Question

The berlin wall was built by the east germans and the soviet union to __________. stop trade between east and west berlin force the western allies to give up their occupation zones in berlin stop the flood of refugees leaving east germany for the west via west berlin prevent east germans from coming to east berlin

Answer 1

Prohibit the massive immigration of mainly intellectuals into more prosperous west Berlin, thereby safeguarding the power and control of the east German government and the community bloc there.