Operation Strength

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Operation Strength was the codename for several military operations in the 20th century

It can refer to:

Operation Strength was a Royalist military offensive of the Laotian Civil War. The attack, undertaken against the advice of his American backers by Hmong General Vang Pao, was launched across the rear of the attacking People's Army of Vietnam forces. A distracting attack was launched from Boumalong in the north while the main assault struck northwards from Ban Pa Dong. A BLU-82 superbomb served as a secondary distraction. Having drawn 11 of the 22 attacking Communist battalions back into their own rear area, the Royalists withdrew after suffering light casualties. The Operation Strength feints into the PAVN rear area sapped the vigor from the ongoing Campaign Z.

Operation Strength II was a Royalist military offensive of the Laotian Civil War. It was devised as another diversion in the mode of the original Operation Strength. Planned as a pincer movement on the Plain of Jars, Operation Strength II's beginning was grossly hampered by combat refusals and desertions from one of its two task forces. Loss of tactical air support as the Easter Offensive began in South Vietnam also weakened the Laotian effort. In any event, neither pincer did much toward its goal of distracting the People's Army of Vietnam from its attempts to overrun the strategic guerrilla base at Long Tieng and end the war.


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Operation Off Balance was a hastily planned offensive operation of the Laotian Civil War; it happened between 1 and 15 July 1969 on the Plain of Jars in the Kingdom of Laos. The Royal Lao Government forces in Military Region 1 of Laos had just been evicted from the crucial all-weather airfield at Muang Soui, as well as most of the Plain, on 28 June 1969. Hmong General Vang Pao planned a quick counter-offensive to recapture the airfield from his communist foe; it would kick off on 1 July, supported by 60 sorties per day of tactical air strikes from Operation Barrel Roll.

Operation Junction City Jr. was a major Laotian offensive of the Vietnam War; initially aimed at temporary disruption of the Ho Chi Minh Trail, it was extended into an attempt to isolate the major North Vietnamese communist transshipment point at Tchepone from the units it was supposed to supply.

Operation Left Jab was the first military offensive launched against the Sihanouk Trail extension of the Ho Chi Minh Trail during the Second Indochina War. It was the first battalion-sized operation waged by the Royal Lao Army against the communists in Military Region 4. Carried out between 21 and 26 June 1969, the assault interdicted Route 110 of the Sihanouk Trail for its planned three-day stoppage of military supplies. The Royalist guerrillas of Special Guerrilla Unit 2 then evaded an approaching counterattack and regrouped in friendly territory. Operation Left Jab had cleared the way for Operation Diamond Arrow.

Operation Phiboonpol was a "short but very intense engagement" of the Laotian Civil War. Five Royal Lao Government battalions went on the offensive in Military Region 4 of the Kingdom of Laos to try to regain the Boloven Plateau, which overlooked the vital Ho Chi Minh Trail lying to its east. Stopped in its tracks by the People's Army of Vietnam, with its first use of tanks in southern Laos, the Royalists held firm while close air support inflicted heavy casualties on North Vietnamese attackers. A Thai mercenary company sent as a Royalist relief force was ambushed and wiped out. For weeks after the battle, vultures feasted on unburied corpses.

Operation Phoutah was one of a series of offensive operations aimed at the vital Ho Chi Minh trail complex during the Second Indochina War. Staged by a Central Intelligence Agency-sponsored Royalist Laotian irregular regiment, Operation Phoutah was a defensive strike against an oncoming offensive from the 50,000 North Vietnamese troops safeguarding the major transshipment point centered on Tchepone, Laos. The Royalist objective was the capture and occupation of Moung Phalane, which was needed to continue staging guerrilla raids on the Trail. In this, Operation Phoutah failed.

Operation Bedrock (Laos) was a military offensive staged by the Royal Lao Armed Forces against the People's Army of Vietnam in Military Region 4 of the Kingdom of Laos. Its purpose was disruption of the supply of rice to Communist forces occupying the Ho Chi Minh Trail. It was successful.

Phou Khao Kham, was a Royal Lao Government military offensive operation of the Laotian Civil War designed to clear Communist forces off Routes 13 and 7 north of the administrative capital of Vientiane. Its end objective was the capture of the forward fighter base at Muang Soui on the Plain of Jars. Although it succeeded in taking the air base, it failed to remove a concentration of Communist troops at the Sala Phou Khoun intersection of Routes 7 and 13.

Campaign Z

Campaign Z was a military offensive by the People's Army of Vietnam; it was a combined arms thrust designed to defeat the last Royal Lao Army troops defending the Kingdom of Laos. The Communist assault took Skyline Ridge overlooking the vital Royalist base of Long Tieng and forced restationing of Royalist aviation assets and civilian refugees. However, Communist forces eventually receded back onto their lines of communication without capturing the base.

Operation Maharat was a military offensive of the Royal Lao Government aimed at Communist insurrectionists. At stake was the sole road junction in northern Laos well in the rear of Royalist troops fighting in Campaign Z. On 30 December 1971, the garrison of a Royal Lao Army artillery battery and two Forces Armées Neutralistes battalions was besieged by an attacking force of Pathet Lao and Patriotic Neutralists. On 21 January 1972, the Royalists were reinforced by 11th Brigade, then overrun. The Communists spread north and south along Route 13 over a 110 km (68 mi) stretch. A Royalist counter-attack on 16 March 1972 would find both Route 13 and the intersection vacated.

