 Although David Chandler argued that the bombing "had the effect the Americans wanted--it broke the communist encirclement of Phnom Penh," others have claimed it boosted recruitment for the Khmer Rouge.North Vietnam violated the Paris Peace Accords after the US withdrew, and all of Indochina had fallen to communist governments by late 1975.In 1975 it was revealed by the Church Committee that the United States had covertly intervened in Chile from as early as 1962, and that from 1963 to 1973, covert involvement was "extensive and continuous".