|Laotian Civil War|
|Part of the Vietnam War, the Indochina Wars, and the Cold War|
Kingdom of Laos|
Republic of Vietnam
Democratic Republic of Vietnam
|Casualties and losses|
|~15,000 Royal Lao Army||
3,000+ North Vietnamese troops|
Unknown Pathet Lao casualties
|20,000-70,000 total dead|
The Laotian Civil War (1953–75) was fought between the Communist Pathet Lao (including many North Vietnamese of Lao ancestry) and the Royal Lao Government in which both the political rightists and leftists received heavy external support for a proxy war from the global Cold War superpowers. Among United States Central Intelligence Agency Special Activities Division US and Hmong veterans of the conflict, it is known as the Secret War.
The Kingdom of Laos was a covert theatre for battle for the other belligerents during the Vietnam War. The Franco–Lao Treaty of Amity and Association signed 22 October 1953, transferred remaining French powers – except control of military affairs – to the Royal Lao Government – which did not include any representatives from the Lao Issara anti-colonial armed nationalist movement — and otherwise establishing Laos as an independent member of the French Union.
The following years were marked by a rivalry between the neutralists under Prince Souvanna Phouma, the right wing under Prince Boun Oum of Champassak, and the left-wing Lao Patriotic Front under Prince Souphanouvong and future Prime Minister Kaysone Phomvihane. A number of attempts were made to establish coalition governments, and a "tri-coalition" government was finally seated in Vientiane.
The fighting in Laos involved the North Vietnamese Army, U.S., Thai, and South Vietnamese forces directly and through irregular proxies in a battle for control over the Laotian Panhandle. The North Vietnamese Army occupied the area for use as the Ho Chi Minh Trail supply corridor and staging area for offensives into South Vietnam. There was a second major theatre of action on and near the northern Plain of Jars.
The North Vietnamese and Pathet Lao emerged victorious in 1975, as part of the general communist victory in Indochina that year.
The Geneva Conference established Laotian neutrality. The People's Army of Vietnam (PAVN), however, continued to operate in both northern and southeastern Laos. There were repeated attempts from 1954 onward to force the North Vietnamese out of Laos but, regardless of any agreements or concessions, Hanoi had no intention of abandoning the country or its Laotian communist allies.
The North Vietnamese established the Ho Chi Minh Trail in the southeast of Laos and paralleling the Vietnamese border. The Trail was designed for North Vietnamese troops and supplies to infiltrate the Republic of Vietnam and to aid the National Liberation Front.
The North Vietnamese had a sizable military effort in northern Laos, while sponsoring and maintaining an indigenous communist rebellion, the Pathet Lao, to put pressure on the Royal Lao Government.
The U.S. Central Intelligence Agency (CIA), to disrupt these operations in northern Laos without direct military involvement, responded by training a guerrilla force of some thirty thousand Laotian hill tribesmen, mostly local Hmong tribesmen along with the Mien and Khmu, led by Royal Lao Army General Vang Pao, a Hmong military leader. This army, supported by the CIA proprietary airline Air America, Thailand, the Royal Lao Air Force, and a covert air operation directed by the United States ambassador to Laos, fought the People's Army of Vietnam, the National Liberation Front (NLF), and their Pathet Lao allies to a seesaw stalemate, greatly aiding U.S. interests in the war in Vietnam.
The status of the war in the north throughout the year generally depended on the weather. As the dry season started, in November or December, so did North Vietnamese military operations, as fresh troops and supplies flowed down out of North Vietnam on newly passable routes, either down from Dien Bien Phu, across Phong Saly Province on all weather highways, or on Route 7 through Ban Ban, Laos on the northeast corner of the Plain of Jars. The CIA's Clandestine Army would give way, harrying the PAVN and Pathet Lao as they retreated; Raven FACs would direct massive air strikes against the communists by USAF jets and RLAF T-28s to prevent the capture of the Laotian capitals of Vientiane and Luang Prabang. When the rainy season six months later rendered North Vietnamese supply lines inoperable, the Vietnamese communists would recede toward Vietnam.
The war in the southeastern panhandle against the Ho Chi Minh Trail was primarily a massive air interdiction program by the USAF and United States Navy because political constraints kept the trail safe from ground assault from South Vietnam. Raven FACs also directed air strikes here in the southeast; other Forward Air Controllers from South Vietnam, such as Covey FACs from the 20th Tactical Air Support Squadron and Nail FACs from the 23rd Tactical Air Support Squadron, also directed strikes. Other air strikes were planned ahead. Overall coordination of the air campaign was directed by an Airborne Command and Control Center.
The existence of the conflict in Laos was sometimes reported in the U.S., and described in press reports as the CIA's "Secret War in Laos" because details were largely unavailable due to official government denials that the war existed. The denials were seen as necessary considering that the North Vietnamese government and the U.S. had both signed agreements specifying the neutrality of Laos. U.S. involvement was considered necessary because the DRV had effectively conquered a large part of the country and was equally obfuscating its role in Laos. Despite these denials, however, the Civil War was actually the largest U.S. covert operation prior to the Afghan-Soviet War, with areas of Laos controlled by North Vietnam subjected to years of intense US aerial bombardment, representing the heaviest bombing campaign in history. Overshadowing it all was the struggle of the Cold War, with the United States' policy of the containment of communism and the policies of the People's Republic of China and the Soviet Union of spreading communism via subversion and insurgency.
Chronology of the Laotian Civil War
1945: Prelude to war
The end of World War II left Laos in political chaos. The French, who had been displaced from their protectorate by the Japanese, wanted to resume control of Laos, and sponsored guerrilla forces to regain control. The Japanese had proclaimed Laos independent even as they lost the war. Though King Sisavang Vong thought Laos was too small for independence he had proclaimed the end of the French protectorate status though he favored the French return. He let it be known he would accept independence if it should occur. Thus there was a nascent movement for independence amid the turmoil.
Underlying all this was a strong undercurrent of Vietnamese involvement. Sixty percent of the population of Laos's six urban areas were Vietnamese, with the Vietnamese holding key positions in the civil bureaucracies and the police. Since the 1930s the Indochinese Communist Party had established wholly Vietnamese cells in Laos.
Prince Phetsarath, as Viceroy and Prime Minister, established the Lao royal treasury account with the Indochinese treasury in Hanoi in an attempt to establish a functional economy.
French commandos parachuted into Laos beginning in 1945 to organize guerrilla forces. By November, they had formed the guerrillas into four light infantry battalions of the newly founded French Union Army. The officers and sergeants of the new Lao battalions were French.
In October, 1945, a Lao nationalist movement called Lao Issara (Free Laos) was founded as a new government for Laos. Among Lao Issara's prominent members were three European-educated princes; brothers Phetsarath Rattanavongsa and Souvanna Phouma, and their half brother, Souphanouvong. The former became the titular founder of Lao Issara. Souphanouvong became commander in chief, as well as minister of foreign affairs. Souvanna Phouma became minister of public works.
