Although the Bolsheviks succeeded in ousting the Turks from their positions in Armenia, they decided to establish peace with Turkey. In 1921, the Bolsheviks and the Turks signed the Treaty of Kars, in which Turkey ceded Adjara to the USSR in exchange for the Kars territory (today the Turkish provinces of Kars, Surmalu, and Ardahan). The land given to Turkey included the ancient city of Ani and Mount Ararat, the spiritual Armenian homeland. In 1922, the newly proclaimed Armenian Soviet Socialist Republic, under the leadership of Alexander Miasnikyan, became part of the Soviet Union as one of three republics comprising the Transcaucasian SFSR.