between the Eastern Carpathians and the Dniester river...

    . In the chaos that ensued after the 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...

    , Bessarabia
    Bessarabia
    Bessarabia is a historical term for the geographic region in Eastern Europe bounded by the Dniester River on the east and the Prut River on the west....

     seceded from Russia and joined Romania. The Soviets never accepted the loss and a small border war took place along the Dniestr River in 1920. In 1924, they sponsored a local uprising in Southern Bessarabia (see Tatarbunary Uprising
    Tatarbunary Uprising
    The Tatarbunary Uprising was a Bolshevik-inspired peasant revolt that took place on 15–18 September 1924, in and around the town of Tatarbunary in Budjak , then part of Greater Romania, now part of Odessa Oblast, Ukraine...

    ). In 1940, the Soviet Union occupied Bessarabia and Northern Bukovina in accordance with the Ribbentrop-Molotov Treaty signed the previous year. This prompted Romania to join the Third Reich and contribute extensively with troops and material to Operation Barbarossa
    Operation Barbarossa
    Operation Barbarossa was the code name for Germany's invasion of the Soviet Union during World War II that began on 22 June 1941. Over 4.5 million troops of the Axis powers invaded the USSR along a front., the largest invasion in the history of warfare...

     and the subsequent fighting against the USSR. The Paris Peace Treaty of 1947 reafirmed the 1940 Soviet annexations. Today, most of Bessarabia with some portions of Transnistria
    Transnistria
    Transnistria is a breakaway territory located mostly on a strip of land between the Dniester River and the eastern Moldovan border to Ukraine...

     form the Republic of Moldova, the successor of the Moldavian SSR
    Moldavian SSR
    The Moldavian Soviet Socialist Republic , commonly abbreviated to Moldavian SSR or MSSR, was one of the 15 republics of the Soviet Union...

    , while Northern Bukovina and parts of Bessarabia (Budjak
    Budjak
    Budjak or Budzhak is a historical region in the Odessa Oblast of Ukraine. Lying along the Black Sea between the Danube and Dniester rivers this multiethnic region was the southern part of Bessarabia...

     and Hotin region) are in Ukraine
    Ukraine
    Ukraine is a country in Eastern Europe. It has an area of 603,628 km², making it the second largest contiguous country on the European continent, after Russia...

    .

The regional balance of power

In the modern period, Romania has sought to neutralise the growing power of its neighbours in order to maintain its integrity and independence. During the 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...

, Romania allied itself with 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...

, Greece
Greece
Greece , officially the Hellenic Republic , and historically Hellas or the Republic of Greece in English, is a country in southeastern Europe....

 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...

 in order to check 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...

, which had become too powerful after the complete victory over Turkey in the 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...

. In 1919, the 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....

 allied with Soviet Russia posed a major threat to the stability of the whole region. Romania started an offensive that ended with the conquest of Budapest
Budapest
Budapest is the capital of Hungary. As the largest city of Hungary, it is the country's principal political, cultural, commercial, industrial, and transportation centre. In 2011, Budapest had 1,733,685 inhabitants, down from its 1989 peak of 2,113,645 due to suburbanization. The Budapest Commuter...

 and the overthrow of the Communist government. In the inter-war period, the Little Entente
Little Entente
The Little Entente was an alliance formed in 1920 and 1921 by Czechoslovakia, Romania and Yugoslavia with the purpose of common defense against Hungarian revision and the prevention of a Habsburg restoration...

 functioned as an alliance between Romania, Czechoslovakia and the Kingdom of Serbs, Croats and Slovenes to counter Bulgarian and Hungarian revisionism
Revisionism (Marxism)
Within the Marxist movement, the word revisionism is used to refer to various ideas, principles and theories that are based on a significant revision of fundamental Marxist premises. The term is most often used by those Marxists who believe that such revisions are unwarranted and represent a...

.

Dacians and Romans


The Dacians
Dacians
The Dacians were an Indo-European people, very close or part of the Thracians. Dacians were the ancient inhabitants of Dacia...

 (Lat. Daci, Gr. Dákai), also known as Getae
Getae
The Getae was the name given by the Greeks to several Thracian tribes that occupied the regions south of the Lower Danube, in what is today northern Bulgaria, and north of the Lower Danube, in Romania...

, were part of the greater Thracian family of peoples. They inhabited the territories of present day Romania, Moldova, eastern Hungary, south-western Ukraine and northern Bulgaria.

In (335 BC), Alexander the Great engaged the Thracians in order to secure the northern boundary of the Macedonian kingdom. He crossed the Danube and made a short incursion on the Dacians living north of the river.

Lysimachus
Lysimachus
Lysimachus was a Macedonian officer and diadochus of Alexander the Great, who became a basileus in 306 BC, ruling Thrace, Asia Minor and Macedon.-Early Life & Career:...

, one of the successors of Alexander, who ruled over Thrace, Asia Minor and Macedonia tried to conquer territories north of the Danube, but was defeated and taken prisoner by the Getae (Dacian) king Dromichaetes
Dromichaetes
Dromichaetes was king of the Getae on both sides of the lower Danube around 300 BC.- Background :The Getae had been federated in the Odrysian kingdom in the 5th century BC. It is not known how the relations between Getae and Odrysians developed...

. However, Dromichaetes, set him free on amicable terms.

Burebista
Burebista
Burebista was a king of the Getae and Dacians, who unified for the first time their tribes and ruled them between 82 BC and 44 BC. He led plunder and conquest raids across Central and Southeastern Europe, subjugating most of the neighbouring tribes...

, one of the greatest kings of Dacia ruled between 82 BC and 44 BC and unified the Thracian population from Hercynia (today's Moravia
Moravia
Moravia is a historical region in Central Europe in the east of the Czech Republic, and one of the former Czech lands, together with Bohemia and Silesia. It takes its name from the Morava River which rises in the northwest of the region...

) in the west, to the Southern Bug River
Southern Bug
The Southern Bug, also called Southern Buh), is a river located in Ukraine. The source of the river is in the west of Ukraine, in the Volyn-Podillia Upland, about 145 km from the Polish border, and flows southeasterly into the Bug Estuary through the southern steppes...

 in the east, and from the northern Carpathians to Dionysopolis. Burebista sided with the inhabitants of the Greek cities on the Western coast of the Black Sea when they were occupied by Varro Lucullus, the proconsul of the province of Macedonia during the Second Mithridatic War
Second Mithridatic War
The Second Mithridatic War was one of three wars fought between Pontus and the Roman Republic. The second Mithridatic war was fought between King Mithridates VI of Pontus and the Roman general Lucius Licinius Murena....

