Cold War Timeline By abecka123 May 17, 1945 U.S. Drops Bomb on Hiroshima, Japan Period: Oct 15, 1945 to Oct 15, 1991 Cold War Timeline Jun 2, 1947 Communists Sieze Power in Poland Aug 29, 1949 Soviet Union Explodes First Nuclear Bomb Jun 2, 1950 U.S. and U.N. Members Fight North Korean Forces Sep 8, 1954 Southeast Asia Treaty Organization Formed May 14, 1955 Warsaw Pact Formed Oct 4, 1957 Soviets Launch First Man-Made Satilite Aug 15, 1961 East Germany Builds Berlin Wall Oct 16, 1964 China Explodes It's First Atomic Bomb Oct 17, 1965 U.S. Sends Troops to Dominican Republic Aug 21, 1968 Soviet Red Army Defeats Czech Uprising Feb 17, 1972 President Richard Nixon Visits China Apr 30, 1975 South Vietnam Falls to Communist Forces Dec 26, 1991 Soviet Union Defeated Boris Yeltsin becomes the President of Russia.
