Republics of the Soviet Union Republics of the Soviet Union The Republics of the Union of Soviet Socialist Republics or the Union Republics () of the Union of Soviet Socialist Republics (USSR) were ethnically based proto-states that were subordinated directly to the Government of the USSR. For most of its history, the USSR was a highly centralized state; the decentralization reforms during the era of "Perestroika" ("Restructuring") and "Glasnost" ("Openness") conducted by Mikhail Gorbachev are cited as one of the factors which led to the dissolution of the USSR in 1991. According to Article 76 of the 1977 Soviet Constitution, a Union Republic was a
Mikhail Gorbachev in the Soviet Union weakened, and centralized power from Moscow was unable to combat centrifugal forces in the South. In the elections, many Party candidates were defeated. Furthermore, Boris Yeltsin was elected as mayor of Moscow and returned to political prominence to become an increasingly vocal critic of Gorbachev. Gorbachev chose a vice president; but when first Shevardnadze, then Kazakh leader Nursultan Nazarbayev, turned it down, Gorbachev chose Gennady Yanayev, the head of the All-Union Central Council of Trade Unions and a known hardliner. This decision would come back to haunt Gorbachev later. In contrast to the controversy at home