 (74 BC–72 BC). The Dacians defeated the Roman army of Gaius Antonius Hybrida near Histria
Histria (Sinoe)
Ancient Histria or Istros , was a Greek colony or polis on the Black Sea coast, established by Milesian settlers to trade with the native Getae. It became the first Greek town on the present day Romanian territory. Scymnus of Chios , the Greek geographer and poet, dated it to 630 BC...

 and continued their incursions in the region, taking the Celtic settlement of Aliobrix (Cartal, Ukraine), Tyras and Odessos and destroying Olbia. In 48 BC, the Dacian king sided with Pompey
Pompey
Gnaeus Pompeius Magnus, also known as Pompey or Pompey the Great , was a military and political leader of the late Roman Republic...

 during his struggle against Julius Caesar
Julius Caesar
Gaius Julius Caesar was a Roman general and statesman and a distinguished writer of Latin prose. He played a critical role in the gradual transformation of the Roman Republic into the Roman Empire....

 in the Roman civil war but failed to supply him with troops in time for the Battle of Pharsalus
Battle of Pharsalus
The Battle of Pharsalus was a decisive battle of Caesar's Civil War. On 9 August 48 BC at Pharsalus in central Greece, Gaius Julius Caesar and his allies formed up opposite the army of the republic under the command of Gnaeus Pompeius Magnus...

.

Dacian Wars

See also: Domitian's Dacian War and Trajan's Dacian Wars

Faced with the growing military presence of the Roman Empire
Roman Empire
The Roman Empire was the post-Republican period of the ancient Roman civilization, characterised by an autocratic form of government and large territorial holdings in Europe and around the Mediterranean....

 in the region, Decebalus
Decebalus
Decebalus or "The Brave" was a king of Dacia and is famous for fighting three wars and negotiating two interregnums of peace without being eliminated against the Roman Empire under two emperors...

 (reigned 87-106), son of king Duras, reorganized the army and in 85 AD the Dacians began minor raiding in the heavily fortified Roman province of Moesia
Moesia
Moesia was an ancient region and later Roman province situated in the Balkans, along the south bank of the Danube River. It included territories of modern-day Southern Serbia , Northern Republic of Macedonia, Northern Bulgaria, Romanian Dobrudja, Southern Moldova, and Budjak .-History:In ancient...

, located south of the Danube. In 86, a more vigorous attack south into Moesia, prompted emperor Domitian
Domitian
Domitian was Roman Emperor from 81 to 96. Domitian was the third and last emperor of the Flavian dynasty.Domitian's youth and early career were largely spent in the shadow of his brother Titus, who gained military renown during the First Jewish-Roman War...

 to intervene with fresh legions and supplies. Domitian planned an attack into Dacia the next year to stop Dacian marauding.
A strong offensive was carried in 87 when five or six legions commanded by general Cornelius Fuscus
Cornelius Fuscus
Cornelius Fuscus was a Roman general who fought campaigns under the Emperors of the Flavian dynasty. During the reign of Domitian, he served as prefect of the imperial bodyguard, known as the Praetorian Guard, from 81 until his death in 86...

 crossed the Danube and continued northwards to the Dacian capital of Sarmizegetusa. They encountered the Dacian army at Tapae
First Battle of Tapae
The first battle of Tapae were fought in 87 between the Roman army and the Dacians. They were a consequence of Roman Emperor Domitian's campaign to protect the Roman province of Moesia, nearly two decades before the regional conquest during the Dacian Wars in Trajan's reign.-Background:In 86, the...

, where the Romans were ambushed, suffering a major defeat. Almost all of the soldiers from Legio V Alaudae
Legio V Alaudae
Legio quinta Alaudae sometimes known as Gallica, was levied by Julius Caesar in 52 BC from native Gauls. Their emblem was an elephant, and their cognomen Alaudae came from the high crest on their helmets, typical of the Gauls, which made them look like larks...

 were killed and the Dacians captured their flags and war machines. Cornelius Fuscus himself was killed in battle. After this victory, Decebalus replaced Duras as king of Dacia.

The Roman offensive continued the following year, with general Tettius Iulianus now in command. The Roman army entered Dacia following the same route as Cornelius Fuscus the previous year. The battle took place mainly in the same area, at Tapae, this time the outcome being a Roman victory. Because of the difficult road to Sarmizegetusa and the defeats suffered by Domitian in Pannonia
Pannonia
Pannonia was an ancient province of the Roman Empire bounded north and east by the Danube, coterminous westward with Noricum and upper Italy, and southward with Dalmatia and upper Moesia....

, the Roman offensive was halted and Decebalus sued for peace.

According to the peace of 89, Decebalus became a client king of Rome receiving money, craftsmen and war machines from the Roman Empire, to defend the empire's borders. Instead of using the money as Rome intended, Decebalus decided to built new citadels in the mountains and to reinforce the already existing ones. This was the main reason for the following Roman attack under emperor Trajan.

In 101 Trajan
Trajan
Trajan , was Roman Emperor from 98 to 117 AD. Born into a non-patrician family in the province of Hispania Baetica, in Spain Trajan rose to prominence during the reign of emperor Domitian. Serving as a legatus legionis in Hispania Tarraconensis, in Spain, in 89 Trajan supported the emperor against...

 (reigned 98-117), after gaining the approval of the Roman Senate
Roman Senate
The Senate of the Roman Republic was a political institution in the ancient Roman Republic, however, it was not an elected body, but one whose members were appointed by the consuls, and later by the censors. After a magistrate served his term in office, it usually was followed with automatic...

, began advancing on Dacia. A stone bridge later known as Trajan's bridge was constructed over the Danube to assist the legionaries' advance. The Roman offensive was spearheaded by two legionary columns, marching right to the heart of Dacia, burning towns and villages in the process. In the winter of 101-102, the Dacians led massive assaults on the legions stantioned in Moesia, but were defeated by Trajan in the Battle of Adamclisi
Battle of Adamclisi
The Battle of Adamclisi was a major battle in the Dacian Wars, fought in the winter of 101 to 102 between the Roman Empire and the Dacians near Adamclisi, in modern Romania.-Background:...

