Cold War Annotated Timeline

  • United Nations formed

    The United Nations is established to promote international cooperation and peacekeeping efforts between nations.
  • Truman Doctrine

    A policy announced by U.S. President Harry S. Truman to provide military and economic assistance to Greece and Turkey in order to prevent the spread of communism in the region.
  • Hollywood 10

    A group of Hollywood screenwriters and directors who were accused of communist sympathies and refused to testify before the House Un-American Activities Committee (HUAC).
  • Marshall Plan

    A U.S. program to aid Western Europe with economic assistance to help rebuild after World War II and contain the spread of communism.
  • NATO formed

    The North Atlantic Treaty Organization is established by the United States, Canada, and several Western European countries as a military alliance for mutual defense against the Soviet Union.
  • Korean War

    A conflict between North and South Korea supported by the Soviet Union and the United States, respectively, that resulted in a ceasefire and a divided Korea.
  • Space Race/Sputnik

    The Soviet Union launches Sputnik, the first artificial satellite, into space, sparking a competition between the Soviet Union and the United States to explore space and develop advanced technology.
  • Bay of Pigs

    A failed CIA-sponsored invasion of Cuba by Cuban exiles in an attempt to overthrow the communist government of Fidel Castro.
  • Berlin Wall goes up

    East German authorities build a wall separating East and West Berlin in order to prevent citizens from fleeing to the West.
  • U.S. official enters Vietnam War

    The United States sends combat troops to Vietnam to support the South Vietnamese government against communist forces in the region.
  • Soviets invade Afghanistan

    The Soviet Union invades Afghanistan to support the communist government in the country, leading to a long and costly war.
  • Berlin Wall comes down

    The Berlin Wall is dismantled by East German authorities, symbolizing the end of the Cold War and the reunification of Germany.