In the United States, the intervention in Laos is known as “the Secret War” because the government concealed everything about its activities. But to Laotians, the effects of the American bombardment have never been a secret.

Nengyong is just one of roughly twenty thousand people who have been injured or killed by unexploded ordnance (UXO) in Laos since 1973. The UXO is the legacy of intensive American bombing of Laos from 1964 to 1973, when the United States dropped two million tons of bombs on the country — more than twelve times the amount of bombs dropped on Japan during World War II. Laos is, per capita, the most heavily bombed country on Earth.

In April 2012, Nengyong Yang , a farmer in Laos, was cutting a tree in his field, preparing to plant corn. As Nengyong was hacking away, a bomb lodged in the trunk of the tree exploded in his face. Nengyong survived, but lost both his eyesight and his ability to provide for his wife and four children. Two months later, his wife found his lifeless body hanging from a tree.

The Secret War

Laos was (and remains) a mostly poor, agricultural society. The French maintained Laos as a colony from the late nineteenth century until the end of the First Indochina War in 1954, when the country was granted independence and neutrality. (The only exception was when Japan briefly controlled Laos during World War II.)

A coalition government of rightist, neutralist, and leftist factions was meant to administer power, but this proved impossible in the geopolitical climate of the time. The United States endeavored to keep both neutralists and the left-wing Pathet Lao (the nationalist, communist organization that had fought against the French) out of power through bribery and rigged elections.

Disenchanted by a political process that denied it participation, the Pathet Lao returned to fighting, and Laos was soon engulfed in a civil war that pitted the Pathet Lao (backed by North Vietnam) against the right-wing royalist government (backed by the United States). At the same time, North Vietnamese forces began infiltrating Laos on the Ho Chi Minh Trail, intensifying US involvement in Laos.

On the ground in Laos, the CIA organized and trained a mercenary army of ethnic Hmong to fight the Pathet Lao. Led by Vang Pao, a brutal commander who summarily executed those who crossed him, the mercenary army suffered tens of thousands of deaths. Vang Pao began recruiting child soldiers to keep up with the heavy losses and trafficked opium to help finance his operations. These activities were given the green light by the CIA (in fact, the opium was transported on Air America flights, an airline covertly operated by the CIA).

The worst destruction, however, came from the sky: from 1964 to 1973, the United States flew 580,000 bombing missions over Laos. The ostensible targets were Vietnamese communist troops and Pathet Lao forces. In practice, however, the targets were anything that moved, as eyewitness and refugee testimonies indicate.

When Lyndon Johnson announced a halt to the bombing of North Vietnam in 1968, the bombing of Laos escalated. Asked about the bombing during Senate testimony, Deputy Chief of Mission Monteagle Stearns said, “Well, we had all those planes sitting around and couldn’t just let them stay there with nothing to do.”

Some of the bombings were carried out merely to make life more convenient for the American bombers: if they couldn’t find their targets over Vietnam, the pilots would deposit the bombs over a random location in the Laotian countryside, because the planes couldn’t land with ordnance still on board.

The human cost of the US bombing campaign was immense. Fred Branfman, an international aid worker living in Laos, encountered refugees fleeing from the Plain of Jars region, an archeological landscape of ancient stone jars and also the site of intensive American bombing. Speaking Laotian, Branfman talked to the refugees and collected essays and drawings about what it was like to live under the bombardment. He published his findings in an important book, Voices from the Plain of Jars: Life under an Air War .

The refugees spoke of a relentless campaign of destruction: entire villages incinerated, temples and schools destroyed, livestock killed, people buried alive in holes they dug trying to escape the bombs, people burned alive by napalm and white phosphorous, others forced to live underground in caves for years.

A thirty-three-year-old woman described her experience:

I saw my cousin die in the field of death. My heart was most disturbed and my voice called out loudly as I ran to the houses. Thus, I saw life and death for the people on account of the war of many airplanes in the region of Xieng Khouang. Until there were no houses at all. And the cows and buffalo were dead. Until everything was leveled and you could see only the red, red ground. I think of this time and still I am afraid.

A thirty-nine-year-old rice farmer:

The planes bombed every day. After they bombed my village, they bombed the roads and the small paths, and also completely destroyed our ricefields. After that we had to dig other holes even further away because we were so afraid. On the days that the airplanes would come we were so afraid we didn’t want to eat. I pitied my children, for when the airplanes came to bomb my ricefields, they were afraid and afterwards would weep loudly. I was very afraid and could not even close my eyes to sleep. In 1968, there were no houses remaining in my village at all; and all my cows and buffalo had been killed.

It is impossible to know how many people the US bombings killed. As historian Alfred McCoy explained in a 2008 documentary on the Secret War, “We drove tens of thousands of people into becoming refugees. We inflicted . . . we don’t know how many dead. There’s no counting. We incinerated . . . we atomized human remains in this air war.”

The United States ended the bombing campaign in 1973 after signing the Paris Peace Accords. Two years later, the Pathet Lao achieved victory over their royalist enemies and took control of the country. For Laotians, however, the effects of the devastating air campaign would linger for decades.