. In 102 the Roman armies converged for a final assault and defeated the Dacian army at the third Battle of Tapae
Second Battle of Tapae
The Battle of Tapae was the decisive battle of the first Dacian War, in which Roman Emperor Trajan defeated the Dacian King Decebalus's army. Other setbacks in the campaign delayed its completion until 102.-Background:...

. After the battle, Decebalus chose to surrender. The war concluded with a Roman victory but the Dacians planned to organize further resistance.

Trajan invaded again in 105, this time with the intention of transforming Dacia into a Roman province
Roman province
In Ancient Rome, a province was the basic, and, until the Tetrarchy , largest territorial and administrative unit of the empire's territorial possessions outside of Italy...

. After several skirmishes, an assault against the capital Sarmisegetusa took place in 106 with the participation of the legions II Adiutrix, IV Flavia Felix and a cavalry detachment (vexillatio) from Legio VI Ferrata. The Romans destroyed the water pipes to the capital and the city fell. Decebalus fled, but committed suicide rather than face capture. Nevertheless, the war went on and the last battle with the Dacian army took place at Porolissum
Porolissum
Porolissum was an ancient Roman city in Dacia. Established as a military camp in 106 during Trajan's Dacian Wars, the city quickly grew through trade with the native Dacians and became the capital of the province Dacia Porolissensis in 124. The site is one of the largest and best-preserved...

.

At the end of the war the Romans organized the province of Dacia on large parts of the former Dacian kingdom. The Roman rule would last from 106 until 271 (or 275 according to some sources).

Roman Dacia

See also: Roman Dacia
Roman Dacia
The Roman province of Dacia on the Balkans included the modern Romanian regions of Transylvania, Banat and Oltenia, and temporarily Muntenia and southern Moldova, but not the nearby regions of Moesia...

 and Daco-Roman

The province of Dacia was administered by a Roman governor of praetorian rank. Legio XIII Gemina (stationed at Apulum
Alba Iulia
Alba Iulia is a city in Alba County, Transylvania, Romania with a population of 66,747, located on the Mureş River. Since the High Middle Ages, the city has been the seat of Transylvania's Roman Catholic diocese. Between 1541 and 1690 it was the capital of the Principality of Transylvania...

, modern Alba Iulia
Alba Iulia
Alba Iulia is a city in Alba County, Transylvania, Romania with a population of 66,747, located on the Mureş River. Since the High Middle Ages, the city has been the seat of Transylvania's Roman Catholic diocese. Between 1541 and 1690 it was the capital of the Principality of Transylvania...

), Legio V Macedonica (stationed at Potaissa, modern Turda
Turda
Turda is a city and Municipality in Cluj County, Romania, situated on the Arieş River.- Ancient times :The city was founded by Dacians under the name Patavissa or Potaissa...

) and numerous auxiliaries had their fixed quarters in the province. For protection against the attacks of the Free Dacians (Dacians that lived outside Roman rule), Carpians and other neighbouring tribes, the Romans built forts and delimited the Roman held territory with a limes. Three great military roads were constructed, linking the chief towns of the province.

Dacians were recruited into the Roman Army, and were employed in the construction and guarding of Hadrian's Wall
Hadrian's Wall
Hadrian's Wall was a defensive fortification in Roman Britain. Begun in AD 122, during the rule of emperor Hadrian, it was the first of two fortifications built across Great Britain, the second being the Antonine Wall, lesser known of the two because its physical remains are less evident today.The...

 in Britannia
Britannia
Britannia is an ancient term for Great Britain, and also a female personification of the island. The name is Latin, and derives from the Greek form Prettanike or Brettaniai, which originally designated a collection of islands with individual names, including Albion or Great Britain. However, by the...

, or elsewhere in the Roman Empire. Several Cohors Primae Dacorum ("First cohort of Dacians") and Alae Dacorum fighting in the ranks of legions were stationed in Britannia at Deva
Deva Victrix
Deva Victrix, or simply Deva, was a legionary fortress and town in the Roman province of Britannia. The settlement evolved into Chester, the county town of Cheshire, England...

 (Chester), Vindolanda
Vindolanda
Vindolanda was a Roman auxiliary fort just south of Hadrian's Wall in northern England. Located near the modern village of Bardon Mill, it guarded the Stanegate, the Roman road from the River Tyne to the Solway Firth...

 (on the Stanegate) and Banna (Birdoswald).

In the third century, the attacks on Roman Dacia conducted by the Free Dacians
Free Dacians
The "Free Dacians" is the name given by some modern historians to Dacians who putatively remained outside the Roman empire after the emperor Trajan's Dacian wars...

 and Goths
Goths
The Goths were an East Germanic tribe of Scandinavian origin whose two branches, the Visigoths and the Ostrogoths, played an important role in the fall of the Roman Empire and the emergence of Medieval Europe....

 intensified. Emperor Aurelian
Aurelian
Aurelian , was Roman Emperor from 270 to 275. During his reign, he defeated the Alamanni after a devastating war. He also defeated the Goths, Vandals, Juthungi, Sarmatians, and Carpi. Aurelian restored the Empire's eastern provinces after his conquest of the Palmyrene Empire in 273. The following...

 (270-275), confronted with the secession of Gaul
Gaul
Gaul was a region of Western Europe during the Iron Age and Roman era, encompassing present day France, Luxembourg and Belgium, most of Switzerland, the western part of Northern Italy, as well as the parts of the Netherlands and Germany on the left bank of the Rhine. The Gauls were the speakers of...

 and Hispania
Hispania
Another theory holds that the name derives from Ezpanna, the Basque word for "border" or "edge", thus meaning the farthest area or place. Isidore of Sevilla considered Hispania derived from Hispalis....

 from the empire, the advance of the Sassanids in Asia and the devastations that the Carpians and the Goths had done to Moesia and Illyria, abandoned the province and withdrew the troops and administration, fixing the Roman frontier on the Danube. A new Dacia Aureliana was reorganised south of the Danube, with its capital at Serdica (modern Sofia
Sofia
Sofia is the capital and largest city of Bulgaria and the 12th largest city in the European Union with a population of 1.27 million people. It is located in western Bulgaria, at the foot of Mount Vitosha and approximately at the centre of the Balkan Peninsula.Prehistoric settlements were excavated...

