The state of political hostility that existed between the Soviet bloc countries and the US-led Western powers from 1945 to 1990.
The principle that the US should give support to countries or peoples threatened by Soviet forces or communist insurrection. First expressed in 1947 by US President Truman in a speech to Congress seeking aid for Greece and Turkey, the doctrine was seen by the communists as an open declaration of the Cold War.
The Marshall Plan (officially the European Recovery Program, ERP) was the American initiative to aid Europe, in which the United States gave $13 billion in economic support to help rebuild European economies after the end of World War II in order to prevent the spread of Soviet Communism.
The COMECON was the Eastern Bloc's reply to the formation of the Organization for European Economic Co-Operation in Western Europe.
NATO was established
The North Atlantic Treaty Organization, also called the Atlantic Alliance, is an intergovernmental military alliance based on the North Atlantic Treaty which was signed on 4 April 1949
Soviet Union Tests their first atomic bomb
The Soviet Unions' first nuclear test. 29 August 1949 - First Soviet nuclear test. On 29 August 1949, the Soviet Union conducted its first nuclear test, code-named 'RDS-1', at the Semipalatinsk test site in modern-day Kazakhstan.
China becomes a communist country
Communist Party Chairman Mao Zedong proclaimed the establishment of the People's Republic of China.
The Warsaw Pact, so named because the treaty was signed in Warsaw, included the Soviet Union, Albania, Poland, Romania, Hungary, East Germany, Czechoslovakia, and Bulgaria as members.
Berlin Wall was built
During the early years of the Cold War, West Berlin was a geographical loophole through which thousands of East Germans fled to the democratic West. In response, the Communist East German authorities built a wall that totally encircled West Berlin. It was thrown up overnight, on 13 August 1961.
Cuban Missle crisis
The Cuban Missile Crisis was a thirteen-day confrontation from October 15 to October 28, 1962 between the United States and the Soviet Union over the positioning of nuclear missiles in Cuba. In 1962, the Soviet Union secretly placed nuclear-tipped missiles on the Communist-led island of Cuba.