in an effort to stem the tide of refugees attempting to leave east berlin, the communist government of east germany begins building the berlin wall to divide east and west berlin. construction of the wall caused a short-term crisis in u.s.-soviet bloc relations, and the wall itself came to symbolize the cold war.
During the early years of the Cold War, West Berlin was a geographical loophole through which thousands of East Germans fled to the democratic West. In response, the Communist East German authorities built a wall that totally encircled West Berlin. It was thrown up overnight, on 13 August 1961.
The Berlin Wall was partially East Germany response to the increasing emigration from East Berlin to West Berlin of highly skilled and qualified workers, to escape from communism to capitalism. This emigration generated a disastrous economic strain and it raised tensions between East and West.
The East Germany had to build the wall to stop the flow of refugees that attempted to leave East Berlin to the West. The wall was a symbol of the division between communist East Berlin and democratic capitalism of West Berlin. The Soviet bloc defended the wall on the terms that they needed protection against the degrading and immoral influences of the West capitalism.