reflection paper
The CIA and the "Secret" War in Laos:
The Battle for Skyline Ridge, 1971-72
by
William M. Leary
University of Georgia
Between December 1971 and May 1972, one of the great
battles of the Vietnam War took place in northern Laos when
over 20 battalions of the North Vietnamese army assaulted
positions held by some 10,000 Lao, Thai, and Hmong
defenders. Yet few people ever have heard of the Battle for
Skyline Ridge. Press coverage of the engagement was slight,
and public interest - at least in the United States - was
minimal. Historians of the Vietnam War also have ignored
this major battle, perhaps because it had limited impact on
the outcome of the war. Still, the Battle for Skyline Ridge
deserves to be remembered. The culmination of efforts by
the U.S. Central Intelligence Agency to direct a major and
lengthy war in Asia, it was an impressive - if temporary -
victory for the anti-Communist forces in Laos.
By 1971, the no-longer-secret war in Laos had been
going on for more than a decade.! Prior to the Geneva
Agreements of July 1962 on the neutrality of Laos, United
States military personnel had taken the leading role in
training and advising indigenous forces. Indeed, under the
terms of the Geneva Agreements, which called for the removal
of all foreign military personnel from Laos, the United
States withdrew 666 individuals. 2 The Central Intelligence
Agency, by contrast, had only nine paramilitary specialists,
assisted by 99 Thai Special Forces-type members of the
Police Aerial Reconnaissance Unit (PARU), assigned to train
and support Hmong tribal forces in the northern part of
1
Laos, which constituted the Agency's main program in the
country.3
When fighting broke out again in Laos in 1963 and 1964,
officials in Washington considered reintroducing a sizable
number of U.S. military personnel into the country to train
and advise the Royal Lao Army. Leonard Unger, the American
ambassador in Vientiane, opposed the idea. "As will be
recalled," he cabled the State Department in June 1964,
"experience in "61-62 with MAAG [Military Assistance and
Advisory Group] was not a happy one. MAAG and White Star
[Special Forces] teams did a highly commendable job under
difficult circumstances, but their experience demonstrated
that it is almost impossible to put any real spine into FAR
[Forces Armee Royale or Royal Lao Army].'"
Acting upon Unger's recommendation, Washington decided
to maintain the thin fiction of the Geneva Agreements -
which the Communist Pathet Lao and their North Vietnamese
backers had ignored but never formallY repudiated. The
ineffective Royal Lao Army would be given a minimum of
support. At the same time, the Central Intelligence Agency
was assigned responsibility to train, advise, and support
Hmong forces in northern Laos, and to recruit, train,
advise, and support volunteer Lao troops in the southern
part of the country. The CIA presence in Laos was to remain
small. As Unger's successor, William L. Sullivan,
explained, Unger was a "most reluctant militarist and took
2
care in establishing the paramilitary operation to be sure
it was designed to be reversible. Consequently, only a
small portion of it was actually present in Laos, and all
its supporting elements were housed in Thailand, under a
secret agreement with the Thai."5
Between 1964 and 1967, the CIA-supported Hmong army in
northern Laos, the main area of conflict, fought a highly
successful guerrilla war against a mixed force of Pathet Lao
and North Vietnamese troops. The high point of this phase
of the war came in the summer of 1967. Royal Lao Army and
Hmong units had blunted the enemy's dry season offensive of
winter-spring 1966-67, causing local CIA officials to issue
an optimistic appraisal of the situation in Laos. Hmong
forces, a CIA Intelligence Information Cable argued, had
gained the upper hand in the war: "They now have the option
of attempting a permanent change in the tactical balance of
power in North Laos."6
Unfortunately, the North Vietnamese recognized the
danger. Beginning in January 1968, Hanoi introduced major
new forces into Laos and relegated the Pathet Lao to a
support role for the remainder of the war. By March, the
CIA estimated that there were 35,000 North Vietnamese
regular troops in Laos - and the number would continue to
grow. 1
The fighting in Laos took on a more conventional
character, characterized by engagements between large units.
