When Germany was divided into American, Soviet, British, and French occupation zones after World War II, Berlin, although located within the Soviet Zone, became a separate unit. The arrangement symbolized the city's continuing role as the capital of a Germany that was still considered one country. In 1948, however, soon after the breakup of the four-power administration of the former nation of Germany, the joint administration of Berlin also came to an end. Claiming that Berlin …showed first 75 words of 380 total…

…showed last 75 words of 380 total…Berlin and from there to West Germany. In the mid-1960s pass agreements allowed West Berliners to visit East Berlin for brief periods. This and further normalization of relations between the two parts of Berlin and Germany in 1971 were due largely to the Ostpolitik policy of Willy Brandt, mayor of Berlin from 1957 to 1966 and chancellor of Germany from 1969 to 1974. In 1967 and 1968, West Berlin was the scene of major student demonstrations for educational and political reforms.