In 1960 revolutionaries in South Viet Nam created the National Liberation Front, a political and military organization committed to overthrowing the Saigon government and liberating Viet Nam south of the seventeenth parallel. The role of the NLF during the war has been hotly debated, with officials in Washington claiming from the outset that the NLF was merely a puppet of Hanoi. Based on over a hundred interviews with former Communist cadre and high...