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Battle of Transylvania
Part of the Romanian Campaign of World War I
Romanian troops in Transylvania
Romanian troops in Transylvania
Date27 August 1916 — 26 November 1916
LocationTransylvania, present-day Romania
Result Central Powers victory
Belligerents
Flag of Romania Kingdom of Romania
Flag of Russia Russian Empire
Flag of the German Empire German Empire
Flag of Austria-Hungary 1869-1918 Austria-Hungary
Commanders and leaders
Kingdom of Romania Alexandru Averescu

German Empire Erich von Falkenhayn

Austria-Hungary Arthur Arz von Straußenburg
Strength
440,000 (initially)[1] 70,000 (initially)[1]
Casualties and losses
Unknown Unknown

The Battle of Transylvania was the first major operation of the Romanian Campaign during World War I, beginning on 27 August 1916. It started as an attempt by the Romanian Army to seize the disputed province of Transylvania and potentially knock Austria-Hungary out of the war. Although initially successful, the offensive was brought to a halt after Bulgaria's attack on Dobruja, and a successful German and Austro-Hungarian counterattack after September 18 eventually forced the Romanian Army to retreat back to the Carpathians by late November.

Background[]

Before the war, the Kingdom of Romania was an ally of Austria-Hungary. However, when war broke out in 1914, Romania pledged neutrality, claiming that Austria-Hungary had started the war and thus Romania had no obligation to join it. Romania eventually joined the Entente, on the condition that the Allies recognise Romanian authority over Transylvania. The province had a Romanian majority, but it had been under Austrian rule since the 17th century (since 1867 by Austria-Hungary). The Allies accepted the terms, and Romania declared war on Austria-Hungary on 27 August.

Battle[]

Romanian offensive (27 August – 15 September)[]

Tropas-rumanas-cárpatos--rumaniassacrific00neguuoft

Romanian troops crossing the Carpathians into Transylvania

On the night of 27 August, three Romanian armies crossed the largely undefended Carpathian passes, meeting only sporadic resistance by Austro-Hungarian border units. The Romanian plan (Hypothesis Z) called for a rapid advance to the strategically important Mureş River. Romanian units advanced slowly, taking Braşov on 16 August, crossing the Olt River on 4 September and reaching the outskirts of Hermannstadt (modern-day Sibiu) by mid-September. Three Russian divisions also arrived in Northern Romania, but they suffered from supply shortages and had little overall effect on the fighting. However, by this time Bulgaria declared war on Romania and captured Turtucaia fortress, which, combined with German and Austro-Hungarian reinforcements in Transylvania, led the Romanian High Command to suspend the offensive. Several units were moved from Transylvania to Southern Romania, and the remaining troops switched to a defensive strategy. From this point on, the Romanian Campaign would take a turn for the worse for the Allies.

Central Powers Counter-offensive (18 September – 29 November)[]

Frati romani

Airborne leaflet spread over Braşov in August 1916, calling on the local Romanian population to support the Romanian Army offensive

In the meantime, Erich von Falkenhayn, recently fired as Chief of Staff, assumed command of the Ninth Army and begun a counterattack against the Romanians. On 18 September, German forces struck the Romanian First Army near Haţeg, forcing them to retreat. Eight days later, the elite Alpen Korps repulsed a Romanian attack on Sibiu, and on 4 October the Romanian Second Army was defeated at Brasov. The Fourth Army, despite little pressure from the enemy, retreated to the mountains. By 25 October, the Romanian troops were routed and withdrew to their prewar positions. For several weeks, the Ninth Army made probing attacks in the mountains to test the Romanian defenses. On 10 November, Falkenhayn launched his main attack on the Vulcan Pass, inflicting heavy losses on the Romanians. By 26 November, the Romanian defenses were shattered and German troops were crossing into Wallachia, closing in on the Romanian capital, Bucharest.

Aftermath[]

The battle ended in disaster for the Romanians, who failed to take advantage of their numerical superiority and favorable strategic position (Transylvania was practically a massive, poorly-defended bulge in the Allied lines). General Averescu, the Romanian commander-in-chief, reflected that "the offensive, which faced no difficulties, moved slowly, but when difficulties arose, the retreat was precipitous". Falkenhayn's forces secured a position to attack Bucharest from the North; combined with August von Mackensen's offensive from the south, South-West Romania was enveloped in a double pincer attack, and the Romanian Army fled to Moldova. By 6 December, Romania had suffered 250,000 casualties and lost nearly two-thirds of its territory, including its capital.

Notes[]

References[]

  • Keegan, John (2000) [1998]. "The Year of Battles". Vintage Books. 
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The original article can be found at Battle of Transylvania and the edit history here.
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