How did dissidents in satellite states and non-russian soviet republics affect the collapse of the soviet union?

The Union of Soviet Socialist Republics (USSR) collapsed in the late 1980s. This overthrow of the Soviet Empire is related to the erosion of the communist model of government, implanted in Russia in 1917 and spread to other Eastern European countries in following decades, especially during the period of Stalinist totalitarianism. The centralizing and coercive government of the USSR, since the 1970s, has become incompatible with the reality of globalization and technological modernization presented by countries where the democratic political culture and the free market economy predominated.

At the turn of the 1970s to the 1980s, the USSR was faced with the contingency of cutting spending on wars and the promotion of other countries in which the communist model was installed, such as Cuba.

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