How a Top-Secret U.S. Base Was Overrun By Elite Vietnamese Commandos

By Sebastien Roblin,The National Interest

Fifty years ago on March 12, 1968, a top-secret U.S. base on a mountain top in Laos was overrun by an elite force of Vietnamese commandos. Only six of the eighteen CIA and Air Force personnel manning the remote outpost escaped with their lives in an incident that would remain veiled in secrecy for three decades.

This was because the U.S. military was legally prohibited from operating in Laos. The southeast Asian nation had been wracked by a civil war pitting right-wing royalists against Pathet Lao communists—the latter backed by North Vietnam, which used Laotian territory to clandestinely funnel troops into South Vietnam via the Ho Chi Minh trail. However, in 1962 Washington, Hanoi and Laotian factions all signed a peace treaty in which the foreign powers agreed to withdraw their forces from the country.

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However, North Vietnam only withdrew a minority of its forces, and the United States continued transferring extensive military aid to the royalist and instead began a secret but large-scale aerial bombing campaign in the kingdom known as Operation Barrel Roll. Though warplanes based in Vietnam and Thailand flew missions into Laos, CIA-run mercenary contractors and ‘airlines’ such as Air America flew transport and observation aircraft from Laotian bases.

CIA personnel also recruited local Hmong, an ethnic minority present in several southeast Asian states, to fight a guerilla war against the Pathet Lao. It was with this purpose in mind that CIA personnel first established a base atop the steep cliff of Phou Pha Thi mountain, a sacred place in the Hmong’s animist faith which happened to be strategically located near the border with North Vietnam.