).
At the beginning of the next century, Romans had tried to retake control of the north of the Danube: in Constantine the Great's campaign from 332 100000 goths were killed in battles on north of the Danube. For a very short time, near 328, there were plans regain administration of the north of the Danube, a stone bridge was erected between Sucidava and Oescus. Still after 334AD Constantine the Great campaign, 300.000 Sarmatians were evacuated from the north of the Danube, and the romans limes were once again reestablished on Danube

Dark ages

During the Dark Ages, the Northern Balkan Peninsula became a conduit for invading tribes who targeted richer lands further west and south. Information about the military operations conducted in this period is very scarce.

The territory of modern Romania was part of the Hun Empire, but after its disintegration different parts were under successive control of the Gepids, Avars
Eurasian Avars
The Eurasian Avars or Ancient Avars were a highly organized nomadic confederacy of mixed origins. They were ruled by a khagan, who was surrounded by a tight-knit entourage of nomad warriors, an organization characteristic of Turko-Mongol groups...

, Slavs, Bulgars
Bulgars
The Bulgars were a semi-nomadic who flourished in the Pontic Steppe and the Volga basin in the 7th century.The Bulgars emerge after the collapse of the Hunnic Empire in the 5th century....

 and Pechenegs. Most of these invaders did not permanently occupy the territory, as their organization was of typical nomadic confederacies. From them, only the Slavs settled in large numbers beginning with the 7th century.

The Byzantine Empire
Byzantine Empire
The Byzantine Empire was the Eastern Roman Empire during the periods of Late Antiquity and the Middle Ages, centred on the capital of Constantinople. Known simply as the Roman Empire or Romania to its inhabitants and neighbours, the Empire was the direct continuation of the Ancient Roman State...

 held the region between the Danube and the Black Sea (modern Dobruja
Dobruja
Dobruja is a historical region shared by Bulgaria and Romania, located between the lower Danube river and the Black Sea, including the Danube Delta, Romanian coast and the northernmost part of the Bulgarian coast...

) from time to time (such as during Justinian's reign in the 6th century) or again under some emperors of the Macedonian and Komnenian dynasties, being part of the Byzantine Paristrion thema (province) between in the period 971-976 and between 1001 and 1185, although it was a border that was hard to maintain due to the constant invasions from the north. Dobrudja was part of the Bulgarian Empire
Bulgarian Empire
Bulgarian Empire is a term used to describe two periods in the medieval history of Bulgaria, during which it acted as a key regional power in Europe in general and in Southeastern Europe in particular, rivalling Byzantium...

 during its whole period of existence. The area around the Danube Delta
Danube Delta
The Danube Delta is the second largest river delta in Europe, after the Volga Delta, and is the best preserved on the continent. The greater part of the Danube Delta lies in Romania , while its northern part, on the left bank of the Chilia arm, is situated in Ukraine . The approximate surface is...

 was the site of battle of Ongal
Battle of Ongal
The Battle of Ongal took place in the summer of 680 in the Ongal area, an unspecified location in around the Danube delta near the Peuce Island...

 in 680 which led to the formation of 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...

 in 681. Since the formation of the country the Bulgarians controlled the Wallachian Plain and Bessarabia
Bessarabia
Bessarabia is a historical term for the geographic region in Eastern Europe bounded by the Dniester River on the east and the Prut River on the west....

 to the north of the Danube, bordering the Avars to the north-west. The Bulgarians under Khan Krum destroyed the crumbling Avar Khanate in 803 and moved the border along the river Tisza
Tisza
The Tisza or Tisa is one of the main rivers of Central Europe. It rises in Ukraine, and is formed near Rakhiv by the junction of headwaters White Tisa, whose source is in the Chornohora mountains and Black Tisa, which springs in the Gorgany range...

, thus including Transylvania and parts of Pannonia
Pannonia
Pannonia was an ancient province of the Roman Empire bounded north and east by the Danube, coterminous westward with Noricum and upper Italy, and southward with Dalmatia and upper Moesia....

 in the Bulgarian state. In a military conflict with the Franks between 827-829 the Bulgarians secured their border with the Frankish Empire.

At the end of the 10th century, Dobruja was the theatre of operations between the Kievan Rus army led by Prince Sviatoslav I, the Bulgarian army and the Byzantine army led by emperor John Tzimiskes. Sviatoslav controlled large parts of the First Bulgarian Empire
First Bulgarian Empire
The First Bulgarian Empire was a medieval Bulgarian state founded in the north-eastern Balkans in c. 680 by the Bulgars, uniting with seven South Slavic tribes...

 and established his capital at Pereyaslavets
Pereyaslavets
Pereyaslavets or Preslavets was a trade city located at the mouth of the Danube...

 (near modern Nufaru
Nufaru
Nufăru is a commune in Tulcea County, Romania, thought to be the short-lived ancient capital of Kievan Rus, Pereyaslavets, and called Prislav until 1968. It is composed of four villages: Ilganii de Jos, Malcoci, Nufăru and Victoria ....

) on the Danube. The Byzantines, led by John Tzimiskes were on the offensive after they defeated the united Russo-Bulgarian forces in the Battle of Arcadiopolis. Pereyaslavets was captured and Sviatoslav was forced to flee westwards to the fortress of Dorostolon (Durostorum). Emperor John proceeded to lay siege to Dorostolon, which resisted for sixty five days until Sviatoslav agreed to sign a peace treaty with the Byzantine Empire, whereby he renounced his claims on Bulgaria and the city of Chersonesos in Crimea
Crimea
Crimea , or the Autonomous Republic of Crimea , is a sub-national unit, an autonomous republic, of Ukraine. It is located on the northern coast of the Black Sea, occupying a peninsula of the same name...

. Sviatoslav was allowed to evacuate his army to Kiev
Kiev
Kiev or Kyiv is the capital and the largest city of Ukraine, located in the north central part of the country on the Dnieper River. The population as of the 2001 census was 2,611,300. However, higher numbers have been cited in the press....

.

