The soviet union’s approach to security differed from the US approach because the soviets sought to protect themselves from attack.
Gorbachev's selection to allow elections with a multi-party machine and create a presidency for the Soviet Union started a slow process of democratization that sooner or later destabilized Communist manipulation and contributed to the crumble of the Soviet Union.
The dissolution of the Soviet Union (1988–1991) became the method of internal disintegration within the Soviet Union (u.s.) which resulted in the long run of us of a's and its federal authorities existence as a sovereign state, thereby ensuing in its constituent republics gaining full sovereignty.
Numerous republics started resisting vital manipulation, and growing democratization brought about a weakening of the central authorities. The Soviet Union in the end collapsed in 1991 while Boris Yeltsin seized energy in the aftermath of a failed coup that had attempted to topple reform-minded Gorbachev.
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