Opposed by the USSR, the United States emphasizes the need to rebuild the German economy. With the introduction of the Deutsche Mark, the Soviets react by tightening checkpoints leading into the French, British, and American sectors of Berlin, ultimately leading to a ground blockade of the city. To keep the city from starvation, the western allies begin the Berlin Airlift, ferrying in supplies by plane. German Communists in Berlin successfully take over the city's municipal government, which causes both the city and country to be divided between east and west. Interviews in Episode 4 include Gail Halvorsen, Sir Freddie Laker and Clark Clifford.
https://edition.cnn.com/2014/01/02/world/the-cold-war-landmark-documentary/index.html
The struggle between communism and capitalism defined the second half of the 20th
Century. The Cold War pitted east against west, pushing the world to the brink of nuclear war. It describes the events that shaped the tense relationships between the Soviet Union and the United States.