Independence began with an uprising of the Vietnamese residents in Savannakhet. Prince Souphanouvong took command of a band of partisans armed with weapons looted from the local militia. The band moved northward to the administrative capitol of Vientiane with its provisional revolutionary government. Souphanouvong then urged the signing of a military cooperation treaty with the newly established North Vietnamese communist government, which was done. The French military mission was escorted out of Laos into Thailand by a contingent of Chinese troops.
However, the Lao Issara never gained more than a tenuous hold on the entirety of Laos. Roving Viet Minh detachments ruled the northeast, but the Viet Minh declined to aid the new government. Chinese troops, including the Chinese Nationalist 93rd Division, occupied cities as far south as Luang Prabang. The French-sponsored guerrillas controlled the southern provinces of Savannakhet and Khammouan. Prince Boun Oum, who sympathized with the French, occupied the rest of the southern panhandle.
For these, and other reasons, Lao Issara could not hold the country against the returning French colonial government and its troops. The French negotiated a Chinese withdrawal from Laos prior to their own return, removing them from the field.
1946: The French return; the Vietnamese arrive
In January 1946, the French began the reconquest of Laos by sweeping the Bolovens Plateau. They had organized six battalions of light infantry, to which they added a minor force of French troops.
On 21 March 1946, Souphanouvong and his largely Vietnamese force fought the French Union troops at Savannakhet, to no avail; the attackers mustered paratroopers, artillery, armored cars, and Spitfire fighter-bombers. The Lao Issara troops suffered 700 killed. They fled, leaving behind 250 bodies and 150 prisoners.
On 24 April, the French dropped a paratroop battalion on the outskirts of Vientiane, and took the city without resistance. On 9 May, they repeated their airborne tactics with a drop outside Luang Prabang. This was coupled with a thrust to the north by the French forces, from Vientiane to Luang Prabang, that chased Phetsarath and the Lao Issara ministers out of Laos. The king reinstated the French rule by repudiating his actions that had been pressured from him by the Japanese, Chinese, and Lao Issara.
By September, 1946, the Lao Issara had been defeated and had fled to exile in Bangkok. One of its splinter groups, led by Thao O Anourack fled to Hanoi. There he allied himself with two men trusted by Ho Chi Minh; Nouhak Phoumsavan was Vietnamese, and Kaysone Phomvihan was Vietnamese-Lao. These three men founded the military movement that would become the Pathet Lao (Land of Laos).
Thao O Anourack established the initial Pathet Lao base at Con Cuong, Vietnam. Kaysone Phomvihan organized the first detachment of the new force. By the end of 1946, at least 500 Viet Minh agents had crossed into Laos.
1947–52: Build-up of forces
On 11 May 1947, King Sisavang Vong granted a constitution declaring Laos an independent nation within the French Union. This began the building of a new government over the next few years, including the establishment of a national army, the Armée Nationale Laotienne, which was the first iteration of the Royal Lao Army.
The nascent army was plagued by lack of Lao leadership, and its weaponry was a hodgepodge. Thus the new Armée Nationale Laotienne consisted of light infantry battalions officered by the French. There was one paratroop battalion included. The French began training Lao officers and non-commissioned officers even as they continued to lead and train the new army.
In opposition, the Viet Minh raised a subsidiary revolutionary movement, the Pathet Lao, starting with an initial guerrilla band of 25 in January, 1949.
In October, 1949, the exiled Lao Issara dissolved and the three royal brothers each chose a separate destiny.
Phetsarath Rattanavongsa chose to remain in Bangkok. His stay was temporary. He would once again become the viceroy of Laos.
Souvanna Phouma chose to return to Laos via an amnesty, believing that the Lao would soon free themselves. In 1951 he became Prime Minister for the first time and held that office until 1954.
Souphanouvong, who had spent seven years in Nha Trang during his sixteen years in Vietnam, met Ho Chi Minh, and acquired a Vietnamese wife while in Vietnam, solicited Viet Minh aid in founding a guerrilla force.
In August, 1950, Souphanouvong had joined the Viet Minh in their headquarters north of Hanoi, Vietnam, and become the head of the Pathet Lao, along with its political arm dubbed Neo Lao Hak Sat (Lao Patriotic Front). This was an attempt to give a false front of authority to the Lao communist movement by claiming to represent a united non-partisan effort. Two of its most important founders were members of the Indochinese Communist Party, which advocated overthrow of the monarchy as well as expulsion of the French. This got Laos involved in the First Indochina War but it started off mainly against the French.
On December 1950, the Pentalateral Mutual Defense Assistance Pact was signed by the United States, France, Vietnam, Cambodia, and Laos; it was a tool to transfer American military aid to the French war effort in Indochina. This year also marked the infiltration of at least 5,000 more Viet Minh into Laos.
In February, 1951, the Indochinese Communist Party decided to split in three to sponsor war against the French in Cambodia and Laos, along with the war in Vietnam. The new Laotian branch consisted of 2,091 members, but included only 31 Lao.
Also, by 1951, the Pathet Lao had mustered sufficient trained troops to join the Viet Minh in military operations.
By October, 1951, the Armée Nationale Laotienne had raised two more battalions of infantry and begun training a battalion of paratroops. The ANL ended the year with a strength of 5,091.
1953–54: First North Vietnamese invasion & French defeat
By April, 1953, the Viet Minh's People's Army of Vietnam (PAVN) invaded northeastern Laos with 40,000 troops commanded by General Vo Nguyen Giap; included was a token force of 2,000 Pathet Lao led by Souphanouvong. The objective of the two-pronged invasion was the capture of the royal capital of Luang Prabang and of the Plain of Jars. In November 9 the Pathet Lao began its conflict with the Kingdom of Laos thus beginning the civil war and technically the Second Indochina War while the First Indochina War was still going.
They were opposed by 10,000 Lao troops stiffened by 3,000 French regulars.
The North Vietnamese invaders succeeded in conquering the border provinces of Phong Saly and Sam Neua, which were adjacent to northern Vietnam and on the northeastern verge of the Plain of Jars. They then moved aside to allow the ragtag Pathet Lao force with its mismatched scrounged equipment to occupy the captured ground, and Souphanouvong moved the Pathet Lao headquarters into Sam Neua City on 19 April.
The other strike, moving from Dien Bien Phu and aimed downriver at Luang Prabang, was thwarted by oncoming monsoons and dogged resistance by the French.
In December, the French Union Army, as part of its attempt to protect Laos from the PAVN, recaptured the Dien Bien Phu valley.
In January, the PAVN launched two assaults on Laos. One thrust crossed the top of the panhandle to the Mekong River town of Thakhek. The other was again aimed at Luang Prabang. Both were thwarted in a month.
These were diversions to the famous Battle of Dien Bien Phu, which took place from March through May within ten kilometers of the Lao border, on the lines of communication into the Plain of Jars. The ruggedness of the karst mountains of northern Laos channels movement into a few canyons; small watercraft could move from Dien Bien Phu down to the Nam Ou, and thence directly downriver to Luang Prabang, or they cross into the PDJ via Ban Ban.
