** FILE ** Hovering U.S. Army helicopters pour machine gun fire into tree line to cover the advance of South Vietnamese ground troops in an attack on a Viet Cong camp 18 miles north of Tay Ninh, northwest of Saigon near the Cambodian border, in March 1965 during the Vietnam War. (AP Photo/Horst Faas) ** zu unserem Paket: 1968 Jahrestag **