On 30 January 1968 the North Vietnamese communists launched a coordinated surprise attack - the Tet Offensive - across South Vietnam against the South Vietnamese and American armies. Superior firepower eventually crushed the offensive, but it proved to be a major psychological victory for the communists. Anthony Tucker-Jones, in this photographic history of Tet - and of American involvement in the struggle against the forces of the Viet Cong and the regular North Vietnamese army - uses over 180 contemporary images to show all sides of the conflict and to reassess a defining moment in the protracted and bitter campaign against communism in South-East Asia