The decision was made in quiet rooms. The target was a network of footpaths and supply routes known as the Sihanouk Trail, threading through the jungles of eastern Cambodia. It was used by North Vietnamese forces to move men and materiel into South Vietnam. The operation, codenamed Menu, was classified. Congress was not informed. The American public was told nothing.
President Richard Nixon and National Security Advisor Henry Kissinger authorized the strikes. The official story, if one was needed, would involve targeting areas in South Vietnam. The B-52 Stratofortress crews received falsified coordinates for their missions. They would take off, then be given the real targets once airborne. The paperwork was a fiction.
This was not a single raid. It was the start of a policy, a sustained, secret war waged from the air against a neutral country. The explosions tore through the Cambodian countryside for fourteen months. The exact number of casualties remains unknown. The political fallout, however, became a defining feature of the era. When the bombing was eventually revealed, it fueled a constitutional crisis over executive power and secrecy. It expanded the conflict geographically while eroding its moral foundation at home. The secret, intended to protect the war effort, became one of the primary instruments of its delegitimization.