Cold War Timeline By dance08 Jan 1, 1947 Start Period: Jan 1, 1947 to Dec 31, 1991 Cold War Jun 1, 1950 Korean War Begins Jul 1, 1953 Korean War Ends May 1, 1955 Warsaw Pact formed Aug 1, 1961 Berlin Wall Built Oct 1, 1962 Cuban Missile Crisis Jul 1, 1965 First US Troupes sent to Vietnam Nov 1, 1989 Fall of the Berlin Wall Jul 1, 1991 Warsaw Pact Ended Dec 31, 1991 End