Marines of the 'L' company carrying M-60 machine guns and weapons in Khe Sanh area, Vietnam. They carry M-16 rifles and walk through tall bushes. A marine stands in tall grass atop small hill, firing his M-60 machine gun. Marine carrying M-16 rifle walks through bushes atop a hill. Marine with PRC-25 radio on his back rests. He lies amidst tall grass. He places cord of phone around his neck. Other marines seated in grass. (Vietnam War period).