Collapse of the Soviet Union

The Soviet Union was a global superpower, possessing the largest armed forces on the planet with military bases from Angola in Africa, to Vietnam in South-East Asia, to Cuba in the Americas. When Mikhail Gorbachev succeeded Konstantin Chernenko as General Secretary of the Central Committee of the Communist Party of the Soviet Union in March 1985, nobody expected than in less than seven years the USSR would disintergrate into fifteen separate states.
Gorbachev's attempt at democratising the totalitarian Soviet system backfired on him as the Soviet republics began to revolt against Moscow's…