Soldiers Carrying Stretcher

5/18/1969-A Shau Valley, South Vietnam: A quartet of U.S. 101st Air Division troopers keep low as they rush a stretcher-borne wounded comrade to a medical aid station during the battle for Hamburger Hill. New fighting erupted about the controversial hill on May 23.

Troops from the 101st Airborne Division run a wounded soldier to medical help on May 18,1969, during the Battle of Hamburger Hill. (Bettmann/Getty Images)