Berlin Wall
By late 1989 the GDR was suffering from many problems such as a struggling economy, and large-scale protests. The Hungarian regime had collapsed and  was dismantling its border fences with Austria by August 1989. Since the Warsaw Pact allowed citizens to travel within the Soviet bloc, many East German tourists fled to the west via Hungary. When the Hungarian government refused the GDR's demand to stop defectors, East Germany banned all travel to Hungary; prompting demonstrations and protest. This began the GDR's isolation within the bloc.