A notable event was the use of Civil Air Transport, which later morphed into Air America, in a covert operation to fly supplies to the embattled French in Dien Bien Phu. The PAVN also launched a diversionary thrust at Seno, Laos aimed at cutting away the panhandle from the main body of Laos. This thrust was foiled by paratroopers from the French Union's Army of the Republic of Vietnam.
When the relief troops didn't lift the siege in time, the bastion of Dien Bien Phu fell. One of the troopers in the relief column marching from Luang Prabang was a young Hmong named Vang Pao.
The French loss at Dien Bien Phu marked the end of the First Indochina War; the French were driven to negotiate for peace. On 20 July, the Agreement on the Cessation of Hostilities in Laos was signed, ending French rule. Two months later, the North Vietnamese established a support group for Pathet Lao forces at Ban Nameo, well within northeastern Laos.
The Agreement radically changed the geography of Indochina. As part of the change the Communists now succeeded to rule of the northern half of Vietnam. Laos became totally independent of France. The French turned over its Lao French Union troops to the new nation; as a residual effort, it kept two bases in Laos and supplied advisors to the new Lao military.
The Royal Lao government military also received its first aircraft from the French in 1954; nine Morane-Saulnier MS-500 Criquets were supplied for support and medevac.
Because the Pathet Lao had shown no willingness to fight, and the 25,000 man Royal Lao Army was incapable of resisting the PAVN, an attempt was made to coax the Pathet Lao into a coalition with the Royal Lao Government.
In August 1, 1954 the French army withdrew from Laos declaring independence for the nation alongside North Vietnam, South Vietnam and Cambodia which ended the First Indochina War but the Laotian Civil War was still ongoing.
1955–58: The lull
In January, 1955, French advisors began training the first Lao aviation force. Later that year, Thailand would supply Sikorsky H-19 helicopters and volunteer pilots to the Lao military. The Thais also trained thirty Lao officers in weapons use at Hua Hin, Thailand.
In early 1955, a United States Operation Mission was set up in Laos. Its primary purpose was supply of military defense materials to the Royal Lao Government; 80% of its budget was dedicated to this purpose. The United States paid 100% of the Lao military budget. However, the embassy staff was not up to monitoring this program. There was an obvious need for a Military Assistance Advisory Group; however, the United States had signed a treaty that expressly forbade such.
U.S. President Dwight D. Eisenhower's solution was to establish the Program Evaluations Office (PEO) in December, 1955, staffed by American civilians with prior military experience and headed up by retired Brigadier General Rothwell Brown. These civilians were given U.S. State Department status. However, they did not work strictly for the State Department. On military matters, they reported to the Commander in Chief Pacific Command, with information supplied to the American ambassador; on non-military matters, they reported directly to the ambassador.
1955 was also notable for the despatch of Royal Lao Government troops to Sam Neua and Phong Saly, which was much resented by the Pathet Lao. As a result of this resentment, and disputes about electoral procedures, the Laotian communists boycotted that year's national elections.
On 21 March 1956, Souvanna Phouma began his second term as prime minister. He opened a dialogue with his brother, Souphanouvong. In August, they announced the intention of declaring a ceasefire and reintegrating the Pathet Lao and their occupied territory into the government. However, the Pathet Lao claimed the right to administer the provinces they occupied.
At the same time, they and their North Vietnamese backers ran a massive recruitment campaign, with the aim of forming nine battalions of troops. Many of the new recruits were sent into North Vietnam for schooling and training. This led to United States concern that the Royal Lao Army would be inadequately equipped and trained because there was only one small French military mission working with the RLA.
In February, 1957, the Program Evaluations Office personnel began supplying training materials to the French Military Mission that was charged with training the Royal Lao Army. The rationale was that improved training would better fit the army with defending its country. As part of this process, the United States even took over paying the Royal Lao Army's salaries.
Beginning in March, 1957, the Royal Lao Army began shuttling arms to Hmong guerrillas, to enable them to fight on the side of the RLA.
In November, 1957, a coalition government incorporating the Pathet Lao was finally established. Using the slogan, "one vote to the right, one vote to the left to prevent civil war," pro-communist parties received one-third of the popular vote and won 13 of 21 contested seats in the elections of 4 May 1958. With these additional seats, the left controlled a total of 16 seats in the 59 member National Assembly. Combined with independents, this was enough to deny Souvanna's center right, neutralist coalition the two-thirds majority it needed to form a government. With parliament deadlocked, the U.S. suspended aid in June to force a devaluation of the overpriced currency, which was leading to the abuse of U.S. aid. The National Assembly responded by confirming a right-wing government led by Phuy Xananikôn in August. This government included four members of the U.S.-backed Committee for the Defence of the National Interest (none of them National Assembly members). Three more unelected CDNI members were added in December, when Phuy received emergency powers to govern without the National Assembly.
In November, 1958, Brigadier General John A. Heintges reviewed the PEO. He promptly replaced General Brown, and forged a new agreement with the Lao and the French. Integral to the new agreement was the displacement of the French military trainers by Americans. As a result, PEO expanded over twentyfold. Included in the expansion were 149 Special Forces on temporary duty, and 103 Filipino military veterans working for a newly formed front company named Eastern Construction Company in Laos.
1959: Second North Vietnamese invasion
On 15 May 1959, the People's Army of Vietnam established Group 559; this unit was charged with the logistics of moving the necessities of war from North Vietnam to the South. Its foremost feat was building and maintaining the Ho Chi Minh trail down the eastern spine of Laos. Eventually, this transportation network would power the Vietnamese communists to victory. It would have to survive a relentless air campaign comparable to any interdiction bombing in World War II.
Also in May, the long awaited integration of 1,500 Pathet Lao troops into the national army was scheduled. The U.S. embassy told the Lao government that it would be difficult to gain congressional approval of aid to Laos with communists serving in the army. The Pathet Lao stalled.
Under orders from Souphanouvong, the Pathet Lao battalions refused to be integrated into the Royal Lao Army. Souphanouvong was then arrested and imprisoned, along with his aides. The two Pathet Lao battalions, one after the other, escaped during the night with no shots fired, taking their equipment, families, and domestic animals with them. On 23 May, Souphanouvong and his companions also escaped unscathed.
In July, U.S. Special Forces Mobile Training Teams from the 77th Special Forces Group, working under the code name Hotfoot, began training the Royal Laotian army. The Green Berets were attached to the Programs Evaluation Office, and like other PEO employees, were nominal civilians. However, even in civilian dress, having traded their green berets for sun helmets, they still had a military appearance.
The RLA was being formed into Groupement Mobiles—regimental-sized units of three battalions. The training teams were assigned one per GM, with some battalions also meriting a team.
On 28 July, PAVN units attacked all along the North Vietnamese-Lao border. As they took ground from the Royal Lao Army, they moved in Pathet Lao as occupation troops. Poor battle performance by the RLA seemed to verify the need for further training; the RLA outnumbered the attackers, but still gave ground.
Also in July, the American embassy began to contract for aerial resupply for RLA troops, hiring Robert Brongersma and his Beech 18.
In September, Group 100 was succeeded by Group 959; the North Vietnamese were upgrading their military mission to the Pathet Lao, just as the Americans had expanded PEO. Both sides were raising larger client armies, in hopes the Lao would fight.