The Magyars settled the Pannonian Plain and subdued Transylvania from Bulgaria in the 10th and 11th centuries, while the Cumans
Cumans
The Cumans were Turkic nomadic people comprising the western branch of the Cuman-Kipchak confederation. After Mongol invasion , they decided to seek asylum in Hungary, and subsequently to Bulgaria...

 occupied the Lower Danube region in the 11th century.

Transylvania and the Mongol Invasion of 1241

From the 11th century until 1541 Transylvania
Transylvania
Transylvania is a historical region in the central part of Romania. Bounded on the east and south by the Carpathian mountain range, historical Transylvania extended in the west to the Apuseni Mountains; however, the term sometimes encompasses not only Transylvania proper, but also the historical...

 was an autonomous part of Hungary and was ruled by a Voivode. As it formed the eastern border of Hungary, great emphasis was put on its defenses. By the 12th century the Szeklers were established in eastern Transylvania as border guards, while the Saxons
Saxons
The Saxons were a confederation of Germanic tribes originating on the North German plain. The Saxons earliest known area of settlement is Northern Albingia, an area approximately that of modern Holstein...

 were colonised to guard the southern and northeastern frontier. Early in the 13th century, king Andrew II of Hungary
Andrew II of Hungary
Andrew II the Jerosolimitan was King of Hungary and Croatia . He was the younger son of King Béla III of Hungary, who invested him with the government of the Principality of Halych...

 called on the Teutonic Knights
Teutonic Knights
The Order of Brothers of the German House of Saint Mary in Jerusalem , commonly the Teutonic Order , is a German medieval military order, in modern times a purely religious Catholic order...

 to protect the Burzenland
Burzenland
The Burzenland is a historic and ethnographic area in southeastern Transylvania, Romania with a mixed population...

 from the Cumans
Cumans
The Cumans were Turkic nomadic people comprising the western branch of the Cuman-Kipchak confederation. After Mongol invasion , they decided to seek asylum in Hungary, and subsequently to Bulgaria...

. After the Order began expanding their territory outside Transylvania and acted independently, Andrew expelled it in 1225.

In 1241 Transylvania suffered greatly during the Mongol invasion of Europe
Mongol invasion of Europe
The resumption of the Mongol invasion of Europe, during which the Mongols attacked medieval Rus' principalities and the powers of Poland and Hungary, was marked by the Mongol invasion of Rus starting in 21 December 1237...

. The overall invasion was planned and carried out by Subutai
Subutai
Subutai was the primary military strategist and general of Genghis Khan and Ögedei Khan...

, under the nominal command of Batu Khan
Batu Khan
Batu Khan was a Mongol ruler and founder of the Ulus of Jochi , the sub-khanate of the Mongol Empire. Batu was a son of Jochi and grandson of Genghis Khan. His ulus was the chief state of the Golden Horde , which ruled Rus and the Caucasus for around 250 years, after also destroying the armies...

. The attack on Transylvania was commanded by Güyük Khan
Güyük Khan
Güyük was the third Great Khan of the Mongol Empire. As the eldest son of Ögedei Khan and a grandson of Genghis Khan, he reigned from 1246 to 1248...

, the future great khan of the Mongols.

Güyük invaded Transylvania in three columns through the Tihuţa
Tihuta Pass
Tihuţa Pass is a high mountain pass in the Romanian Bârgău Mountains connecting Bistriţa with Vatra Dornei ....

 and Oituz Passes and the Timiş-Cerna Gap
Timis-Cerna Gap
Timiș-Cerna Gap is a mountain pass in South-Western Romania , dividing the Southern Carpathians and Banat mountain ranges, both part of the Carpathians....

, while Subutai
Subutai
Subutai was the primary military strategist and general of Genghis Khan and Ögedei Khan...

 attacked through the fortified Verecke Pass
Verecke Pass
Verecke Pass or Veretsky Pass is a mountain pass in Ukraine, one of the most important passes of the Inner Eastern Carpathian Mountains....

 towards central Hungary. Güyük sacked Sibiu
Sibiu
Sibiu is a city in Transylvania, Romania with a population of 154,548. Located some 282 km north-west of Bucharest, the city straddles the Cibin River, a tributary of the river Olt...

, Cisnadie
Cisnadie
Cisnădie is a town in Sibiu County, Transylvania, Romania located approximately 10 km from Sibiu. As of 2002, it has a population of about 17,871...

, Alba Iulia
Alba Iulia
Alba Iulia is a city in Alba County, Transylvania, Romania with a population of 66,747, located on the Mureş River. Since the High Middle Ages, the city has been the seat of Transylvania's Roman Catholic diocese. Between 1541 and 1690 it was the capital of the Principality of Transylvania...

, Bistriţa
Bistrita
Bistrița is the capital city of Bistriţa-Năsăud County, Transylvania, Romania. It is situated on the Bistriţa River. The city has a population of approximately 80,000 inhabitants, and it administers six villages: Ghinda, Sărata, Sigmir, Slătiniţa, Unirea and Viişoara.-History:The earliest sign of...

, Cluj-Napoca
Cluj-Napoca
Cluj-Napoca , commonly known as Cluj, is the fourth most populous city in Romania and the seat of Cluj County in the northwestern part of the country. Geographically, it is roughly equidistant from Bucharest , Budapest and Belgrade...

, Oradea
Oradea
Oradea is the capital city of Bihor County, in the Crișana region of north-western Romania. The city has a population of 204,477, according to the 2009 estimates. The wider Oradea metropolitan area has a total population of 245,832.-Geography:...

 as well as the Hungarian king's silver mine at Rodna
Rodna
Rodna is a commune in Bistriţa-Năsăud County, Transylvania, Romania. It is composed of two villages, Rodna and Valea Vinului.During the Late Middle Ages, the Transylvanian Saxon-inhabited commune was sacked by the Mongols during their invasion of the Kingdom of Hungary....

. This prevented the Transylvanian nobility from aiding King Béla IV in the crucial Battle of Mohi
Battle of Mohi
The Battle of Mohi , or Battle of the Sajó River, was the main battle between the Mongol Empire and the Kingdom of Hungary during the Mongol invasion of Europe. It took place at Muhi, Southwest of the Sajó River. After the invasion, Hungary lay in ruins. Nearly half of the inhabited places had...

