Operation Niagara

Operation Niagara
Part of the Vietnam War
B-52 during Operation Arc Light
Date January–March 1968 Location Khe Sanh Combat Base, Quang Tri Province, Republic of Vietnam Result U.S estimate: 9,800–13,000 PAVN killed [1]
Belligerents
United States	North Vietnam

Operation Niagara was a U.S. Seventh Air Force close air support campaign carried out from January through March 1968, during the Vietnam War. Its purpose was to serve as an aerial umbrella for the defense of the U.S. Marine Corps Khe Sanh Combat Base on the Khe Sanh Plateau, in western Quang Tri Province of the Republic of Vietnam. The base was under siege by an estimated three-divisional force of the People's Army of Vietnam (PAVN).