Vietnam War 1954-1983 By Carolyn Trask Jun 24, 1954 Temporary divison of North and South Vietnam VN Wars: FIrst Indochina War Oct 26, 1955 South Vietnam declares itself The Republic of Vietnam Vietnam History Dec 20, 1960 The NLF was established in South Vietnam Sep 18, 1961 J.F.K sends 400 Troups to South Vietnam as advisors Aug 7, 1964 The US Congress passes the Gulf of Tonkin Resolution Mar 8, 1965 Operation Rolling Thunder campain begins Operation Rolling Thunder Mar 16, 1968 US Soldiers kill hundreds of Vietnam civilians in Mai Lai My Lai Massacre Nov 13, 1969 Americans learn of the My Lai Massacre Mar 1, 1972 North Vietnamese cross Demiliterized zone Mar 29, 1973 Lsst US troups are withdrawn from South Vietnam Mar 3, 1975 North VIetnam launches a mass assault on South Vietnam Jun 7, 1976 Vietnam is classified as a communist country, The Socialist Republic of Vietnam Nov 13, 1983 The Vietnam Memorial in Washington DC is dedicated