American army combat platoon leader Second Lieutenant John Libs (center) of 2nd platoon, C Company, 2d Battalion, 16th Infantry Regiment, 1st Division, surveys the situation with his men from the relative safety of a watery rice paddy as they prepare to advance on a Viet Cong sniper position, Vietnam, mid 1960s. Libs and the rest of 2nd Platoon participated in the battle of Xa Cam My/Operation Abilene in April 1966 during which Charlie Company suffered 82% casualties. (Photo by Hulton Archive/Getty Images)