Is it ensure, insure, or assure?
nominally independent state formed by Soviet Russia in eastern Siberia in 1920 and absorbed into the Soviet Union in 1922. At the time of the Far Eastern Republic's creation, the Bolsheviks controlled Siberia west of Lake Baikal, while Japan held much of the Pacific coast, including Vladivostok. Lenin therefore ordered the creation of the Far Eastern Republic, centring on the city of Chita, to act as a buffer between Soviet and Japanese holdings. Once Soviet power was firmly established in Siberia, the republic was to be absorbed into the Russian Soviet Federated Socialist Republic.