Between 1964 and 1973, American aircraft dropped two million tonnes of ordnance on Laos. This included approximately 270 million cluster bomblets, of which an estimated 80 million failed to explode on impact and remain in the soil, in the rivers, in the fields, and under the floors of houses, across approximately a quarter of the country’s landmass. Laos is the most heavily bombed country per capita in the history of aerial warfare. The bombing was conducted largely in secret, authorised by successive American administrations without congressional approval and without public acknowledgement, because it was technically illegal under the terms of the Geneva Accords that had established Laos as a neutral state.
The strategic logic was the Ho Chi Minh Trail, the supply network that North Vietnam used to move troops and material through Laos and Cambodia to communist forces fighting in South Vietnam. By bombing the trail relentlessly, the American military hoped to cut the supply line and starve the southern insurgency. It did not work. The trail was not a fixed infrastructure but a network of paths, depots, and improvised routes that could be rerouted around damage faster than aircraft could inflict it, and the Laotian population bore the consequences of a military campaign that had no formal relationship to their own country’s war. The CIA simultaneously ran a covert ground operation, arming and training Hmong tribesmen in the northern highlands to fight the Pathet Lao, the communist faction that was the domestic party in the Laotian civil conflict, producing a war within the secret war that cost the Hmong community tens of thousands of lives and created a refugee crisis that sent hundreds of thousands of Laotians into exile in Thailand.
This included approximately 270 million cluster bomblets, of which an estimated 80 million failed to explode on impact and remain in the soil, in the...
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