U.S. soldiers move near a zigzag Vietcong trench in a jungle in South Vietnam. Smoke rises from fire in background. Two U.S. soldiers sit in an open field. They talk to each other and smoke. (Vietnam War period).
American 1st Cavalry sergeant in a radio control room talks on phone at the An Khe Air Base in Vietnam. The sergeant takes message and notes it down. He talks on radio. A radio instrument. American Army and United States Air Force (USAF) personnel look at aerial photos in the control room. (Vietnam War period).
American Army (1st Cavalry) and United States Air Force (USAF) personnel look at aerial photos at the control room in the An Khe Air base, Vietnam. Army and USAF personnel work at their desks and discuss air-strike plans. (Vietnam War period).
Two American Army officers exit a shelter at the An Khe Air Base in Vietnam. The officers enter a sandbagged checkpoint. Sign outside the checkpoint reads 'Restricted Area Official Business Only'. (Vietnam War period).
Aerial view of American 1st Cavalry insignia painted on a hillside in Vietnam. American Army camp atop the hill. Watch towers and army personnel at the camp. View of the An Khe Air Base and surroundings. Aircraft taxied on the air base. (Vietnam War period).
American Army and United States Air Force officers stand beside an O-1G Aircraft at the An Khe Air Base in Vietnam. They check orders prior to mission. Pilot performs several preflight checks on the aircraft. O-G's engine is started. Forward Air Controller (FAC) directs O-1G in taxiing down flight line. (Vietnam War period).