What was the reason for the fall of communism in the soviet union

the Cuban missile crisis led to the hotline being set up. and after that, the two nations, US and USSR, decided to set up SALT Treaties, which turned out quite bad, also with the Olympics issue. This led to a halt in the détente process where both nations were at agreement. However, the Berlin Wall collapsed and its problems were solved. Then, the Soviets lost power as the Berlin Wall was set up by them in 1959(?). So the barrier was put down = ending most conflicts between the two countries. this then reduced the power of USSR, due to Mikhail Gorbachev's rule (premier of USSR), ending with the collapse of Soviet Union.

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roosevelt essentially took the opposite approach as hoover in taking on the great depression. herbert hoover thought that america and its economy could naturally recover from the depression in due course, so he adamantly restrained the federal government from intervening on behalf of the people affected. on the other hand, roosevelt dramatically increased employment by expanding the federal government and establishing agencies that would aid in relieving some of the country's worst problems.