Mikhail Gorbachev Mikhail Gorbachev Mikhail Sergeyevich Gorbachev (born 2 March 1931) is a Russian and formerly Soviet politician. He was the eighth and last leader of the Soviet Union, having been General Secretary of the governing Communist Party of the Soviet Union from 1985 until 1991. He was the country's head of state from 1988 until 1991, serving as Chairman of the Presidium of the Supreme Soviet from 1988 to 1989, Chairman of the Supreme Soviet from 1989 to 1990, and President of the Soviet Union from 1990 to 1991. Ideologically a socialist, he initially adhered to Marxism-Leninism although following the Soviet
Mikhail Gorbachev other republics. Around the 50th anniversary of the signing of the 1939 Molotov–Ribbentrop Pact in July 1989, the Soviet government formally acknowledged that the plan had included the placing of the Baltic states into the Soviet sphere of influence, which paved the way for their annexation into the USSR in 1940. The revelation supported the long-denied proposition that the Baltic states had been involuntarily brought into the Soviet Union, and so it boosted the Baltic aspirations to reestablish their independence. Finally, the Eastern bloc fragmented in the autumn of 1989, and Gorbachev made the decision not to use military force