Tchepone Operation

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Tchepone Operation
Part of Laotian Civil War; Vietnam War
Date19 October – 13 November 1970
Location
Tchepone; Moung Phine
Result Unsuccessful Royalist attempt to capture Muong Phalane
Belligerents
 Kingdom of Laos
Supported by
 United States		  North Vietnam
Supported by:
 Soviet Union
 People's Republic of China
Units involved
Green Battalion
Red Bravo Battalion
Brown Battalion
Red Battalion
Orange Battalion
Black Battalion
U.S. Air Force
Air America
 Group 559
Strength
Battalion-size ~50,000
Casualties and losses
91 killed
178 wounded or missing in action		 Heavy

The Tchepone Operation (19 October – 13 November 1970) was an interdiction campaign by the

guerrillas retreated to base under cover of tactical air strikes by the Royal Lao Air Force and U.S. Air Force that inflicted heavy casualties on the PAVN, including close air support delivered within 20 meters of the Royalists. Analysis of the results of the Tchepone Operation convinced the CIA that regimental
operations should replace multi-battalion ones.

Overview

Beginning in 1946, France began fighting the communist

Annamese Cordillera in southern Laos became the haven for a communist logistics network, the Ho Chi Minh trail. The communist war effort in South Vietnam depended on that supply route.[3] In 1961, as the Battle of Vientiane upended the Royal Lao Government (RLG), Central Intelligence Agency espionage agent James William Lair designed a paramilitary program to train a guerrilla army of hill tribesmen to defend it.[4]

Background

In

Operation Duck in March 1969 led to Operation Junction City Jr., followed by Operation Maeng Da. The neighboring CIA Pakse Unit in Military Region 4 also had two active offensive operations attacking the Trail, Operation Honorable Dragon and Operation Diamond Arrow. Deeming these offensives against the Trail promising, the CIA's Savannakhet Unit planned to follow up with another attack called simply the Tchepone Operation. Given that they hired, fired, fed, supplied, and paid their guerrillas personally, they felt them reliable enough for further offensive operations.[6]

Campaign

The Ho Chi Minh trail, 1970. Tchepone, the operation's objective, is in the upper third of the map just right of center. The U.S. Khe Sanh Combat Base opposed Tchepone from across the Vietnamese border.

A preliminary sweep of the

guerrillas. It began as two columns of three battalions each, departing from a Royalist base at Moung Phalane on 19 October 1970. Green, Brown, and Red Bravo battalions moved southeast under the senior battalion commander's control; their objective was the communist-held village of Moung Phine. The second column aimed Orange, Red, and Black battalions to the east at Tchepone.[8]

Soon after departure, the two columns lost contact with one another. The first column headed toward Moung Phine and lingered on its outskirts, just barely contacting the communist garrison. One CIA case officer claimed the senior battalion commander was distracted by longing for his 17 year old bride. At any rate, Muong Phine remained communist.[9]

The second column did much better. In less than a week, it had penetrated over 50 kilometers toward Tchepone. They crossed Route 23 and bumbled into a hidden communist truck park, complete with repair shops and a headquarters. A surprised small communist garrison slipped away, as the guerrillas torched the complex. Pressing onwards, by 31 October the head of the second column had reached Route 914; Tchepone now lay only 13 kilometers down Route 9. However, on 1 November, a

medevaced by helicopter.[10]

That night, the Royalist guerrillas managed to disengage somewhat from their attackers. On 4 November, U.S. Air Force (USAF)

A-1 Skyraiders simultaneously hit the PAVN force. Freed of their wounded, the Royalists withdrew.[10]

While a rearguard of reconnaissance teams mined Route 9 to within five kilometers of Tchepone, the main body of the Royalist force withdrew into triple canopy jungle. After a famished five days without resupply drops, the Royalists dug and occupied a defensive position atop a bare knoll near Route 23. The PAVN pursuers launched a heedless assault; RLAF and USAF strikes inflicted heavy casualties on them. The position held and the PAVN receded. With the pursuit quashed, in mid-November the Royalist second column resumed its withdrawal from whence it came, Moung Phalane. The first column was ordered northward to aid them; instead it beat the second column back to Moung Phalane. The Tchepone Operation ended on 13 November.[10]

Aftermath

During 16 days of combat, the Royalist forces aimed at Moung Phine had suffered 22 dead but claimed killing 123 communists. The other Royalist column had lost 44 dead and 52 wounded of 322 troops engaged before being withdrawn.[11]

With one battalion written off as ineffective, and two others having fled battle, somehow the Royalists clung to PS 22. In mid-December, they reinforced the site with a RLA battalion that arrived just as the communists launched a three-battalion attack. Despite being subjected to a vicious crossfire, the communists managed to overrun one outpost before withdrawing under heavy tactical air and artillery bombardment. Their casualties were estimated at 200 killed. Royalist casualties were 25 dead, 126 wounded or missing in action.[12]

For lessons learned, the CIA's Savannakhet Unit fired the insubordinate battalion commander. It also decided to try forming a regimental structure to manage multi-battalion operations.[10]

Notes

  1. ^ Castle, pp. 7–12, 15–18.
  2. ^ Dommen, pp. 30–34.
  3. ^ Castle, pp. 107 -110.
  4. ^ Conboy, Morrison, pp. 61–66.
  5. ^ Conboy, Morrison, p. 268.
  6. ^ Conboy, Morrison, pp. 217–218, 268–271.
  7. ^ Ahern, pp. 365, 367.
  8. ^ Conboy, Morrison, p. 271.
  9. ^ Conboy, Morrison, pp. 271–272.
  10. ^ a b c d Conboy, Morrison, p. 272.
  11. ^ Ahern, p. 370.
  12. ^ Ahern, p. 371.

References

  • Castle, Timothy N. (1993). At War in the Shadow of Vietnam: U.S. Military Aid to the Royal Lao Government 1955–1975.
    ISBN 0-231-07977-X
    .
  • Conboy, Kenneth and James Morrison (1995). Shadow War: The CIA's Secret War in Laos. Paladin Press.
    ISBN 0-87364-825-0
    .
  • Dommen, Arthur J., Chapter 1. Historical Setting. Savada, Andrea Matles, ed. (1995). Laos a country study. Federal Research Division, Library of Congress.
    ISBN 0-84440-832-8
    .


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