Operation Menu was the codename of a covert United States Strategic Air Command (SAC) bombing campaign conducted in eastern Cambodia from 18 March 1969 until 26 May 1970, during the Vietnam War. The targets of these attacks were sanctuaries and Base Areas of the People's Army of Vietnam (PAVN) and forces of the Viet Cong, which utilized them for resupply, training, and resting between campaigns across the border in the Republic of Vietnam (South Vietnam). The impact of the bombing campaign on the Khmer Rouge guerrillas, the PAVN, and Cambodian civilians in the bombed areas is disputed by historians.