Cold War: In the Vienna summit, the Soviet premier Nikita Khrushchev sparks the Berlin Crisis by threatening to sign a separate peace treaty with East Germany and ending American, British and French access to East Berlin.

The Cold War was a period of international geopolitical rivalry between the United States (US) and the Soviet Union (USSR) and their respective allies, the capitalist Western Bloc and communist Eastern Bloc. It began in the aftermath of the Second World War and ended with the dissolution of the…