3
This type of warfare took a heavy toll on the Hmong. In the
first five months of 1968, the Hmong lost over 1,000 men,
including many top commanders. A recruiting drive turned up
only 300 replacements, and most of these were under the age
of 14 or over 35. 8 And the situation only grew worse. By
April 1970, the CIA acknowledged that Hmong losses had
crippled the effectiveness of the tribal forces. The Hmong
had fought well, a CIA estimate observed, but "they are
battle weary and their losses over the past year or so have
exceeded their capability to replace them."9
Lao authorities, recognizing the declining strength of
the Hmong, in June 1970 asked the Thai government to supply
regular troops to fend off the North Vietnamese. While the
Thais were anxious to stop the North Vietnamese short of the
Mekong River, they were reluctant to send regular army units
into Laos and thereby take a more prominent role in the war.
Instead, officials in Bangkok agreed to recruit "volunteer"
battalions which would be led by regular army officers and
NCOs. The cost of the units would be underwritten by the
U. S. government .10
On the eve of the Battle for Skyline Ridge, 1971-72,
the CIA's presence had grown far beyond Ambassador Unger's
minimalist objectives due to the expanding nature of the
war, but it still remained small, especially inside Laos.
According to one knowledgeable CIA official, the total
number of people at Udorn and inside Laos - "including all
4
support personnel, the contract wives, and some military
detailee technicians" - never exceeded 225. This included
some 50 case officers. 11
At the top of the command structure for the conduct of
the war stood Ambassador G. McMurtrie Godley. By
presidential directive, the ambassador was responsible for
"overall direction, coordination and supervision" of all
military operations in Laos. Godley, by all accounts,
brought a great deal of interest and enthusiasm to the job.
He presided over daily "operations meetings" at the embassy,
lasting from 9 A.M. to 10:30 A.M. (or later), at which he
received detailed briefings from military and intelligence
personnel on developments in the war over the preceding 24
hours. 12
Godley delegated responsibility for the tactical
conduct of the war to his CIA station chief, B. Hugh Tovar.
An experienced and respected intelligence officer who had
served with the Office of Strategic Services during World
War II and had been a member of a small OSS team that had
operated in Laos at the end of the war, Tovar preferred to
exert a general supervision over military affairs and allow
his subordinates to handle the operational details .13
In conformity with Ambassador Unger's original
organizational scheme, the primary CIA headquarters for the
conduct of the war - in effect Tovar's "executive agent" -
was not in Laos but in Thailand." Located in a two-story
5
block building adjacent to an aircraft parking ramp at Udorn
Royal Thai Air Force Base, the 4802d Joint Liaison
Detachment was the CIA's command center for military
operations in Laos. In charge of the 4802d was Lloyd "Pat"
Landry, a paramilitary specialist who had been involved in
Laotian affairs for more than a decade. "As a boss," one
junior officer recalled, "he had a reputation of being blunt
and having the capability to make hard decisions and
sticking to them."15
Landry's chief of operations was George C. Morton, a
retired Green Beret colonel who earlier had "laid the
foundations of the Special Forces effort in Vietnam. "16
Other CIA officers oversaw air operations, photographic and
communications intelligence, order-of-battle assessments,
and coordinated military operations and requirements with
7/13 Air Force headquarters, also located at Udorn. 17
Finally, Landry had excellent rapport with General Vitoon
Yasawatdi ("Dhep"), commander of "Headquarters 333," the
Thai organiz~tion in charge of their forces in Laos.18
Lines of authority ran from Udorn to CIA regional
headquarters in Laos at Pakse, Savannakhet, Long Tieng,
Luang Prabang, and Nam Lieu. The most important of the five
subunits was Long Tieng, the major logistical and
operational base in Military Region II, and headquarters of
Major General Vang Pao, Hmong tribal leader and commander of
the Region. 19 Joseph R. Johnson, the CIA's chief of unit at
6
-----_._------- - -- -- -------
Long Tieng, oversaw some twenty or so paramilitary and
support personnel who advised Hmong and Thai units. He also
directed the activities of Air America, a CIA-owned airline,
and Continental Air Services, a contract air carrier. His
chief of operations, Jerome A. Daniels, who had the
confidence of Vang Pao, was responsible for coordinating
military activities in the Region, especially those relating
to the Hmong. Major Jesse E. Scott commanded the U.S. Air
Force's Air Operations Center at Long Tieng and (nominally)
the ten U.S. Air Force forward air controllers, who used the
radio call sign "Raven."W
The United States in 1971 was in the process of
withdrawing from Vietnam. President Richard M. Nixon had
proclaimed in 1969 that Asia boys should fight Asian wars.