. A separate Mongol force destroyed the Cumans
Cumans
The Cumans were Turkic nomadic people comprising the western branch of the Cuman-Kipchak confederation. After Mongol invasion , they decided to seek asylum in Hungary, and subsequently to Bulgaria...

 near the Siret
Siret
Siret is a town in Romania, Suceava County, one of the oldest towns in, and a former capital of, the former principality of Moldavia. It is located 2 km from the border with Ukraine, being one of the main border passing points in the North of the country, having both a road border post and a...

 River and annihilated the Cuman Catholic Bishopric of Milcov
Milcov
Milcovul or Milcov is a commune in Vrancea County, Romania. It is located in the historical region of Moldavia. It is composed of two villages, Lămoteşti and Milcovul, and also included Gologanu and Răstoaca before these became separate communes in 2004.In 1227 Milcov became the seat of the...

.
Estimates of population decline in Transylvania owing to the Mongol invasion range from 15-20% to 50%.

Wallachia and Moldavia

The lands east and south of the Carpathians fell under Mongol occupation after 1241, until the Principalities of Wallachia
Wallachia
Wallachia or Walachia is a historical and geographical region of Romania. It is situated north of the Danube and south of the Southern Carpathians...

 and Moldavia
Moldavia
Moldavia is a geographic and historical region and former principality in Eastern Europe, corresponding to the territory between the Eastern Carpathians and the Dniester river...

 emerged in the 14th century as Hungarian vassals.

In 1330 Basarab I, the voivode of Wallachia, managed to ambush and defeat a 30,000-strong Hungarian army led by King Charles I Robert
Charles I of Hungary
Charles I , also known as Charles Robert , was the first King of Hungary and Croatia of the House of Anjou. He was also descended from the old Hungarian Árpád dynasty. His claim to the throne of Hungary was contested by several pretenders...

 in the Battle of Posada
Battle of Posada
The Battle of Posada was fought between Basarab I of Wallachia and Charles I Robert of Hungary.The small Wallachian army led by Basarab, formed of cavalry, foot archers, as well as local peasants, managed to ambush and defeat the 30,000-strong Hungarian army, in a mountainous region near the...

, eliminating Hungarian interference in Wallachia.

In the same period, Moldavia freed itself from Hungarian control, although the Hungarians made some attempts to regain the principality. During the later 14th century and the first half of the 15th century, Moldavia was under Polish suzerainty and the Moldavians supplied Poland with troops during the campaigns against the Teutonic Order in Prussia
Prussia
Prussia was a German kingdom and historic state originating out of the Duchy of Prussia and the Margraviate of Brandenburg. For centuries, the House of Hohenzollern ruled Prussia, successfully expanding its size by way of an unusually well-organized and effective army. Prussia shaped the history...

. Moldavian light cavalry detachments participated in the Battle of Grunwald
Battle of Grunwald
The Battle of Grunwald or 1st Battle of Tannenberg was fought on 15 July 1410, during the Polish–Lithuanian–Teutonic War. The alliance of the Kingdom of Poland and the Grand Duchy of Lithuania, led respectively by King Jogaila and Grand Duke Vytautas , decisively defeated the Teutonic Knights, led...

 and the Siege of Marienburg
Siege of Marienburg (1410)
The Siege of Marienburg was an unsuccessful two-month siege of the castle in Marienburg , the capital of the monastic state of the Teutonic Knights...

 on the Polish-Lithuanian side.

Anti-Ottoman Wars

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...

 became a major military power in the later 14th century, when they conquered Anatolia
Anatolia
Anatolia is a geographic and historical term denoting the westernmost protrusion of Asia, comprising the majority of the Republic of Turkey...

, most of the Balkans and were threatening Constantinople
Constantinople
Constantinople was the capital of the Roman, Eastern Roman, Byzantine, Latin, and Ottoman Empires. Throughout most of the Middle Ages, Constantinople was Europe's largest and wealthiest city.-Names:...

, the capital of the Byzantine Empire
Byzantine Empire
The Byzantine Empire was the Eastern Roman Empire during the periods of Late Antiquity and the Middle Ages, centred on the capital of Constantinople. Known simply as the Roman Empire or Romania to its inhabitants and neighbours, the Empire was the direct continuation of the Ancient Roman State...

.

Conflict firstly erupted between the Ottomans led by Beyazid I and the Wallachians led by Mircea the Elder after the voivode openly supported the Christian peoples south of the Danube who were fighting the Turks. There was also a contest for the control of Dobruja, which had been independent for most of the 14th century, but fell under Ottoman rule in 1388. In 1389 Mircea took control of the province and held it with some interruptions until 1418.

In 1394 Beyazid I crossed the Danube, leading a strong army with the purpose of overthrowing Mircea and replacing him with an Ottoman vassal. The Wallachians adopted scorched earth and guerrilla tactics by starving the Ottomans and mounting small scale attacks. The two armies finally clashed in the indecisive Battle of Rovine
Battle of Rovine
The Battle of Rovine took place on 17 May 1395 between the Wallachian army led by Voivod Mircea cel Bătrân against the Ottoman invasion led by sultan Bayezid I. The Ottoman army, numbering approximately 40,000 men, faced the much smaller Wallachian army, which was about 10,000 men...

. Beyazid failed to put Vlad the Usurper
Vlad I of Wallachia
Vlad I, known as Uzurpatorul , was a ruler of the principality of Wallachia, , during the reign of Mircea I of Wallachia, usurping the throne but only lasting 3 years....

 on the Wallachian throne and in 1396 Mircea was again commanding his army during the Battle of Nicopolis
Battle of Nicopolis
The Battle of Nicopolis took place on 25 September 1396 and resulted in the rout of an allied army of Hungarian, Wallachian, French, Burgundian, German and assorted troops at the hands of an Ottoman force, raising of the siege of the Danubian fortress of Nicopolis and leading to the end of the...

. At Nicopolis, the Wallachian force of 10.000 men formed the left wing of the crusader army and, having witnessed the disastrous attacks made by the western knights and the surrender of Sigismund, escaped the massacre that followed.