1960: The neutralist coup
On 9 August 1960, Captain Kong Le and his Special Forces-trained Neutralist paratroop battalion were able to seize control of the administrative capital of Vientiane in a virtually bloodless coup, while Prime Minister Tiao Samsanith, government officials, and military leaders met in the royal capital, Luang Prabang. His stated aim for the coup was an end to fighting in Laos, the end of foreign interference in his country, an end to the consequent corruption caused by foreign aid, and better treatment for his soldiers. However, Kong Le's coup did not end opposition to him, and there was a scramble among unit commanders to choose up sides. If one was not pro-coup, then he had the further decision to make as to whom he would back to counter the coup. The front runner was General Phoumi Nosavan, first cousins with the prime minister of Thailand, Field Marshal Sarit Thanarat. With the Central Intelligence Agency's support, Sarit set up a covert Thai military advisory group, called Kaw Taw. Kaw Taw, which would support the counter-coup that was mounted; it supplied artillery, artillerymen, and advisers to Phoumi's forces. It also committed the CIA-sponsored Thai Police Aerial Reinforcement Unit to operations within Laos.
Immediately after Kong Le's coup, Thailand began an embargo via land blockade, cutting off the main source of imported goods for Vientiane. The United States Secretary of State, Christian Herter, made it clear that the United States supported the “legitimate government under the King's direction.” The United States supported the pro-Western government of Prime Minister Tiao Samsanith.
The Neutralist forces in Vientiane organized the Executive Committee of the High Command of the Revolution as the interim government in Laos the following day. General Phoumi Nosavan, stated on 10 August that he planned to retake Vientiane by force. The United States Ambassador to Laos, Winthrop G. Brown, responded to General Phoumi by stating that the United States supported a restoration of peace “through quick and decisive action.”
PEO had turned its support to General Phoumi. With the help of Air America and covert aid from Thailand, the general and his troops moved north toward Vientiane from Savannakhet in southern Laos, in November.
The Soviet Union began a military air bridge into Vientiane in early December; it was characterized as the largest Soviet airlift since World War II. This air bridge flew in PAVN artillery and gunners to reinforce the Neutralist/Pathet Lao coalition.
On their side, the United States flew four B-26 Invader bombers from Taiwan into Takhli Royal Thai Air Force Base, poised to strike into Laos. They were later joined by an additional eight B26s. With a dozen guns, half a dozen rockets, and a napalm canister apiece, they were a potent threat, but were never used.
On 13 December, Phoumi's army began a three day bombardment of Vientiane. Five hundred civilians and seventeen of Kong Le's paratroopers were killed by the shellfire. On the 14th, a U.S. carrier task force went on alert, and the Second Airborne Brigade stood by to seize selected Laotian airfields. The U.S. was poised to rescue its paramilitary and diplomatic advisers in Laos.
Kong Le and his Neutralists finally withdrew northward to the Plain of Jars. Their withdrawal was covered by artillery fire from the PAVN 105 mm howitzers rushed in from Hanoi, and supported by Soviet airdrops of crucial supplies of rations, munitions, and radios. In the retreat, Kong Le picked up 400 recruits, swelling his force to 1,200 men.
Phoumi's coup was thus successful, but the end result was the alliance of the Neutralists with the Pathet Lao on 23 December. As 1960 ended, the obscure little nation of Laos had become an arena of confrontation for the world's superpowers.
1961: Superpowers' involvement deepens
On 3 January, the Royal Laotian Air Force received its first counter-insurgency aircraft, American-built T-6 Texans, via the Royal Thai Air Force. These four reconfigured trainers were armed with two .30 caliber machine guns and five inch rockets, and could carry 100 pound bombs. Four previously trained Lao pilots undertook transition training in Thailand; on 9 January, the pilots flew the new RLAF fighter-bombers to Vientiane. Two days later, they flew their first combat sorties, against PAVN and Pathet Lao covering Kong Le's retreat into the Plain of Jars.
Russian Soviet air supply continued, bringing in heavy weapons to supplement the light arms previously delivered. On 7 January, the North Vietnamese presence was escalated by an additional four battalions; two of the battalions immediately moved to the point of conflict, on Route 7, which connected to Vientiane. A third PAVN battalion moved into action at Tha Thom, south of the PDJ. On 15 January, the entire 925th Independent Brigade of the PAVN had crossed into Laos to reinforce the Pathet Lao/Neutralist coalition.
This led to counter-escalation, as the United States began airdropping arms to a force of 7,000 Hmong guerrillas later in the month. Air America was also bequeathed four H-34 helicopters from the U.S. Navy.
By the beginning of February, the first four volunteer pilots from the Royal Thai Air Force arrived to fly four more T-6s supplied to the Royal Laotian Air Force. The Thai pilots had been officially discharged from the RTAF, and held no official position in the RLAF. The growth of the RLAF would be nullified by its casualties, as five of the T-6s had been lost in action by the end of March.
The incoming Kennedy administration found itself pitched immediately into the Laotian crisis. An inter-agency task force founded in early February began a two month study of possible American responses to the Laotian war. The most drastic alternative they envisioned was a 60,000 man commitment of American ground troops in southern Laos, with a possible use of nuclear weapons.
Less drastic options were elected. Even as the French ended their training mission, the American training efforts ramped up. Sixteen H-34 helicopters were transferred from the U.S. Marine Corps to Air America; maintenance facilities were established in Udorn in far northern Thailand, a few miles south of Vientiane.
On 9 March, the communists captured the only road junction between Luang Prabang and Vientiane. When RLA troops were ordered to counterattack and retake the junction, they dropped their weapons and ran. Special Forces Team Moon was assigned as advisers to the RLA unit.
On 22 April 1961, Team Moon was overrun. Two sergeants were killed, and team leader Captain Walter H. Moon was captured; he was later executed while trying to escape captivity. Another sergeant was released sixteen months later.
The B26s had been scheduled to strike at Kong Le, but the strike was stayed by an event on the far side of the world. The Bay of Pigs Invasion failed, and that failure gave pause to U.S. actions in Laos. A ceasefire was sought. Simultaneously, the Programs Evaluation Office shed its civilian guise and went above ground to become a Military Advisory Assistance Group. Emblematic of the change, the Hotfoot teams donned their U.S. uniforms and became White Star Mobile Training Teams.
The truce supposedly went into effect the first week of May, but was repeatedly breached by the communists. With the Royal Lao Army ineffective, the Hmong guerrillas were left as the only opposition to the communists. In early June, they were forced from their beleaguered position at Ban Padong by an artillery barrage followed by a ground assault. Under command of General Vang Pao, they fell back to Long Tieng.
The U.S. Central Intelligence Agency had begun secretly recruiting Lao montagnards into 100 man militia companies. Riflemen trained for these militias would receive eight weeks basic training, then serve several months in their militia. Once they had that experience, which often included their first combat, they were further recruited into battalions of irregular troops called Special Guerrilla Units. The battalions were filled out along ethnic lines, most being Hmong, but some being Yao (Iu-Mien) or Lao Theung (Lao Saetern). SGUs, once formed up, underwent three further months training by Thai officers and sergeants in Phitsanuloke, Thailand.