By the end of 1970, U.S. troop strength was down to 280,000,
and declining rapidly. With regard to Laos - where Asia
boys were fighting Asian wars - the Nixon administration
adopted a defensive posture. Like Kennedy before him, Nixon
wanted a neutral Laos that would serve as a buffer between
pro-Western Thailand and the aggressive intentions of North
Vietnam and China. However, it was clear by 1971 that
Laotian neutrality would have to be achieved without a major
commitment of U.S. power.
Early in 1971, the Royal Lao government ordered General
Vang Pao to seize as much territory as possible in Military
Region II before Congressional restraints reduced available
7
u.s. air sorties to 32 per day after July 1. Vang Pao
launched a major offensive in June. Effectively using his
air mobility and tactical air resources, the Hmong leader
captured the Plaine des Jarres (PDJ), a strategic area that
had changed hands several times in the past. In order to
blunt the anticipated enemy dry season offensive, which
usually began in December or January, it was decided to
establish five major artillery strong points on the PDJ.
Manned and defended by Thai troops, these mutually
supporting bases were intended to attract the enemy's
attention. The NVA would assault these fixed positions -
and be destroyed by artillery fire and tactical air power.21
As the time neared for the expected enemy offensive,
intelligence reports coming into the CIA operations center
at Udorn grew ominous. Hanoi, it had learned, had appointed
one of their senior army commanders - General Le Truong Tan
- to direct the year's dry season offensive. Overhead
photography revealed a growing number of troops and supplies
moving along Route 6 toward the PDJ, including large covered
trailers. Although B-52s and "fast movers" were targeted
against the road, the traffic continued. U
Nonethel3ss, there a general feeling of confidence that
the enemy offensive could be stopped. James E. Parker, Jr.,
a newly arrived intelligence officer who had been assigned
as desk officer for Military Region II, inspected the Thai
artillery bases in early December and came away impressed.
8
The firebases, with their 105mm and 155mm guns, were placed
so that each base could be protected by artillery fire from
two or three adjacent positions. Visiting the northern-most
position, Parker received an optimistic appraisal of the
situation from its Thai commander. The position, he said,
was "impregnable," with its three inter-connected rings of
firing positions, bunkers, well-fortified mortar pits,
barbed and concertina wire, and mines. Local artillery, he
boasted, was available within seconds; flareships, gunships,
and tactical air support were on call.~
December 15 and 16 saw only light ground activity on
the PDJ. On December 17, smoke enveloped the area during
the daylight hours, cutting short resupply flights to the
Thai strong points. At 1835 hours that evening, all hell
broke loose. Using for the first time in Laos Soviet-made
long-range 130mm guns that far outranged the Thai artillery
(16 miles versus 9 miles), the NVA hit all Thai positions
simultaneously. Tank-supported infantry then broke through
the defensive rings around the bases. By the next morning,
the northern-most position had fallen, and the other bases
were under heavy pressure. U
As the enemy attack continued during December 18 and
19, tactical air support - upon which the entire defensive
scheme had been premised - was noticeable by its absence.
With Vang Pao and the Thais screaming for air support, the
CIA urged 7/13 Air Force at Udorn to supply the desperately
9
needed sorties - all to no avail. Finally, Ambassador
Godley contacted 7th Air Force headquarters in Saigon. He
was told that all available U.S. aircraft were involved in
search-and-rescue operations.~
On the afternoon of December 18, an F-4 supporting the
Thai positions on the PDJ had been shot down by a MIG-21,
the first air-to-air loss in Laos. Two other F-4s engaged
the MIG as it fled toward the North Vietnamese border.
Caught up in the chase, the F-4s ran out of fuel, and the
four crew members ejected. The following day, another F-4
had been brought down east of the PDJ by anti-aircraft fire.
