Mikhail Gorbachev Nikita Khrushchev. He was appointed the First Party Secretary of the Stavropol Regional Committee in 1970, in which position he oversaw construction of the Great Stavropol Canal. In 1974 he moved to Moscow to become First Secretary to the Supreme Soviet and in 1979 became a candidate member of the Politburo. Within three years of the death of Soviet leader Leonid Brezhnev, following the brief "interregna" of Yuri Andropov and Konstantin Chernenko, Gorbachev was elected general secretary by the Politburo in 1985. Although committed to preserving the Soviet state and to its socialist ideals, Gorbachev believed significant reform was necessary
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