By summer, the CIA had mustered 9,000 hill tribesmen into the ranks of the Armée Clandestine. It was aided by 9 CIA agents, 9 Special Forces augmenters, and 99 Thai Special Forces troopers from the Police Aerial Resupply Unit.
By autumn, the future course of American involvement was set. Paramilitary trainers would train guerrilla units, with resupply coming via airdrops, and specialized short takeoff and landing aircraft using makeshift dirt airstrips. Other trainers would try to mold the Royalist regulars into a fighting force. Fighter-bombers would serve as flying artillery to blast the communist forces into retreat or submission.
In December, the Royalists decided to assert control over the provincial capitol of Nam Tha, which was on the northwestern border, almost in southern China. GMs 11 and 18 were stationed there, and soon came under pressure from the communists.
1962: Disaster and a new government
By February, the Royal Lao Government's hold on Nam Tha seemed tenuous enough that it was reinforced by the paratroopers of GM 15. That gave a numerical edge to the defenders and should have guaranteed Nam Tha's retention. The presence of armed American Special Forces advisors should have stiffened them with military expertise.
In May, a PAVN assault broke the RLG forces and routed them. The Royalist soldiers fled southward across the entirety of northwestern Laos into Thailand, a retreat of over a hundred miles.
Faced with this fiasco, the U.S. and other foreign powers pressured the RLG into a coalition with the Pathet Lao and Kong Le's Forces Armee Neutrale. This technically fulfilled the Geneva Agreements on Laos and triggered the treaty requirement that foreign military technicians be withdrawn from Laos by October. The United States disbanded its Military Assistance Advisory Group and withdrew its military mission. The Vietnamese communists did not; they repatriated only a token 40 technicians out of an estimated 2,000.
July 1962 saw the field tests of Pilatus Porter Short Takeoff and Landing aircraft by Bird and Sons. The original two Porters' performance was degraded by heat and height robbing power from engine performance. One of the Porters crashed in December, killing all on board.
Several companies of hill tribes irregulars were sent to Hua Hin, Thailand for training.
By the middle of the year, the Pathet Lao and Neutralists had begun to squabble with one another. The neutralist group was soon divided between right-leaning neutralists (headed by Kong Le) and left-leaning neutralists (headed by Quinim Polsena and Colonel Deuane Sunnalath). On February 12, 1963 Kong Le's second in command, Colonel Ketsana, was assassinated. Shortly afterwards Quinim Polsena and his deputy were also assassinated. The neutralist camp was split with some going over to the Pathēt Lao. Fighting between the Pathet Lao and government troops soon resumed.
Vang Pao gathered three SGU battalions into Groupement Mobile 21 and spearheaded a drive into Sam Neua against the Pathet Lao. His offensive was resupplied by supplies airdropped by the civilian aircraft of Air America and Bird and Sons.
In the meantime, the United States re-established a Military Assistance Advisory Group to support its efforts in Laos, basing it in Bangkok. The Requirements Office of the U.S. Embassy in Vientiane was manned by civilians and monitored the need for U.S. military aid to Laos.
In August, the Royal Laotian Air Force received its first four T-28 Trojans that had been adapted for counter-insurgency warfare.
The irregular companies trained the previous year in Thailand were now formed into a battalion called SGU 1. Irregular forces proliferated throughout the country. In Military Regions 3 and 4, action, intelligence, and road watch teams infiltrated the Ho Chi Minh Trail.
In December, Vang Pao was promoted to Brigadier General by King Sisavong.
Between 1963 and 1965, 18-20,000 Meo tribemen were victims of genocide by Pathet Lao forces.
1964–65: Escalation and US Air Force involvement
On 1 April, the USAF set up Waterpump, which was a pilot training program in Udorn Royal Thai Air Force Base to supply Lao pilots for the Royal Laotian Air Force. The RLAF also began augmenting its ranks with Thai volunteer pilots in 1964.
Run by a 41 man team from Detachment 6 of the 1st Air Commando Wing, this facility was an end run around the treaty obligation that forbade training in Laos. Besides training pilots, Waterpump encouraged cooperation between the RLAF and the Royal Thai Air Force. It was also tasked, as a last resort, to augment the RLAF to counter a renewed Communist offensive in Laos.
In Laos itself, there was an effort to train Laotians as forward air guides. Meantime, the Butterfly forward air control program began.
Even as the air commandos established themselves in Udorn and Laos, several Lao generals attempted a coup in Vientiane. With the capital in turmoil, the Communists on the Plain of Jars attacked and overran the Royalist and Neutralist positions. The United States then released the necessary ordnance for the RLAF to bomb Communist encampments, beginning on 18 May.
On 19 May, the United States Air Force began flying mid and low-level missions over the renewed fighting, under the code name Yankee Team. They also began reconnaissance missions over the Laotian panhandle to obtain target information on men and material being moved into South Vietnam over the Ho Chi Minh Trail. By this time, the footpaths on the trail had been enlarged to truck roads, with smaller paths for bicycles and walking. The Trail had become the major artery for use by North Vietnam to infiltrate South Vietnam.
The summer of 1964 was marked by a successful attack by the Forces Armee Royale. Operation Triangle cleared one of the few roads in Laos; Route 13 connected the administrative capitol of Vientiane with the royal capitol of Luang Prabang.
The Plain of Jars activities expanded by December 1964, were named Operation Barrel Roll, and were under the control of the U.S. ambassador to Laos, who approved all targets before they were attacked.
Operations Steel Tiger and Tiger Hound
This year began with an event that showed how the commanding generals of the five military regions of Laos were essentially warlords of their own domains.
In February, Commanding General of Military Region 5 Kouprasith Abhay mounted a coup against the group of generals who had attempted a coup the previous year. Among the losers fleeing into exile were General Phoumi Nosavan.
On 3 April, the U.S. began Operation Steel Tiger over the Laotian panhandle and the Vietnamese Demilitarized Zone (DMZ) to locate and destroy enemy forces and materiel being moved southward at night on the Ho Chi Minh Trail into South Vietnam. However, since circumstances made it a highly complex matter in regard to the apparent neutrality of Laos, target approval had to come from the U.S. government in Washington, D.C. Additionally, the U.S. ambassadors in South Vietnam, Laos, and Thailand were involved in controlling these U.S. air operations.
Late in 1965, the communists greatly increased their infiltration along the Ho Chi Minh Trail. The United States decided to concentrate airpower upon a small segment of the Trail closest to South Vietnam and used most extensively by the enemy. As a result, Operation Tiger Hound was initiated in December 1965, utilizing aircraft from the Air Force, the United States Navy, and U.S. Marines, the Vietnamese Air Force, and the Royal Laotian Air Force. On 11 December, B-52 heavy bombers were called in to this tactical operation, in their first use over Laos.
From 1965 to 1973, the civil war moved back and forth in northern Laos, characterized by short but often very intense engagements.
In the far northwest, Team Fox, an intelligence team of Mien hill tribesmen began long range reconnaissance of southern China.
