U.S. 2D Battalion 503D Infantry 173D Airborne Brigade soldiers walk cautiously through jungle during Operation Big Spring in North of Bien Hoa, South Vietnam.. Cave entrance. Soldiers walk across clearing. Scout dog leading soldier. Other soldiers follow. Soldiers waiting for helicopters to arrive. Two officers looking at map. (Vietnam War period).
U.S. 2D Battalion 503D Infantry 173D Airborne Brigade Soldiers move through mess line in clearing during Operation Big Spring in North of Bien Hoa, South Vietnam. Radio operator eating. Soldiers going through the mess line. Soldier give can to another soldier. (Vietnam War period).
Stack of 105mm howitzer rounds during Operation Big Springs in North of Bien Hoa, South Vietnam. U.S. 2D Battalion 503D Infantry 173D Airborne Brigade soldier setting up an M-102, 105mm Howitzer in field. (Vietnam War period).
U.S. Marines advance through a jungle in Khe Sanh, Vietnam. A Marine in foul weather gear, smoking a cigarette, prepares to pull the pin on a smoke grenade, to mark a landing zone for medivac. Green smoke rises. Helicopter in flight overhead. Marines carry wounded comrade to landing site, where helicopter has landed. Marines unload "C" rations from UH34D helicopter and place the wounded Marine aboard the helicopter. They help one ambulatory wounded Marine to board. As helicopter takes off, gunner with M-60 machine gun can be seen in open door. (Vietnam War period).
A U.S. Marine spreads bright red helio landing panel on ground, on Hill 557, in Khe Sanh, Vietnam. . UH34D Helicopter circles around and below Hill 557, and then seen very high above the hill. The helicopter circles close overhead and then comes in and lands. it takes off again and flies out of sight. A marine resets the red helio landing panel. (Vietnam War period).
U.S. Marines (1st Battalion, 26th Marines, A Company), wearing camouflage from natural materials, advance across the jungle in Khe Sanh, Vietnam. One Marine talks on phone. One Marine carries a portable PRC-25 back pack radio. The Marine squad moves, on trail, through the jungle growth. Squad leader points and moves followed by several others. Marine with backpack radio converses on the phone, as other squad members pass him including an African American Marine. Marines take a break. One sits on ground and smokes a cigarette. A Marine uses an entrenching tool to dig a foxhole. (Vietnam War period).
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