Operation Toan Thang 1/71

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Operation Toan Thang 1/71
Part of the Vietnam War

Map of Operation Toan Thang 1/71
Date4 February – June 1971
Location
Highway 7, Cambodia
Result indecisive
Belligerents
 South Vietnam
 Khmer Republic
 United States		  North Vietnam
Khmer Rouge
Commanders and leaders
Đỗ Cao Trí
Nguyễn Văn Minh
Units involved
South Vietnam 5th Infantry Division
Casualties and losses
South Vietnam 133+ killed, 130 missing
United States 2 killed		 South Vietnamese body count: 1,143 killed

Operation Toan Thang 1/71 was an operation during the Vietnam War conducted by South Vietnamese forces from 4 February to June 1971 to reopen Highway 7 in Cambodia and destroy North Vietnamese bases.

Background

With the pro-American

Cooper-Church Amendment banning U.S. ground troops from entering Cambodia, American support would be limited to Army and Air Force aviation overhead and Army artillery based in South Vietnam.[1]
: 47 

The goal of Operation Toan Thang 1/71 was to destroy PAVN and

Mekong River town of Kratié.[1]
: 47–9 

Operation

On 4 February 1971, Lieutenant general

Snuol and Chup, and for the most part the PAVN avoided contact.[1]
: 47 

On 26 February, however, advancing ARVN troops came under fire from a line of bunkers concealed in a tree line.

OH-6A scout helicopter to engage the enemy with grenades and machine guns. After destroying five bunkers he came under fire from an antiaircraft machine gun. Despite having expended his grenades, he engaged the position with machine guns and knocked it out. When a second antiaircraft gun opened fire, hitting his helicopter, he attacked again before directing an Army helicopter gunship to destroy the target. He was then engaged by a third antiaircraft gun. Ignoring his own safety he flew his damaged and now virtually unarmed helicopter toward the enemy to mark the target for the gunships when enemy fire caused his helicopter to explode, killing him and his copilot. Swanson was posthumously awarded the Distinguished Service Cross for his actions that day. In 2002 the award was upgraded to the Medal of Honor.[1]
: 49 

Trí had been killed in a helicopter accident on 23 February and his successor, General Nguyễn Văn Minh, was less aggressive. This combined with the South Vietnamese focus on Operation Lam Son 719, which had begun on 8 February but had bogged down, meant that the momentum behind the incursion had started to wane.[1]: 49 

The first large engagement occurred on 17 March, when two South Vietnamese task forces, supported by U.S. Army gunships, engaged a PAVN regiment in a two-day battle in the Chup Plantation, a major enemy depot. Two weeks later, a South Vietnamese task force defeated an enemy battalion in a five-hour battle near Suong.[1]: 49 

After some additional activity around Snuol during the first week in April, the PAVN went to ground. Thereafter, ARVN troops focused on uprooting enemy supply caches. The operation remained relatively uneventful until the PAVN learned that the South Vietnamese planned to withdraw a task force of the 5th Infantry Division from Snuol in late May. The Battle of Snuol began on 25 May when three PAVN regiments massed to cut Highway 13, thereby trapping the task force in Snuol. An ARVN task force was sent up Highway 13 to relieve the besieged the task force, but the operation became a rout and the ARVN suffered heavy losses of men and equipment as they withdrew.[1]: 49  The battle rendered the ARVN 5th Division combat ineffective in the estimation of its American advisers.[2]: 338–9  According to II Field Force, Vietnam commander Michael S. Davison, the 5th Division troops were close to mutiny.[3]: 478 

Aftermath

Operation Toan Thang 1/71 ended in June. The senior U.S. adviser to III Corps, Major general Jack J. Wagstaff, declared the results mixed. The operation had imposed heavy casualties on the PAVN, tying down three enemy divisions away from South Vietnam and further bolstering the Khmer Republic. On the other hand, the South Vietnamese had not done significant damage to the enemy's logistical network and the debacle at Snuol once again raised questions about the progress of Vietnamization.[1]: 50 

References

  1. ^
    ISBN 9781088823613.Public Domain This article incorporates text from this source, which is in the public domain
    .
  2. ISBN 9780160771187.Public Domain This article incorporates text from this source, which is in the public domain
    .
  3. ISBN 978-1518612619.Public Domain This article incorporates text from this source, which is in the public domain
    .

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