U.S. Army soldiers of the 1st Infantry move inside jungles in Lai Khe, South Vietnam. A rifled guard on alert in jungle, another soldier talks to his commander on a wireless radio set. The two soldiers lead a troop of soldiers inside the swamps of the jungle. Background audio includes wild track sounds of the unit's squad radio communications between pilots and command. Involved helicopter company in audio is 173rd Assault Helicopter Company (Robin Hoods) (Vietnam War period).
U.S. Army 1st Infantry soldiers move inside the jungles in Lai Khe, South Vietnam. Soldiers sit in a group at the jungle. One of them demonstrates the use of wireless radio telephone sets. The other soldiers listen to him carefully. Views of the radio backpack unit. One soldier holds portable radio units and examines them. He holds them near the backpack unit. (Vietnam War period).