The Air Force had launched a massive SAR operation for these
downed crew members, which drew off the tactical air
resources that otherwise would have gone into the battle on
the PDJ. U
Time ran out for the Thai defenders. By the morning of
December 20, all artillery strong points had fallen. The
surviving Thai troops headed south in disarray, pursued by
the NVA. Continental Air Services pilot Edward Dearborn,
who had been airdropping supplies to the Thai positions,
reported the scene: "By 1300 local, our efforts were
confined to picking up the wounded and survivors of the fire
bases. Most of them were working their way to LS-15 [Ban
Nal. A pitiful sight from two weeks before. The majority
were shell shocked and most were suffering from wounds,
exposure, or shock in one form or another.· H
10
The North Vietnamese pushed into the mountainous
terrain south of the PDJ and headed toward Long Tieng, the
last bastion between the enemy and the Mekong River. While
Hmong and Thai defenders strengthened their positions along
Skyline Ridge, the key terrain feature that overlooked the
Long Tieng valley, tactical airstrikes - once again
available - slowed but could not stop the enemy advance. 28
At 1530 hours on December 31, 1971, North Vietnamese
gunners opened fire on Long Tieng. The shelling, which
included rounds from the dreaded 130mm guns, continued
intermittently throughout the night, causing heavy damage to
installations in the valley.
The ground assault against Skyline began a few days
later. An estimated 19,000 North Vietnamese troops were
thrown into the battle. They were opposed by a mixed force
of some 10,000 Hmong, Thai, and Lao defenders. The NVA
offensive went well at first. In hard fighting, the enemy
captured several key positions along Skyline Ridge and took
control of Sam Thong, the former headquarters of the USAID
mission in northern Laos, which was linked to Long Tieng by
a mountainous road.
The CIA brought in Thai reinforcements, together with
several 1,200-man units of irregular troops from southern
Laos, considered to be the government's elite force. By
late January, the CIA-led Lao troops, in bitter - often
hand-to-hand - fighting, had retaken Skyline from the North
11
Vietnamese, at a cost of one-third to one-half of their
effective strength. Thanks to their efforts, Long Tieng was
placed at least temporarily out of the danger - if not out
of range of the 130mm guns.!9
While the Air Force hunted the well camouflaged
artillery pieces - and found several - the defenders of Long
Tieng dug in deeper and waited for the next assault. It
took nearly two months for the North Vietnamese - their
supply lines harassed by B-52s, tactical air strikes, and
Hmong ambushes - to bring up sufficient material to stage
the expected attack.
In mid-March 1972, the NVA once again tried to push the
defenders off Skyline. This time, the enemy planned to use
heavy T-34 tanks, bringing them in along the road from Sam
Thong. Michael E. Ingham, CIA officer in change of Thai
forces in Military Region II, had learned of the enemy's
intentions from a NVA prisoner. He had his men place anti-
tank mines along the road in front of their main defensive
position. As it turned out, NVA sappers removed most of the
mines, except for the two closest to the Thai position. On
March 30, two T-34 lead tanks hit these mines and were
immobilized, effectively blocking the road to Long Tieng. 30
Heavy fighting along Skyline Ridge continued into the
last days of April, with key positions changing hands
several times. Unable to obtain their objective, the NVA
finally removed a division from the area and sent it to
12
support the Easter offensive against South Vietnam. On
May 19, President Nixon congratulated Ambassador Godley:
"The Communist dry season in Laos has been blunted this
year, largely through the tireless efforts of your Missions.
You have done a tremendous job under difficult conditions. ,,31
Ambassador Godley certainly deserved President Nixon's
accolades. His CIA-led forces had scored an impressive
victory over a capable and determined enemy. For a time,
U.S. officials believed that this military success might
contribute to the creation of a neutral Laos. For example,
CIA Director William Colby, in awarding an Intelligence Star
to one of the case officers who directed the Lao irregular
forces, commented in February 1974: "I think you made a
major contribution not only to the battle, but also to the
successful outcome in Laos. That was a very sticky period.
