Battle of Khe Sanh

Khe Sanh
Battle of Khe Sanh
	Part of the Vietnam War
	; A burning fuel dump after a mortar attack at Khe Sanh
Date	21 January – 9 July 1968
Location	16°39′19.6″N 106°43′42.9″E / 16.655444°N 106.728583°E; Khe Sanh Combat Base (Khe Sanh), Quảng Trị Province, Republic of Vietnam – UTM Grid XD 852-418
Result	Both sides claim victory: Siege partially relieved in April; North Vietnamese Army gained control of the Khe Sanh region after the American withdrawal on 9 July; Termination of the McNamara Line. North Vietnamese lines of communication were extended farther into South Vietnam.;
Belligerents
United States ; South Vietnam; Kingdom of Laos	Viet Cong ; North Vietnam ; Pathet Lao
Commanders and leaders
William Westmoreland ; Rathvon M. Tompkins ; David E. Lownds	Võ Nguyên Giáp ; Trần Quý Hai ; Lê Quang Đạo
Strength
~45,000 in total; ~6,000 Marines at the Combat Base of Khe Sanh; Operation Pegasus: ~20,000 (1st Air Cavalry and Marine units); Operation Arc Light and operation Niagara: U.S. Air Forces	~40,000 in total, in which: Siege at Khe Sanh: ~17,200 (304th and 308th Division); Defense at Route 9: ~16,900 (320th and 324th Division); 30 light tanks PT-76;
Casualties and losses
U.S. losses:; At Khe Sanh:; 274 killed; 2,541 wounded (not including ARVN Ranger, RF/PF, Forward Operation Base 3 – US Army and Royal Laotian Army losses); Operation Scotland I and Operation Pegasus:; 730 killed; 2,642 wounded,; 7 missing; Operation Scotland II (15 April 1968 – July 1968):; 485 killed; 2,396 wounded; USAF:; 5 ~ 20 killed, wounded unknown; Operation Charlie for the final evacuation:; At least 11 marines killed, wounded unknown During aerial resupply:; 1 KC-130, 3 C-123; ARVN losses: 229 killed, 436 wounded (not including CIDG, RF/PF and SOG losses); CIDG losses: 1,000 – 1,500 killed or missing, at least 250 captured (in Lang Vei), wounded unknown; Kingdom of Laos: Unknown. Total (21 January – 9 July): 12,000+ casualties; (2,800–3,500 killed, 9,000+ wounded, 7 missing, 250+ captured); North Vietnamese claim: ~11,900 killed or wounded (including about 9,000 American soldiers); 197 aircraft, 78 tanks, 46 cannons, 50 ammunition depots destroyed	Unknown (1,602 bodies were counted, US official public estimated 10,000–15,000 KIA, but MACV's secret report estimated 5,550 killed as of 31 March 1968); North Vietnamese figures:; 1,436 wounded (before mid-March); 2,469 KIA (from 20 January until 20 July 1968).

The Battle of Khe Sanh (21 January – 9 July 1968) was conducted in the Khe Sanh area of northwestern Quảng Trị Province, Republic of Vietnam (South Vietnam), during the Vietnam War. The main US forces defending Khe Sanh Combat Base (KSCB) were two regiments of the United States Marine Corps supported by elements from the United States Army, the United States Air Force (USAF) and the RAAF, as well as a small number of Army of the Republic of Vietnam (ARVN) troops. These were pitted against two to three divisional-size elements of the North Vietnamese People's Army of Vietnam (PAVN).

The US command in Saigon initially believed that combat operations around KSCB during 1967 were part of a series of minor PAVN offensives in the border regions, but when the PAVN was found to be moving major forces into the area, the U.S. force at KSCB was reinforced. On 21 January 1968, the PAVN surrounded and besieged the Marine base. In the ensuing five months, KSCB and the hilltop outposts around it were subjected to daily PAVN artillery, mortar, and rocket attacks, and several infantry assaults. More than 274 U.S. troops were killed and more than 2,500 wounded.

To support the Marine base, the USAF undertook Operation Niagara, a massive aerial bombardment campaign. In the first three months, over 114,810 tons of bombs were dropped by US & allied aircraft and over 158,900 artillery rounds were fired in defense of the base. U.S forces lost one KC-130, three C-123 and 35 helicopters, while 23 aircraft and 123 helicopters were damaged. Throughout the campaign, US forces used the latest technology to locate and target PAVN forces, and logistical innovations to support the base.

In March 1968, a combined Marine–Army/ARVN task force launched an overland relief expedition (Operation Pegasus) that eventually broke through to the Marines at Khe Sanh.

American commanders considered the defense of Khe Sanh a success, but shortly after the siege was lifted, decided to dismantle the base rather than risk similar battles in the future. On 19 June 1968, the evacuation and destruction of KSCB began. Amid heavy shelling, the Marines attempted to salvage what they could before destroying what remained as they were evacuated. Minor attacks continued before the base was officially closed on 5 July. Marines remained around Hill 689, though, and fighting in the vicinity continued until 11 July until they were finally withdrawn, bringing the battle to a close.

In the aftermath, the North Vietnamese proclaimed a victory at Khe Sanh, while US forces claimed that they had withdrawn, as the base was no longer required. Historians have observed that the Battle of Khe Sanh may have distracted American and South Vietnamese attention from the buildup of Viet Cong (VC) forces in the south before the early 1968 Tet Offensive. Nevertheless, the US commander during the battle, General William Westmoreland, maintained that the true intention of Tet was to distract forces from Khe Sanh.