The best explanation for the collapse of the Soviet Union

Answer 1

The collapse of the Soviet Union was caused by a combination of internal and external factors. Internally, the Soviet Union was plagued by economic stagnation, a lack of political reform, and a growing sense of dissatisfaction among its citizens. Externally, the Soviet Union was weakened by its costly involvement in the Cold War, its inability to keep up with the economic advances of the West, and the increasing pressure from the United States and its allies.