Armenian Soviet Socialist Republic

Flag of Armenian SSR

Borders of Armenian SSR during period of June 3 and July 4 1921, Nagorno-Karabakh part of the Soviet Armenia

Map of Soviet Armenia and the Nagorno-Karabakh Autonomous Oblast in 1926

The Armenian Soviet Socialist Republic (ArSSR), also known as the Armenian SSR or Soviet Armenia, was one of the constituent republics of the Soviet Union, located in the Caucasus region of Eurasia. It came into being on 29 November 1920, with the Sovietization of the short-lived First Republic of Armenia. Consequently, historians refer to it as the Second Republic of Armenia. It became independent as the Republic of Armenia during the dissolution of the Soviet Union in 1991.