The defeat and capture of sultan Beyazid I by Timur Lenk (Tamerlane) in the Battle of Ankara
Battle of Ankara
The Battle of Ankara or Battle of Angora, fought on July 20, 1402, took place at the field of Çubuk between the forces of the Ottoman sultan Bayezid I and the Turko-Mongol forces of Timur, ruler of the Timurid Empire. The battle was a major victory for Timur, and it led to a period of crisis for...

 in 1402 started a period of anarchy in the Ottoman Empire and Mircea took part in the struggles for the Ottoman throne supporting various pretenders. Towards the end of his reign, Mircea signed a treaty with the Ottomans whereby he accepted paying tribute and gave up his claims on Dobruja.

Wallachia fell into anarchy following Mircea’s death in 1418. After 1420 control of the principality changed hands until Alexander I Aldea, an Ottoman vassal was instaled. King Sigismund
Sigismund, Holy Roman Emperor
Sigismund of Luxemburg KG was King of Hungary, of Croatia from 1387 to 1437, of Bohemia from 1419, and Holy Roman Emperor for four years from 1433 until 1437, the last Emperor of the House of Luxemburg. He was also King of Italy from 1431, and of Germany from 1411...

 of Hungary arranged for Aldea’s overthrow and replacement with his own vassal, Vlad II Dracul
Vlad II Dracul
Vlad II , known as Vlad Dracul , was a voivode of Wallachia. He reigned from 1436 to 1442, and again from 1443 to 1447...

.

A series of anti-ottoman offensives were carried by the voivode of Transylvania John Hunyadi
John Hunyadi
John Hunyadi John Hunyadi (Hungarian: Hunyadi János , Medieval Latin: Ioannes Corvinus or Ioannes de Hunyad, Romanian: Iancu (Ioan) de Hunedoara, Croatian: Janko Hunjadi, Serbian: Сибињанин Јанко / Sibinjanin Janko, Slovak: Ján Huňady) John Hunyadi (Hungarian: Hunyadi János , Medieval Latin: ...

, a magyarised Romanian noble. Hunyadi’s forces soundly defeated the Turks in 1441 and 1442. A smaller crusading force commanded by Hunyadi, consisting of Hungarians, Wallachians under Vlad Dracul, Serbs, and a large contingent of German and French knights crossed the Danube into Serbia, defeated two Ottoman armies, captured Niš
Niš
Niš is the largest city of southern Serbia and third-largest city in Serbia . According to the data from 2011, the city of Niš has a population of 177,972 inhabitants, while the city municipality has a population of 257,867. The city covers an area of about 597 km2, including the urban area,...

, crossed the Balkan Mountains in winter, and advanced as far as Sofia
Sofia
Sofia is the capital and largest city of Bulgaria and the 12th largest city in the European Union with a population of 1.27 million people. It is located in western Bulgaria, at the foot of Mount Vitosha and approximately at the centre of the Balkan Peninsula.Prehistoric settlements were excavated...

. The Turkish sultan Murad II
Murad II
Murad II Kodja was the Sultan of the Ottoman Empire from 1421 to 1451 ....

, faced with revolts in 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...

 and the Peloponnese
Peloponnese
The Peloponnese, Peloponnesos or Peloponnesus , is a large peninsula , located in a region of southern Greece, forming the part of the country south of the Gulf of Corinth...

, negotiated with the crusaders, signing a ten-year truce at Edirne in 1444 that recognized Serbian independence and formally released Wallachia from Ottoman vassalage.

In 1444 Pope Eugenius
Pope Eugene IV
Pope Eugene IV , born Gabriele Condulmer, was pope from March 3, 1431, to his death.-Biography:He was born in Venice to a rich merchant family, a Correr on his mother's side. Condulmer entered the Order of Saint Augustine at the monastery of St. George in his native city...

 urged the crusade’s renewal, and Hunyadi marched eastward along the southern bank of the Danube, through northern Bulgaria, toward the Black Sea
Black Sea
The Black Sea is bounded by Europe, Anatolia and the Caucasus and is ultimately connected to the Atlantic Ocean via the Mediterranean and the Aegean seas and various straits. The Bosphorus strait connects it to the Sea of Marmara, and the strait of the Dardanelles connects that sea to the Aegean...

. The crusaders arrived at Varna
Varna
Varna is the largest city and seaside resort on the Bulgarian Black Sea Coast and third-largest in Bulgaria after Sofia and Plovdiv, with a population of 334,870 inhabitants according to Census 2011...

 in November 1444 only to discover that Murad II had assembled a powerful army to meet them. In the ensuing Battle of Varna
Battle of Varna
The Battle of Varna took place on November 10, 1444 near Varna in eastern Bulgaria. In this battle the Ottoman Empire under Sultan Murad II defeated the Polish and Hungarian armies under Władysław III of Poland and János Hunyadi...

, king Wladislaw of Poland and Hungary was killed and the crusader army was completely destroyed. Hunyadi escaped with a small portion of his troops and became governour of Hungary.

In 1447 the Turks campaigned in Albania against Skanderbeg
Skanderbeg
George Kastrioti Skanderbeg or Gjergj Kastrioti Skënderbeu , widely known as Skanderbeg , was a 15th-century Albanian lord. He was appointed as the governor of the Sanjak of Dibra by the Ottomans in 1440...

’s rebels, but operations were cut short by news of a new crusader invasion led by Hunyadi. The crusaders, joined by troops sent by Skanderbeg and Voivode Vladislav II (1447–56), Hunyadi’s Wallachian vassal met the Ottoman army in October 1448 at Kosovo Polje
Kosovo Polje
Kosovo Polje or Fushë Kosova is a town and municipality in the Pristina district of central Kosovo, at 42.63° North, 21.12° East, or approximately eight kilometres south-west of the capital Pristina...

 but were defeated.

Hunyadi’s greatest victory was at the Battle of Belgrade where, in 1456, his much smaller army defeated Sultan Mehmet II, the conquereor of Constantinople, and secured Hungary’s southern border. However, Hunyadi died of plague in his camp shortly after the battle. His son, Matthias Corvinus would become king of Hungary in 1458.

Wallachia, led by Vlad III the Impaler
Vlad III the Impaler
Vlad III, Prince of Wallachia , also known by his patronymic Dracula , and posthumously dubbed Vlad the Impaler , was a three-time Voivode of Wallachia, ruling mainly from 1456 to 1462, the period of the incipient Ottoman conquest of the Balkans...