In July, Royal Lao Government (RLG) forces seized Nam Bac. Three Infantry Regiments, one independent infantry battalion, and one artillery battalion took Nam Bac and established a defensive line north of Luang Prabang.
On the Plain of Jars, the Pathet Lao advance gradually slowed due to the destruction of its supplies by airpower, and Laotian troops then counter-attacked. By August 1966, they had advanced to within 45 miles of the DRV border. North Vietnam then sent thousands of its regular troops into the battle and once again the Laotians were forced to retreat.
Steel Tiger operations continued down the length of the panhandle in 1966, with special emphasis upon the Tiger Hound area. Since most of the communist truck traffic was at night, the Air Force developed and began using special equipment to detect the nighttime traffic.
In eastern Laos, U.S., Royal Laotian, and VNAF aircraft continued their attacks on traffic along the Ho Chi Minh Trail. During 1967, B-52s flew 1,718 sorties in this area, almost triple their 1966 record. The major targets were trucks which had to be hunted down and destroyed one-by-one. This seemed to be irrational thinking to many Americans flying these combat missions for these trucks could have been destroyed en masse before, during, or after their unloading from the freighters that had hauled them to North Vietnam if bombing of Haiphong had been permitted.
In northern Laos, the Communists continued their slow advance across the Plain of Jars in 1967. Laotian victories were few and far between, and by the end of the year, the situation had become critical even with the air support which had been provided by the Royal Lao Air Force.
Laotian tribal irregulars were operating out of Nam Bac, under CIA direction from Luang Prabang, some 60 miles south of the guerrilla base. In midyear, over the objections of Lao colonels, American advisors pressured Royal Lao troops into forming their smaller units into combat battalions. Despite the poor training of the Lao soldiers, some of whom had never fired a weapon, these raw new units were moved northward out of Luang Prabang over a several month period to garrison Nam Bac. By mid-October, some 4,500 government troops held the valley to secure the air strip for their resupply, a la Dien Bien Phu. The American intent was the establishment of Nam Bac as the keystone of an "iron arc" of defensive positions across northern Laos.
In response, the PAVN 316th Infantry Division was dispatched to Laos to assault Nam Bac. The Royalist garrison was soon surrounded. They had American-supplied 105mm howitzers for artillery support. They could also call on Royal Lao Air Force T-28s for close air support. U.S. Air Force fighter-bombers struck the Communist supply lines. Communist gunfire closed the Nam Bac airstrip to fixed wing resupply. Air America copters flew in supplies and evacuated the wounded; American C-123s parachuted supplies ferried from Udorn RTAFB to the beleaguered government troops. The Royalist troops would not launch a clearing attack to regain use of the runway for resupply. On 25 December, a Vietnamese artillery barrage kicked off their offensive.
1968: Royal Lao Army neutralized
On 13 January the North Vietnamese launched a multi-division attack on the Royal Lao Army at Nam Bac, Laos. Some of the government troops began withdrawing from the valley. After about a third of the defenders had retreated, the final assault on the Royalist garrison came out of a heavy mist and hit the Royalist command post. Its communications with the defenders was cut; the rout was on. The heavy weapons and scale of the PAVN attack could not be matched by the national army and it was effectively sidelined for several years.
Most of the government soldiers scattered into the surrounding hills; about 200 of the defenders were killed in action. Of the 3,278 Royalist soldiers, only about a third returned to government service. The Royalists had suffered such a staggering defeat that their army never recovered; the government was left with only tribal irregulars using guerrilla tactics fighting on its side.
Throughout 1968, the communists slowly advanced across the northern part of Laos, defeating Laotian forces time and time again. An important U.S. navigation aids site fell in the Battle of Lima Site 85 on 10 March 1968. This success was achieved despite U.S. military advice and assistance. In November, the U.S. launched an air campaign against the Ho Chi Minh Trail because North Vietnam was sending more troops and supplies than ever along this route to South Vietnam. This new operation, named Operation Commando Hunt, continued until 1972, with little success.
On 23 March 1969, the Royal Lao Army launched a large attack (Cu Kiet Campaign) against the communists in the Plain of Jars/Xieng Khoang areas, supported by its own air units and the U.S. Air Force. In June, the enemy launched an attack of its own and gained ground, but by August, Laotian forces attacked again and regained what had been lost. In all these operations, the U.S. Air Force flew hundreds of Barrel Roll missions; however, many were canceled because of poor weather.
Pathet Lao forces were supported by PAVN's 174th Vietnamese Volunteer Regiment. By September, the 174th had to fall back to regroup. In mid-September, they launched a counterattack and recovered the Plain of Jars. Forces participating in the campaign included the 316th and 312th Infantry Divisions, the 866th Infantry Regiment, the 16th Artillery Regiment, one tank company, six sapper and engineer battalions, one Nghe An Province local force battalion, and ten PL battalions.
On 11 February, the offensive (Campaign 139) opened. By the 20th, control of the Plain of Jars was secure. RLG forces withdrew to Muong Xui. On 25 February, the RLG abandoned Xieng Khoang city. Xam Thong fell on 18 March and Long Thieng was threatened. On 25 April, the campaign ended. After the end of the campaign, the "316th Division, the 866th Regiment, and a number of specialty branch units were ordered to stay behind to work with our Lao friends."
At the beginning of 1970, fresh troops from North Vietnam advanced through northern Laos. The Air Force called in B-52s and, on 17 February, they were used to bomb targets in northern Laos. The enemy advance was halted by Laotian reinforcements, and for the remainder of the year it was a "seesaw" military campaign.
Although communist movements down the Ho Chi Minh Trail grew during the year, the U.S. war effort was reduced because authorities in Washington, believing the U.S. objectives in Southeast Asia were being achieved, imposed budget limits. This reduced the number of combat missions the USAF could fly.
Because of significant logistical stockpiling by PAVN in the Laotian Panhandle, South Vietnam launched Operation Lam Son 719, a military thrust on 8 February 1971. Its goals were to cross into Laos toward the city of Tchepone and cut the Ho Chi Minh Trail, hopefully thwarting a planned North Vietnamese offensive. Aerial support by the U.S., was massive since no American ground units could participate in the operation. On 25 February, PAVN launched a counterattack, and in the face of heavy opposition, the South Vietnamese force withdrew from Laos after losing approximately a third of its men.
Combined offensive to take Plain of Jars. On 18 December, PAVN and Pathet Lao forces launched counteroffensive (Campaign Z) to recover the Plain. Volunteer forces included the 312th and 316th Divisions, the 335th and 866th Infantry Regiments, and six artillery and tank battalions. Xam Thong fell and the push continued toward Long Thieng.
Lower Laos – the 968th Infantry Regiment and Pathet Lao forces reclaimed the Tha Teng and Lao Nam areas, and liberated the Bolaven Plateau.
During the dry season 1971–72, PL/PAVN forces dug into defensive positions and fought for permanent control of the Plain of Jars. Units participating included the 316th Infantry Division, the 866th, 335th, and 88th Regiments, and nine specialty branch battalions under the command of Senior Colonel Le Linh. Seven PL battalions also participated.
