Collapse of Communism

Read the three links below. Why did Communism collapse in Eastern Europe and the USSR? Why did people tear down the Berlin Wall? What happened to the Soviet Union and how did the collapse of the Soviet Union change the world?

The main reason why Eastern Europe and the USSR collapse because the wanted to enter to the soviet union by crashing the Berlin Wall and separating the East and West Germany.
East Germany was a Communist and wouldn't allow anyone to cross, including doctors and scientists, if someone will wanted to cross might be shot instantly.
As then East Germany gained freedom from the Soviet Union.
Most people were tearing up, because they wanted to be on the other side, also the police commanders were killing a lot of people.

The Soviet Union was destroyed, most groups that Soviet they had were separated from each other. These success was one of the very important turning points in history. At the very end of this battle that seemed without an end, but finally the the walls were destroy and the people from both sides could get back to their original places.