|Red Army invasion of Armenia|
|Part of the Armenian–Azerbaijani War and the Russian Civil War|
Red Army in Yerevan, November 1920
|First Republic of Armenia||Turkish Provisional Government|
|Commanders and leaders|
Mikhail G. Yefremov
The Red Army invasion of Armenia, also known as the Russian-Armenian war or Sovietization or Soviet invasion of Armenia, Soviet occupation of Armenia, was a military campaign carried out by the 11th Army of Soviet Russia from September to 29 November 1920 to install a new Soviet government in the First Republic of Armenia, a former territory of the Russian and Ottoman Empires. The invasion coincided with the anti-government insurrection staged by the local Armenian Bolsheviks in the capital, Yerevan, and other cities and populated place over the country. The invasion led to the dissolution of the First Republic of Armenia and the establishment of the Armenian Soviet Socialist Republic.