Cold War Timeline

  • January, 1 1947

    Britain and the United States merged their German occupation zones to form Bizonia. The National Coal Board took over the British coal mining industry.
  • July, 1947

    Foreign Affairs publishes Kennan's "X" Article on the "Sources of Soviet Conduct," publicizing his containment theory.
  • Period: to

    Cold War Timeline

  • March 12, 1947

    President Truman announces the Truman Doctrine, informing Congress, "I believe that it must be the policy of the United States to support free peoples who are resisting attempted subjugation by armed minorities or by outside pressures."
  • June 5, 1947

    Secretary of State George Marshall, in a commencement address at Harvard University, announces a package of economic assistance to aid in European recovery. Though not "directed not against any country or doctrine but against hunger, poverty, desperation and chaos," the Marshall Plan further divides Europe into two spheres of influence.
  • July 26, 1947

    Congress passes the National Security Act, which creates a civilian Secretary of Defense (the first was James Forrestal), a National Security Council, a Central Intelligence Agency--but does not call for universal military training.
  • February 25, 1948

    Communist takeover in Czechoslovakia
  • March 2, 1948

    Truman's Loyalty Program created to catch Cold War spies
  • June 24, 1948

    Berlin Blockade begins lasting 11 month
  • April 4, 1949

    NATO ratified
  • August 29, 1949

    Russia tested its first atomic bomb
  • October 1, 1949

    Communist Mao Zedong takes control of China and establishes the People's
    Republic of China
  • February, 1950

    Joe McCarthy begins Communist witch hunt and loyalty tests
  • January 30, 1950

    Truman approved H-bomb development
  • June 24, 1950

    Korean War begins. Stalin supports North Korea who invade South Korea equipped with Soviet weapons
  • January 4, 1951

    Chinese soldiers capture Seoul.
  • January 12, 1951

    Federal Civil Defense Administration established
  • April 11, 1951

    Truman fires MacArthur
  • 1952

    A-bombs developed by Britain
  • February 18, 1952

    Greece and Turkey join NATO.
  • April 28, 1952

    The Treaty of San Francisco, signed by Japan
  • March 17-June 4, 1953

    Nuclear Arms Race atomic test series of 11 explosions at Nevada Test Site
  • April 15, 1953

    RAND report on the "Vulnerability of U. S. Strategic Air Power"
  • December 8, 1953

    Ike's Atoms for Peace speech
  • January 21, 1954

    The U.S. launches the world's first nuclear submarine, the USS Nautilus.
  • March 1, 1954

    H-bomb Castle-Bravo test
  • March 8, 1954

    U.S. and Japan Mutual Defense Assistance Agreement is signed by the United States and Japan.
  • 1955

    The USS Nautilus becomes the first operational nuclear powered submarine.
  • February 24, 1955

    The Baghdad Pact is founded by Iran, Iraq, Pakistan, Turkey, and the United Kingdom.
  • May 14th, 1955

    Warsaw Pact
  • June 29, 1956

    USSR sent tanks into Poznan, Poland, to suppress demonstrations by workers
  • September 4, 1956

    USSR sent military aid to Afghanistan
  • October 29, 1956

    Suez Crisis began with Israeli attack led by Moshe Dayan against Egyptian forces
    in the Sinai
  • August 26, 1957

    Vostok rocket launched 1st ICBM
  • October 4 , 1957

    Sputnik launched into orbit
  • November 3, 1957

    Sputnik II launched - Laika died in space
  • July 1958

    NASA began Mercury project using Atlas rocket
  • November 1958

    Khrushchev demands withdrawal of troops from Berlin
  • January 31, 1958

    Explorer I launched
  • January 1959

    Cuba taken over by Fidel Castro
  • September 1959

    Khrushchev visits United States; The Kitchen Debate
  • November 27th, 1959

    The Soviet Union demands that all foreign troops should be withdrawn from Berlin.
  • May 1960

    Soviet Union reveals that U.S. spy plane was shot down over Soviet territory
  • November 1960

    John F. Kennedy elected President of USA
  • December 19, 1960

    Cuba openly aligns itself with the Soviet Union and their policies.
  • April, 1961

    Bay of Pigs invasion see Cuban Missile Crisis Timeline
  • August 13, 1961

    Berlin border is closed
  • August 17, 1961

    Construction of Berlin Wall begins