USA HISTORY

Detailed explanation-1: -East Berlin was the de facto capital city of East Germany (GDR) from 1949 to 1990. Formally, it was the Soviet sector of Berlin, established in 1945. The American, British, and French sectors were known as West Berlin .

Detailed explanation-2: -Berlin, although located within the Soviet zone, was also split amongst the four powers. The American, British and French sectors would form West Berlin and the Soviet sector became East Berlin.

Detailed explanation-3: -At the Yalta Conference held in February 1945, the Allies divided Berlin into four sectors – France controlled the north-western, England the western and the USA the south-western parts of the city, while the whole of the eastern part of Berlin was allocated to the Soviet Union.

Detailed explanation-4: -The city of Berlin, though technically part of the Soviet zone, was also split, with the Soviets taking the eastern part of the city. After a massive Allied airlift in June 1948 foiled a Soviet attempt to blockade West Berlin, the eastern section was drawn even more tightly into the Soviet fold.

Detailed explanation-5: -Even though Berlin was located entirely within the Soviet part of the country (it sat about 100 miles from the border between the eastern and western occupation zones), the Yalta and Potsdam agreements split the city into similar sectors. The Soviets took the eastern half, while the other Allies took the western.