Video: 'Vietnam: A Television History - Vietnamizing the War [7/11]' (Sept. 15, 1972, at 47:22)

(Friday, September 15, 1972, 5:00 p.m. Saigon Standard Time; during the Vietnam War, the Indochina Wars and the Cold War) — South Vietnam’s Army of the Republic of Vietnam defeated the People’s Army of Vietnam today at the ancient citadel of Quang Tri, ending North Vietnam’s three-plus month occupation of South Vietnam’s northernmost provincial capital and the Second Battle of Quang Tri.

Video: 'Chien truong Viet Nam: Tran Quang Tri 1972 - Battle of Quang Tri Vietnam 1972 (16:9 HD)' (Sept. 15, 1972, at 1:29:24)

It was the most significant victory for the Saigon government since the North Vietnamese launched their Easter Offensive on Mar. 30, 1972.

Video: The Battle of Quang Tri, 1972: Short Animation'

To achieve victory, the Army of the Republic of Vietnam, backed by the U.S. Army, shelled more than 80,000 tons of ordnance, the destructive capacity equivalent to almost six Hiroshima-size atomic bombs.