Cold War events involving Australia By theandrewhead3 Sep 2, 1945 Japan Surrenders - End of World War II Oct 24, 1945 United Nations formed Period: Jun 25, 1950 to Jul 27, 1953 Korean War Sep 1, 1951 ANZUS Pact signed Sep 8, 1954 SEATO Treaty signed Period: Nov 1, 1955 to Apr 30, 1975 Vietnam War Jun 30, 1977 SEATO Disbanded Dec 26, 1991 Soviet Union Disbanded - Cold War ends