The causes for the disintegration of the Soviet Union in 1991 were as given below:\tEconomic stagnation:\xa0The Soviet economy used much of its resources in maintaining a nuclear and military arsenal and the development of its satellite states in Eastern Europe and within the Soviet system. This led to huge expenditure and economic stagnation.\tKnowledge about the advance of the West:\xa0The citizens became more knowledgeable about the economic advance of the West. They came to know about the disparities between their system and the system of the West.\tStagnation in administration and political sphere:\xa0The Communist Party had ruled the Soviet Union for 70 years but was not accountable to the people. The administration was bureaucratic and authoritarian. There was no place for dissent. There was too much corruption. There was no system to correct mistakes. Party leaders enjoyed more privileges than ordinary citizens.