On 21 May, RLG forces attempted to seize the Plain. The battle lasted 170 days (until 15 November 1972). The communists claimed to have killed 1,200 troops and captured 80.
When PAVN launched the Nguyen Hue Offensive (known in the West as the Easter Offensive) into South Vietnam on 30 March, Massive U.S. air support was required inside South Vietnam and its air strikes in Laos dropped to their lowest point since 1965.
In northern Laos, the communists made additional gains during the year but failed to overwhelm government forces. In November, the Pathet Lao agreed to meet with Laotian Government representatives to discuss a cease-fire.
The was had resulted in a large number of refugees with a peak number of 378,800 internally displaced persons under government control in October 1973.
The US pulled out of Laos in 1973, as stipulated by the Paris Peace Accord. North Vietnam was not required to remove its forces under the terms of the treaty.
The national government was forced to accept the Pathet Lao into the government. During 1974 and 1975 the balance of power in Laos shifted steadily in favour of the Pathēt Lao as the U.S. disengaged itself from Indochina. Prime Minister Souvanna Phouma was tired and demoralised, and following a heart attack in mid-1974 he spent some months recuperating in France, after which he announced that he would retire from politics following the elections scheduled for early 1976.
The anti-communist forces were thus leaderless, and also divided and deeply mired in corruption. Souphanouvong, by contrast, was confident and a master political tactician, and had behind him the disciplined cadres of the communist party and the Pathēt Lao forces and the North Vietnamese army. The end of American aid also meant the mass demobilization of most of the non-Pathēt Lao military forces in the country. The Pathēt Lao on the other hand continued to be both funded and equipped by North Vietnam.
In May 1974 Souphanouvong put forward an 18-point plan for "National Reconstruction," which was unanimously adopted – a sign of his increasing dominance. The plan was mostly uncontroversial, with renewed promises of free elections, democratic rights and respect for religion, as well as constructive economic policies. But press censorship was introduced in the name of "national unity," making it more difficult for non-communist forces to organise politically in response to the creeping Pathēt Lao takeover. In January 1975 all public meetings and demonstrations were banned. Recognising the trend of events, influential business and political figures began to move their assets, and in some cases themselves, to Thailand, France or the U.S.
Fall of Vientiane
In March 1975, confident that the U.S. no longer had the stomach to intervene militarily in Indochina, the North Vietnamese began their final military offensive in South Vietnam, which by the end of April carried them to victory with the fall of Saigon. A few days earlier the Khmer Rouge army had entered Phnom Penh. The Pathēt Lao now knew that victory was within reach, and with the Vietnam war over the North Vietnamese authorised the seizure of power in Laos. Pathēt Lao forces on the Plain of Jars supported by North Vietnamese heavy artillery and other units began advancing westward.
In late April, the Pathēt Lao took the government outpost at Sala Phou Khoum crossroads which opened up Route 13 to a Pathēt Lao advance toward Muang Kassy. For the non-Pathēt Lao elements in the government, compromise seemed better than allowing what had happened in Cambodia and South Vietnam to happen in Laos. A surrender was thought to be better than a change of power by force.
Demonstrations broke out in Vientiane, denouncing the rightists and demanding political change. Rightist ministers resigned from the government and fled the country, followed by senior Royal Lao Army commanders. A Pathēt Lao minister took over the defence portfolio, removing any chance of the Army resisting the Pathēt Lao takeover. Prime Minister Souvanna Phouma, dreading further conflict and apparently trusting Souphanouvong's promises of a moderate policy, gave instructions that the Pathēt Lao were not to be resisted, and the U.S. began to withdraw its diplomatic personnel.
The Pathēt Lao army entered the major towns of southern Laos during May, and in early June occupied Luang Phrabāng. Panic broke out in Vientiane as most of the business class and many officials, officers and others who had collaborated with the U.S. scrambled to get their families and property across the Mekong to Thailand. Recognising that the cause was lost, Vang Pao led thousands of his Hmong fighters and their families into exile – eventually about a third of all the Lao Hmong left the country. Pathēt Lao forces entered an almost deserted Vientiane in August.
For a few months the Pathēt Lao appeared to honour their promises of moderation. The shell of the coalition government was preserved, there were no arrests or show-trials, and private property was respected. Diplomatic relations with the U.S. were maintained, despite an immediate cut-off of all U.S. aid. (Other western countries continued to offer aid, and Soviet and eastern European technicians began to arrive to replace the departed Americans.) But in December there was a sharp change in policy. A joint meeting of the government and the Consultative Council was held, at which Souphanouvong demanded immediate change. There was no resistance.
On December 2 when Vientiane fell to the Pathet Lao King Savang Vatthana agreed to abdicate, and Souvanna Phouma resigned. The Lao People's Democratic Republic was proclaimed, with Souphanouvong as President. Kaisôn Phomvihān emerged from the shadows to become Prime Minister and the real ruler of the country. No more was heard of elections or political freedoms: non-communist newspapers were closed, and a large-scale purge of the civil service, army and police was launched. Thousands were dispatched for "re-education" in remote parts of the country, where many died and many more were kept for up to ten years. This prompted a renewed flight from the country. Many of the professional and intellectual class, who had initially been willing to work for the new regime, changed their minds and left – a much easier thing to do from Laos than from either Vietnam or Cambodia. By 1977 ten percent of the population had left the country, including most of the business and educated classes.
Once in power, the Pathet Lao economically cut its ties to all its neighbors (including China) with the exception of the DRV and signed a treaty of friendship with Hanoi. The treaty allowed the Vietnamese to station soldiers within Laos and to place advisers throughout the government and economy. This is considered by most historians and journalist to be the end of the Second Indochina War.
Evacuation of the Hmong
A dramatic event during the takeover of Laos by the communists was the evacuation of Vang Pao and other Hmong leaders by air from Long Tieng. The end came for Vang Pao on 5 May 1975 when he was called before Souvanna Phouma, the Prime Minister of Laos, and ordered to cooperate with the communist Pathet Lao. Vang Pao took the general’s stars off his collar, threw them on the desk of Souvanna Phouma, and stalked out of the room. Four days later the official Pathet Lao newspaper warned that the Hmong would be exterminated “to the last root.”
Jerry Daniels, Vang Pao’s CIA case officer, was the only American remaining in Long Tieng and he began to plan an evacuation of the Hmong. However, he had only one airplane to evacuate the 3,500 Hmong leaders and families he judged to be at risk of execution by the Pathet Lao then advancing on Long Tieng. Brigadier General Heinie Aderholt in Bangkok helped to find additional planes and sent three pilots flying two C-46 and one C-130 transport aircraft to Long Tieng. The planes were “sheep-dipped” to remove any U.S. markings as the operation was carried out in secret. The pilots were American civilians: Les Strouse, Matt Hoff, and Al Rich.
