History of Germany (1945–90) eventually hundreds of thousands of people in several cities—particularly in Leipzig—continued to grow. On 7 October, the Soviet leader Mikhail Gorbachev visited Berlin to celebrate the 40th anniversary of the establishment of East Germany and urged the East German leadership to pursue reform, without success. The movement of civil resistance against the East German regime—both the emigration and the demonstrations—continued unabated. On 18 October, Erich Honecker was forced to resign as head of the SED and as head of state and was replaced by Egon Krenz. But the exodus continued unabated, and pressure for political reform mounted. On 4 November,
Socialist Unity Party of Germany 1980s, the SED rejected the liberalisation policies of Soviet leader Mikhail Gorbachev, such as "perestroika" and "glasnost", which would lead to the GDR's isolation from the restructuring USSR and the party's downfall in the autumn of 1989. The party's dominant figure from 1950 to 1971, and effective leader of East Germany, was Walter Ulbricht. In 1953, an uprising against the Party was met with violent suppression by the Ministry of State Security and the Soviet Army. In 1971, Ulbricht was succeeded by Erich Honecker who presided over a stable period in the development of the GDR until he was forced