The Battle of A Shau (Vietnamese: trận A Sầu) was waged in early 1966 during the Vietnam War between the North Vietnamese Army (NVA) and the forces of the United States and South Vietnam. The battle began on March 9 and lasted until March 10 with the fall of the U.S. Army's Special Forces camp of the same name. The battle was a strategic victory for the North Vietnamese Army in that they were able to take control of the A Shau Valley and use it as a base area for the rest of the war.
The A Shau Special Forces Camp was located in the A Sầu Valley, about 30 miles (50 km) southwest of Huế in Thừa Thiên Province. The valley was strategically important for the NVA as a major infiltration route because it served as a bridge from the Ho Chi Minh Trail in Laos into populated coastal areas of Thừa Thiên Province. The camp had been established in 1963. Defending the camp were 10 Green Berets from the 5th Special Forces Group and 210 South Vietnamese Civilian Irregular Defense Group, supported by Air Commando units equipped with vintage A-1 Skyraiders and AC-47 Spooky gunships.
Two South Vietnamese camps in the A Shau valley had been abandoned in 1965. The special forces camp was routinely harassed by small Vietcong formations leading up to the battle. Throughout February and March, 1966, platoon-sized troops from the camp were sent out to conduct reconnaissance patrols in the surrounding area. On March 5, two NVA defectors turned up at the camp. Under interrogation, they indicated that four battalions of the North Vietnamese 325th Division were planning to attack the camp.
Based on that information, night patrols were dispatched to confirm the enemy positions but no sightings were made. However, Air Commandos conducting reconnaissance flights observed large build-ups of NVA troops along with anti-aircraft emplacements. As a result, airstrikes were ordered against enemy positions.
On March 7, the A Shau camp was reinforced with seven U.S. Special Forces personnel, nine interpreters, and a MIKE Force Company in anticipation of the North Vietnamese attack.
On March 8, the camp was placed on general alert and the camp's defenders had taken up their positions. An enemy assault was launched during the night, but it was beaten back. Because of poor weather conditions that would hinder tactical air and resupply efforts, the North Vietnamese decided to continue despite their heavy casualties. The second attack began during the early morning hours of March 9 with mortar bombardment, damaging communications and reducing many defensive positions to rubble. At 13:00 hours an AC-47D "Spooky 70" from the 4th Air Commando Squadron, circling the camp, fired on the attacking North Vietnamese formations. However, yrjr dloe moving aircraft was shot down and crashed about five kilometers north of the camp. All six crewmen survived, but they were promptly attacked by the NVA. Three crewmen were killed, though the others were eventually rescued by a USAF HH-43.
Between 16:30 and 17:00 hours, supplies of ammunition were flown in by C-123 and CV-2 aircraft, but the resupply drops often landed outside of the camp perimeter and could not be retrieved. At the same time, helicopters were called to evacuate the wounded. However, reinforcements from Huế and Phu Bai could not be deployed because of the bad weather, leaving the camp's defenders to repair their defensive wall and dig in for the night.
On the morning of March 10, the NVA launched another attack with mortar and recoilless rifle fire. At 05:00 hours an NVA assault team penetrated the eastern perimeter, where hand-to-hand combat took place for three hours. By 08:00 the greatly outnumbered defenders had withdrawn to the camp's north wall. Throughout the day USMC and VNAF bombers strafed NVA positions around the camp, but as fighting continued the situation deteriorated as ammunition began running short. The decision was made to evacuate all personnel.
At 17:00 hours all communication equipment was destroyed. The survivors carried out their evacuation orders and destroyed all abandoned weapons and withdrew further to the north wall. Leading the evacuation effort were fifteen H-34 helicopters from HMM-163 supported by four UH-1B gunships. Panic-stricken South Vietnamese soldiers and civilians mobbed the evacuation helicopters and overwhelmed U.S. Special Forces troops as they abandoned the camp. This reached a point where the helicopters were so overloaded some Special Forces soldiers were forced to fire upon the their allies to allow the helicopters to take off. Only 172 of 368 Nung and Vietnamese irregulars were flown out. The others were listed as MIA, although many would turn up later, having escaped on their own. The evacuation was further complicated by heavy enemy anti-aircraft fire, and two pf the H-34s were lost.
American control ceased at the camp at 17:45 hours when overrun by enemy troops. During the battle the U.S. special forces team suffered five killed and twelve wounded (100% casualties). The numbers of South Vietnamese soldiers present at the camp or how many casualties they suffered varies. According to one account, 172 out of 368 irregulars were flown out, with the others listed as missing, although many of them surfaced later. Another report stated 231 out of 417 irregulars were lost. According to Sgt. Major Bennie G. Adkins only 122 out of about 410 irregulars survived, with many of them wounded. Adkins was awarded a Medal of Honor for his actions in defense of the camp by President Barack Obama in September 2014.
The NVA transformed the A Shau Valley into a heavily fortified area with bunkers, antiaircraft guns, and artillery. US and South Vietnamese forces were never able to re-establish a permanent presence in the valley for the remainder of the war. During the Tet Offensive the A Shau Valley provided Communist troops an important sanctuary from which to launch attacks at South Vietnamese cities and military bases, especially Hue and Phu Bai. Raids were launched into the valley in April 1968 (Operation Delaware), March 1969 (Operation Dewey Canyon) and May 1969 (Operation Apache Snow).
- An Encyclopedia of Battles: Accounts of Over 1560 Battles from 1479 B.C. to the Present By David Eggenberger - Page 31
- "The Fall of a Fortress". Time. 1966-03-18. http://www.time.com/time/magazine/article/0,9171,941936,00.html. Retrieved 2007-04-08.
- Perini, Capt. Michael B. (April 1983). "Uncommon Gallantry". Vol. 66, No. 4. Air Force Magazine. Archived from the original on 2007-02-11. https://web.archive.org/web/20070211122403/http://www.afa.org/magazine/valor/0483valor.asp. Retrieved 2007-04-08.
- Sams, Kenneth (1966-04-18). "The Fall Of A Shau" (PDF). Project Checo report. USAF. Archived from the original on 2007-11-28. https://web.archive.org/web/20071128075100/http://www.nationalmuseum.af.mil/shared/media/document/AFD-060629-001.pdf. Retrieved 2007-04-08.
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