Cold War By Ally Andrus Mar 5, 1946 Iron Curtain Speech Mar 12, 1947 Truman Doctrine Jul 5, 1947 Marshall Plan Jul 16, 1947 Policy of containment Jun 24, 1948 Berlin Airlift Apr 4, 1949 NATO formed Nov 1, 1952 US tests the H-Bomb May 14, 1955 Warsaw Pact formed Jun 25, 1955 Korean War Nov 27, 1955 Vietnam War Oct 4, 1957 Launch of Sputnik May 1, 1960 U-2 Incident May 1, 1960 U-2 Incident Apr 17, 1961 Bay of Pigs invasion Aug 13, 1961 Berlin Wall built Oct 14, 1962 Cuban Missile Crisis Jul 1, 1968 Non Proliferation Treaty Mar 11, 1985 Soviet Union break-up Oct 3, 1990 Germany reunification