Operation Sinsay was a Royal Lao Government offensive of the Laotian Civil War. The planned offensive was pre-empted by prior moves by the opposing People's Army of Vietnam (PAVN); they struck on 6 March 1972. Although the Communist attack reached Laongam, 21 kilometers from Pakxe and the Thai border, and the defending Royalist battalions there were reassigned to fight in Operation Strength on the Plain of Jars, monarchist guerrillas were able to interdict Communist supply lines and force a Vietnamese retreat by the end of March 1972.

Operation Fa Ngum was a Laotian military offensive aimed at capturing the villages of Ban Ngik and Laongam as bases for incursions onto the Ho Chi Minh Trail. The Central Intelligence Agency backers of Royalist guerrillas planned to use a combination of air mobility and route march assaults to clear Route 23 through the two towns. Defensive forces to be defeated were the People's Army of Vietnam 9th and 39th Regiments. At various times and in differing combinations, the Royalists would commit two regiments of guerrillas, a makeshift regiment of the Royal Lao Army, three battalions of Neutralists, and a detachment of armored cars. Fighting a two-phase battle, the Royalists displaced the two PAVN regiments back towards the Vietnamese border. The Royalists both gained and gave up the open air cemetery of Ban Ngik. The PAVN returned westward toward the Thai border as the Royalists fell back. Enfeebled by mutiny and a serious casualty rate, the Royalists ended Operation Fa Ngum with a weak defensive blocking position at Laongam on Route 23.

Operation Phou Phiang II was one of the final battles of the Laotian Civil War. It was an attempt to relieve the siege on the guerrilla headquarters at Long Tieng on the Plain of Jars. It was designed as a two phase attack consisting of five task forces of Thai mercenaries and Royalist guerrillas upon the People's Army of Vietnam invading Laos. Air superiority was used to direct over 100 air strike sorties daily to support the offense, and air mobility to shuffle attacking troops. A new radar bombing program by F-111 Aardvarks and B-52 Stratofortresses failed to cripple the Communist forces. Designed to overwhelm Communist defenses with its multiplicity, the five Lao task forces were defeated in detail by the Communists despite two new columns being improvised and introduced into the fray.

Operation Phou Phiang III was the final offensive of the Laotian Civil War by the Royal Lao Army's L'Armée Clandestine. Central Intelligence Agency-sponsored Hmong guerrillas and Thai mercenaries formed three attacking task forces in an attempt to clear the People's Army of Vietnam from positions near the Royalist guerrillas' headquarters on the Plain of Jars. All three columns failed to move the Vietnamese invaders before the ceasefire of 21 February 1973 ended the war.

Operation Maharat II was a Royalist offensive against Pathet Lao insurrectionists during the Laotian Civil War. The Royalists planned a two pronged convergence on four Pathet Lao battalions holding the intersection of routes 7 and 13. With neither side particularly avid for combat, the situation was resolved by the Royalist reinforcement of its attack forces until the Communists faced overwhelming odds. The Pathet Lao then decamped. Operation Maharat II ended on 5 February with an artillery fire base supporting an irregular regiment occupying the road intersection. On 22 February 1973, a ceasefire took effect.

Operation Black Lion III was one of the last Royal Lao Army offensives of the Laotian Civil War. Aimed at regaining the Lao towns of Paksong and Salavan and their associated airfields for Lao usage, the three regiment offensive captured Salavan on 20 October 1972, and Paksong shortly thereafter. Although the besieged Royalists would hold through early February 1973, they would be routed by PAVN tanks and infantry just before the 22 February 1973 ceasefire ended the war.

Campaign 972 was the final offensive in the south of the Kingdom of Laos by the People's Army of Vietnam (PAVN). After fending off a score of Royal Lao Government attacks against the Ho Chi Minh Trail between June 1969 and late 1972, the PAVN attacked and essentially cut Laos in two at Khong Sedone by November 1972. Sporadic ongoing fighting, especially for control of Paksong, continued until 8 February 1973. Although a ceasefire officially ended the Laotian Civil War at noon on 23 February with Salavan, Thakhek, and Lao Ngam in Communist hands, the PAVN launched another successful assault on Paksong 15 minutes later.

The Battles of Bouamlong came about because the valley of Bouamlong was a center of Royalist guerrilla operations during the Laotian Civil War. Located well into Communist-held territory and maintained by an air bridge, on several occasions Bouamlong served as a launching point for Royalist offensives such as Operation Raindance, Kou Kiet, Operation Counterpunch III, and Operation Strength. It was also targeted for attack by offensives by the People's Army of Vietnam during Campaign 139 and Campaign 74B. Defended by Auto Defense Choc troops led by Major Cher Pao Moua, Bouamlong held out against the Communist forces even after the War ended in a ceasefire in February 1973. There were reports of resistance into the 1990s.

Unity was the code name for Thailand's covert supply of mercenary soldiers to the Kingdom of Laos during the Laotian Civil War. From 4 July 1964 until March 1973, battalions of Thai volunteers fought Communist insurgents on the Plain of Jars in Military Region 2. As the Hmong L'Armée Clandestine was sapped by ongoing casualties and a limited basis for replacements, Unity battalions replaced them.