First Republic of Armenia
During that time, the Soviet 11th Red Army invasion started on the 29th of November 1920. The actual transfer of power took place on December 2 in Yerevan. Armenian leadership approved an ultimatum, presented to it by the Soviet plenipotentiary Boris Legran - who was at work as one of major Russian diplomats on Caucasus at that time. Armenia decided to join the Soviet sphere, while the Soviet Russia agreed to protect its remaining territory from the advancing Turkish army. Soviets also pledged to take steps to rebuild the army, protect the Armenians, not to pursue non-communist Armenians. None of these promises were kept.