Operation Thayer II by First Air Cavalry Division of United States Army in Ankhe, South Vietnam. 1st Cavalry Division soldiers interrogate Viet Cong suspects at a village Bongson. Suspects on their knees near their huts. Soldiers match photographs of Viet Cong suspects from a photo album. Natives sit on ground and then walk with the soldiers. A soldier uses flame thrower to destroy a hut. (Vietnam War period).