 (1456–1462, born in Sighişoara
Sighisoara
Sighişoara is a city and municipality on the Târnava Mare River in Mureş County, Romania. Located in the historic region Transylvania, Sighişoara has a population of 27,706 ....

, three-time voivode) stopped paying tribute to the Ottomans in 1459 and in the winter of 1461 to 1462 Vlad crossed the Danube and devastated Northern Bulgaria and Dobruja, leaving over 20,000 dead. In response, Sultan Mehmed II raised an army of around 60,000 troops and 30,000 irregulars and headed towards Wallachia in the spring of 1462. With his army of 20,000–30,000 men Vlad was unable to stop the Turks from entering Wallachia and occupying the capital Târgovişte
Târgoviste
Târgoviște is a city in the Dâmbovița county of Romania. It is situated on the right bank of the Ialomiţa River. , it had an estimated population of 89,000. One village, Priseaca, is administered by the city.-Name:...

 (June 4, 1462), so he resorted to organizing small attacks and ambushes on the Turks. The most important of these attacks took place on the night of June 16–17
The Night Attack
The Night Attack of Târgovişte was a skirmish fought between forces of Vlad III the Impaler of Wallachia and Mehmed II of the Ottoman Empire on Thursday, June 17, 1462. The conflict initially started with Vlad's refusal to pay the Jizya to the Sultan and intensified when Vlad Ţepeş invaded...

, when Vlad and some of his men allegedly entered the main Turkish camp (wearing Ottoman disguises) and attempted to assassinate Mehmed. The Turks eventually installed Vlad’s brother, Radu the Handsome, as the new voivode; he gathered support from the nobility and chased Vlad to Transylvania, and by August 1462 he had struck a deal with the Hungarian Crown.

Moldavia
Moldavia
Moldavia is a geographic and historical region and former principality in Eastern Europe, corresponding to the territory between the Eastern Carpathians and the Dniester river...

 located in the extreme northeast, beyond Wallachia, was spared from problems with the Ottomans until 1420, when Mehmed I
Mehmed I
Mehmed I Çelebi was a Sultan of the Ottoman Empire from 1413 to 1421. He was one of the sons of Bayezid I and Valide Sultan Devlet Hatun Mehmed I Çelebi (Ottoman: چلبی محمد, Mehmed I or Mehmed Çelebi) (1382, Bursa – May 26, 1421, Edirne, Ottoman Empire) was a Sultan of the Ottoman Empire...

 first raided Moldavia after suppressing a rebellion. During the 1450s and 1440s the principality was wracked by civil wars, of which Sultan Murad II
Murad II
Murad II Kodja was the Sultan of the Ottoman Empire from 1421 to 1451 ....

 took advantage. As the state weakened, voivode Peter Aron (1455–57) accepted Ottoman suzerainty and agreed to pay tribute, but, given Moldavia’s distance from Ottoman borders, his acts were merely symbolic.

Stephen the Great initially used the Ottoman vassalage inherited from his father as a tool against Hungary, Moldavia’s traditional enemy. He participated in Mehmed II
Mehmed II
Mehmed II , was Sultan of the Ottoman Empire for a short time from 1444 to September 1446, and later from...

’s invasion of Wallachia against his cousin Vlad the Impaler in 1462 because, at the time, Vlad was a Hungarian ally. An exceptional military commander and organizer, Stephen captured the Danube commercial city of Chilia
Chilia Veche
Chilia Veche is a commune in Tulcea County, Romania, on the Danube Delta . It gave its name to the Chilia branch of the Danube, which separates it from Ukraine...

 from Wallachia in 1465 and defeated a Hungarian invasion of his state in 1467 at the Battle of Baia
Battle of Baia
The Battle of Baia was fought on 15 December 1467 between the Moldavian Prince, Stephen the Great and Hungarian King, Matthias Corvinus. The battle was the last Hungarian attempt to subdue the independent Moldavia, as previous attempts had ended in failure...

. As his successes both on the battlefield and in imposing his authority within Moldavia grew, Stephen ceased paying the annual tribute to the Ottomans, and his relationship with Mehmed II deteriorated. He invaded Wallachia in 1474 and ousted its prince, who was Mehmed’s vassal. In response, Mehmed demanded that Stefan resume his tribute payments and turn over the city of Chilia as well. Stefan refused and soundly repulsed Mehmed’s subsequent punitive invasion of Moldavia in early 1475 near Vaslui
Battle of Vaslui
The Battle of Vaslui was fought on January 10, 1475 between Stephen III of Moldavia and the Ottoman Beylerbey of Rumelia, Hadân Suleiman Pasha. The battle took place at Podul Înalt , near the town of Vaslui, in Moldavia...

.

Stephen realized that Mehmed would seek to avenge the defeat, so he sought Hungarian aid by becoming the vassal of Matthias Corvinus. Mehmed personally led an invasion of Moldavia in 1476, and his forces plundered the country up to Suceava, Stephen’s capital, winning the Battle of Valea Alba
Battle of Valea Alba
The Battle of Valea Albă or Battle of Războieni or Battle of Akdere was an important event in the medieval history of Moldavia. It took place at Războieni, also known as Valea Albă, on July 26, 1476, between the Moldavian army of Ştefan cel Mare and an invading Ottoman army which was commanded...

 on the way. However, all of Stephen's fortresses held fast, and a lack of provisions and an outbreak of cholera
Cholera
Cholera is an infection of the small intestine that is caused by the bacterium Vibrio cholerae. The main symptoms are profuse watery diarrhea and vomiting. Transmission occurs primarily by drinking or eating water or food that has been contaminated by the diarrhea of an infected person or the feces...

 among the Ottoman troops forced Mehmed to retire, and Stefan went on the counteroffensive. With Hungarian help, he pushed forth into Wallachia in 1476, reinstalled Vlad the Impaler on the Wallachian throne, and spent the next nine years fighting a heroic border war with the Ottomans. Stefan’s efforts were the primary reason that the two Romanian Principalities maintained their independence and did not suffer the fate of the other Ottoman vassal states south of the Danube. During the last years of his rule, Stephen defeated a Polish invasion at Codrii Cosminului in 1497 and, by the time of his death, Moldavia was de-facto independent.

Kingdom of Romania

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