Vietnam war and Cold War By sbear135 Mar 12, 1947 President Truman issues the Truman Doctrine Period: Mar 12, 1947 to Dec 29, 1991 The Cold War Period: Jun 24, 1948 to May 12, 1949 Berlin Blockade Period: Jun 25, 1950 to Jul 27, 1953 The Korean War May 7, 1954 Battle of Dien Bien Phu Jul 21, 1954 Creation of the Geneva Accords and 17th Parallel. Period: Nov 1, 1955 to Mar 29, 1973 U.S. Involvement in Vietnam. May 6, 1960 The U-2 Incident Nov 22, 1963 Kennedy's Assassination Mar 16, 1968 My Lai Massacre Jul 16, 1969 Moon Landing May 4, 1970 Kent Protest + Shooting