The document summarizes the events leading up to the construction of the Berlin Wall in August 1961. It describes how after World War 2, Germany was divided into East and West, with Berlin also divided. By the late 1950s, hundreds of thousands of East Germans were fleeing to West Berlin to escape repressive conditions. In response, the East German government, with Soviet support, hastily constructed the Berlin Wall overnight on August 13, 1961 to seal off West Berlin and prevent further emigration. The wall severed families and cut off access between the eastern and western sectors of the divided city.