And the situation as Long Tieng was considered a critical
one." The recent conclusion of a ceasefire agreement and
"steps toward achieving some kind of coalition government,"
Col by concluded, "is in good part a credit to your work." 32
Unfortunately, the coalition government proved only an brief
interlude. The Communists soon took control of the country.
The CIA, nonetheless, remained proud of its efforts in
Laos. As CIA Director Richard Helms later observed: "This
was a major operation for the agency. . It took
manpower, it took specially-qualified manpower, it was
13
dangerous, it was difficult." The CIA, he contended, "did a
superb job. "33
Helms had a point. Criticized following the Bay of
Pigs fiasco in 1961 for its inability to conduct large-scale
military operations, the CIA directed the war in Laos for
more than a decade - and fought the North Vietnamese and
Pathet Lao to a standstill. The cost - at least in American
lives - had been small: eight CIA case officers were killed
during the war, four in aircraft accidents and four as a
result of enemy fire. M
Lao, Thai, and Hmong losses, of course, were much
higher. The Hmong suffered most, both during and after the
war. As Douglas S. Blaufarb, CIA station chief in
Vientiane, 1962-64, has observed, whatever the Hmong gained
by associating with the United States, "it certainly was not
worth the high price they paid." But, Blaufarb wisely adds,
criticism of the U.S. alliance with the Hmong involves the
application of "a lavish hindsight without regard to the
realities of the time it was undertaken."~
In any event, the anti-communist forces in Laos won the
Battle for Skyline Ridge. However, as in Vietnam, victory
on the battlefield did not mean much in the end. It merely
delayed the final outcome of the war.
14
Notes
1. The best general accounts of the war are Charles A. Stevenson, The Under of Nowhere: American Policy toward Laos since 1954 (Boston, 1972), and Arthur J. Dommen, Conflict in Laos: The Politics of Neutralization (revised edition, New York, 1971).
2. North Vietnam, in contrast, formally withdrew only 40 of its estimated 6,000 troops in Laos at the time of the cease- fire. Statement of Ambassador G. McMurtrie Godley, July 22, 1971, in U.S. Senate, Committee on Armed Services, Hearings on Fiscal Year 1972 Authorization for Military Procurement, 92nd Congress, 1st Session (Washington, 1971), p. 4270. See also Norman B. Hannah, The Key to Failure: Laos and the Vietnam War (Lanham, MD, 1987), p. 59.
3. Edward G. Lansdale to Maxwell D. Taylor, "Resources for Unconventional Warfare, S.E. Asia," n.d. [July 1961), The Pentagon Papers (New York Times edition, New York, 1971), pp. 130-38.
4. Unger to the Secretary of State, June 15, 1964, Declassified Documents Reference System (DDRS), 1989: 2100.
5. William L. Sullivan, Obbligato (New York, 1984), p. 210.
6. Central Intelligence Agency, Intelligence Information Cable IN 19395, July 29, 1967, DDRS, 1992: 3089.
7. Central Intelligence Agency, Special National Intelligence Estimate 58-68, March 21, 1968, DDRS, 1989: 1865.
8. Robert Shaplen, Time Out of Hand: Revolution and Reaction in Southeast Asia (New York, 1968), pp. 347-48.
9. Central Intelligence Agency, Office of National Estimates, "Stocktaking in Indochina," April 17, 1970, DDRS, 1977: 270C. The Hmong continued to take severe casualties. In 1971, they suffered 2,259 killed and 5,775 wounded. See Arnold R. Isaacs, Without Honor: Defeat in Vietnam and Cambodia (Baltimore, 1983), p. 169.
10. Theodore Shackley, The Third Option (New York, 1981), pp. 122-24.
11. Information from a retired intelligence officer who was in a position to have a accurate count of CIA presence in Thailand and Laos. William Colby, Lost Victory (Chicago,
15
1989), p. 198, states: "The total number of CIA personnel who support this effort was between 300 and 400." This number seems to be too high.
12. A profile of Godley appeared in the New York Times, July 12, 1973. See also the informative staff report of a visit to Laos by James G. Lowenstein and Richard M. Moose: U.S. Senate, Subcommittee on U.S. Security Agreements and Commitments Abroad of the Committee on Foreign Relations, Laos: April 1971, 92nd Congress, 1st Session (Washington, 1971), p. 2.
