The Battle of Khe Sanh was conducted in northwestern Quang Tri Province, Republic of Vietnam (South Vietnam), between 21 January and 9 July 1968 during the Vietnam War. The combatants were elements of the United States (U.S.) III Marine Amphibious Force (III MAF), elements of the South Vietnamese Army of the Republic of Vietnam (ARVN) and two to three division-size elements of the People's Army of Vietnam (PAVN - also referred to as the North Vietnamese Army (NVA)). The American command in South Vietnam gave the defense of the base the nickname Operation Scotland.