After Stalin's sudden death, Nikita Khrushchev takes over the Soviet Union, reversing some of Stalin's oppressive policies. Khrushchev also reestablishes relations with Yugoslavia and in a secret speech given to the Soviet leadership he denounces Stalin's harsh policies. Meanwhile, West Germany begins to rearm, leading the USSR to establish the Warsaw Pact in response. Trying to maintain Soviet influence in Eastern Europe, Khrushchev sends troops into East Germany, Poland, and Hungary to put down revolts. Interviews in Episode 7 include Anatoly Dobrynin, Charles Wheeler and Sergei Khrushchev.
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.