Answer:
On November 9, 1989, demand for change built up in East Germany which resulted in demonstrations in many East Germany cities. Growth in democracy in Hungary meant that East Germans could travel to West Germany via Hungary and Czechoslovakia. As soon as democratic elections were announced in Hungary there was a mass movement of East German citizens through Hungary to West Germany. As a result, the East German government was forced to announce much greater freedom of travel for East German citizens. As part of this decision, the East German government announced that East Germans would be allowed to cross the border with West Berlin. This led to German reunification and East Germany ceased to exist. It also began the "thaw" to the Cold War.