With the three American planes, the evacuation began in earnest on 13 May with each transport aircraft making four flights each that day from Long Tieng to Udorn, Thailand and transporting more than 65 people per airplane on each trip – far more than the 35 maximum passengers dictated by safety conditions at mountain-ringed Long Tieng. Thousands of Hmong clustered around the airstrip at Long Tieng awaiting evacuation and the situation became increasingly ugly. On 14 May, Vang Pao and Jerry Daniels were evacuated secretly by helicopter to Thailand and the air evacuation came to an end. The next day the Pathet Lao marched into Long Tieng unopposed. Daniels accompanied Vang Pao to exile in Montana and then returned to Thailand to help the Hmong refugees there.
What nobody had anticipated was the tens of thousands of Hmong left behind in Long Tieng and Laos would follow Vang Pao and other Hmong leaders to Thailand. By the end of 1975 about 40,000 Hmong had succeeded to reaching Thailand, traveling on foot through the mountains and floating across the Mekong River. How many died or were killed in the attempt to escape Laos is not known, but the flight of Hmong and other Laotian highland peoples into Thailand would continue for many more years. They faced repression at home from the communist government as the price of their collaboration with the Americans. Most of the Hmong in Thailand would eventually be resettled in the United States and other countries. Between 1975 and 1982, 53,700 Hmong and other highland Laotian refugees were resettled in the United States and thousands more in other countries.
Twenty two years following the end of the Laotian War, on 15 May 1997, the U.S. officially acknowledged its role in the Secret War, erecting a memorial in honour of American and Hmong contributions to U.S. air and ground combat efforts during the conflict. The Laos Memorial is located on the grounds of the Arlington National Cemetery between the John F. Kennedy Eternal Flame and the Tomb of the Unknown Soldier.
The government of Laos has been accused of committing genocide against that country’s Hmong ethnic minority. After the Pathet Lao took over the country in 1975, the conflict continued in isolated pockets. In 1977 a communist newspaper promised the party would hunt down the “American collaborators” and their families “to the last root”. Up to 100,000 Hmong out of a population of 400,000 were killed by the Pathet Lao in collaboration with the Vietnam People's Army during the ensuing Hmong insurgency. Laotian troops used illegal chemical weapons to kill Hmong rebels and civilians. The Laotian Government has protested the claims of genocide, alleging that the actions against the Hmong was that of a lawful government against a violent rebellion.
In 2004, following several years of pressure from a coalition of U.S. conservatives and liberal human rights activists, the U.S. government reversed a policy of denying immigration to Hmong who had fled Laos for refugee camps in Thailand in the 1990s. In a major victory for the Hmong, fifteen thousand Hmong were later recognised as refugees and afforded expedited U.S. immigration rights by the U.S. government.
A legacy of the civil war is continuing casualties from unexploded ordnance (UXO) dropped by the U.S. and Laotian Air Forces from 1964–1973. It has been reported that areas controlled by the invading communist North Vietnamese and Pathet Lao were hit by an average of one B‑52 bomb-load every eight minutes, 24 hours a day, between 1964 and 1973. More than 2 million tons of bombs were dropped on Laos particularly on Xiangkhouang Province, 30 percent of which failed to explode immediately. However, UXO remains dangerous to persons coming in contact, purposefully or accidentally, with bombs. Casualties in Laos from UXO are estimated at 12,000 since 1973. Thirty-three years after the last bomb was dropped and after decades of UXO clearance programs, 59 people were known to have been killed or injured by UXO in 2006. So abundant are the remnants of bombs on the Plain of Jars that the collection and sale of scrap metal from bombs has been a major industry since the Civil War.
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- War in Laos, 1954–1975. Kenneth J. Conboy. Squadron/Signal Publications, 1994. ISBN 978-0-89747-315-6, ISBN 978-0-89747-315-6.
- At War in the Shadow of Vietnam: United States Military Aid to the Royal Lao Government, 1955–1975. Timothy Castle. Columbia University Press, 1993. ISBN 978-0-231-07977-8, ISBN 978-0-231-07977-8.
- Henry Kissinger, White House Years.
- Richard Nixon, RN: The Memoirs of Richard Nixon.
- Kao Kalia Yang, The Latehomecomer
- Adams, Nina S. and Alfred W. McCoy, eds. Laos: War and Revolution. New York: Harper & Row, 1970.
- Breaux, Jarred James, The Laotian Civil War: The Intransigence of General Phoumi Nosavan and American Intervention in the Fall of 1960. Morrisville, N.C.:Lulu, 2008.
- Blaufarb, Douglas, The Counterinsurgency Era.
- Champassak, Sisouk Na, Storm Over Laos. New York: Praeger, 1961.
- Conboy, Kenneth with James Morrison, Shadow War: The CIA's Secret War in Laos. Boulder CO: Paladin Press, 1995.
- Corn, David, Blond Ghost: Ted Shackley and the CIA's Crusades. Simon & Schuster, 1994. ISBN 978-0-671-69525-5, ISBN 978-0-671-69525-5
- Duiker, William J., The Communist Road to Power in Vietnam 2nd ed. Westview Press, 1996.
- Issacs, Arnold, Gordon Hardy, MacAlister Brown, et al., Pawns of War: Cambodia and Laos. Boston: Boston Publishing Company, 1987.
- Karnow, Stanley, Vietnam: A History. New York: Viking, 1983.
- McGehee, Ralph W. Deadly Deceits: My 25 Years in the CIA. New York: Sheridan Square, 1983.
- Morrison, Gayle L. Sky is Falling: an Oral History of the CIA evacuation of the Hmong from Laos, Jefferson, NC: McFarland, 1999
- Osornprasop, Sutayut, Thailand and the secret War in Laos, 1960-1974 (in) Albert Lau (ed.), Southeast Asia and the Cold War, Milton Park, Abingdon, Oxon ; New York, NY : Routledge, 2012, ISBN 9780415684507 (hardback).
- Robbins, Christopher, Air America. New York: Avon, 1985.
- Robbins, Christopher, The Ravens: Pilots of the Secret War in Laos. Bangkok: Asia Books, 2000.
- Thompson, Larry Clinton, Refugee Workers in the Indochina Exodus, 1975–1982. Jefferson, NC: McFarland, 2010. 
- Warner, Roger, Shooting at the Moon: The Story of America's Clandestine War in Laos. South Royalton, VT: Steerforth Press, 1996.
- Undercover Armies, CIA and Surrogate Warfare in Laos, from CIA's FOIA Reading Room
- CIA Declassified Air America Collection
- CIA Vietnam FOIA Collection. Documents declassified by CIA under FOIA.
- "'Secret War' Still Killing Thousands," Andre Vltchek, Worldpress.org correspondent, 14 November 2006.
- The Secret War in Laos, from the plainofjars.net Web Site.
- "Acts of Betrayal", by Michael Johns, National Review, New York City, 23 October 1995.
- Air America Association web site
- Online Archive Materials about Air America in the Vietnam Archive at Texas Tech
- Air America – Roll of honour and images.
- Air America by Christopher Robbins
- The Ravens, Pilots of the Secret War in Laos by Christopher Robbins
- Hmong In Transition by Sheila Pinkel
- Bibliography: Laos (bibliography mainly devoted to the portions of the Second Indochina War that occurred in Laos)
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