13. Interview with B. Hugh Tovar, March 13, 1992.
14. As noted by Senate staffers Lowenstein and Moose, following a visit to Southeast Asia in January 1972, Udorn Royal Thai Air Force Base was "the most important operational military nerve center in Thailand." U.S. Senate, Subcommittee on U.S. Security Agreements and Commitments Abroad of the Committee on Foreign Relations, Thailand, Laos, and Cambodia: January 1972, 92nd Congress, 2nd Session (Washington, 1972), p. 12. My portrait of CIA activities is drawn from interviews and correspondence with several retired intellgence officers.
15. James E. Parker, Jr., to the author, December 1992.
16. Shelby L. Stanton, Green Berets at War: U.S. Army Special Forces in Southeast Asia, 1956-1975 (Novato, CA, 1985), pp. 48, 52-53, 62.
17. On U.S. Air Force activities in Laos, see Earl H. Tilford, Jr., Setup: What the Air Force Did in Vietnam and Why (Maxwell Air Force Base, AL, 1991).
18. General Vitoon Yasawatdi's activities are discussed in Rueng Yote Chantrakiri, The Thoughts and Memories of the Man Known as Dhep 333 (Bangkok, 1992). I am indebted to the Office of the Vice President for Research at the University of Georgia for a grant to have this volume translated from the Thai by Kris Petcharawises.
19. On Vang Pao's background, see Keith Quincy, HmonS: History of a People (Cheney, WA, 1988), pp. 160-94.
20. V. H. Gallacher and Hugh N. Ahmann interview with Jesse E. Scott, April 6, 1973, U.S. Air Force Historical Research Center (USAFHRC), Maxwell AFB, AL. See also Christopher Robbins, The Ravens (New York, 1987).
16
21. William W. Lofgren and Richard R. Sexton, "Air War in Northern Laos, 1 April - 30 November 1971," U.S. Air Force CHECO Report, June 22, 1973, USAFHRC; Jane Hamilton-Merritt, Tragic Mountains: The Hmong. the Americans, and the Secret War for Laos. 1942-1992 (Bloomington, IN, 1993), pp. 266-76.
22. Kenneth J. Conboy, "Vietnam and Laos: of Military Cooperation," Indochina Report, 1989): 1-15.
23. Parker to the author, December 1992.
A Recent History 19 (April-June
24. The progress of the battle can be followed in the daily situation reports by Air America operations managers Thomas H. Sullivan and Jerome S. Connor, located in the Sullivan collection, Air America Archives, University of Texas at Dallas.
25. Tovar interview, March 13, 1992.
26. New York Times, December 21 and 22, 1971.
27. Edwin B. Dearborn, "Notes on PDJ Battle, December 17- 20," December 23, 1971. Copy courtesy of Edwin B. Dearborn.
28. Major General Alton D. Slay, chief of staff for operations at 7th Air Force, End-of-Tour Report, USAFHRC, is more optimistic in appraising the important role of the Air Force.
29. Thailand. Laos. and Cambodia: January 1972, p. 18.
30. Michael E. Ingham to the author, January 7, 1993.
31. A copy of Nixon's message is in the microfilm collection of Air America records in the author's possession.
32. Colby presentation to Elias P. Chavez, February 8, 1974. Copy of presentation courtesy of Elias P. Chavez.
33. Ted Gittinger interview with Richard Helms, September 16, 1981, Oral History Program, Lyndon Baines Johnson Presidential Library, Austin, TX.
34. Two of the four intelligence officers who were killed in aircraft accidents - Louis O'Jibway and Edward Johnson - died when an Air America helicopter flew into the Mekong River on August 20, 1965, while en route from Nam Lieu, Laos, to Udorn, Thailand. The "Book of Honor" at CIA Headquarters incorrectly lists O'Jibway's death as 1966. In addition to the eight case officers, three CIA employees,
17
serving as Air America crew members, were killed in the crash of C-46 on August 13, 1961, and are memoralized by three stars, without names, in the "Book of Honor."
35. Douglas Blaufarb, CounterinsurBency Era (New York, 1977), p. 168.
18