A wounded U.S. paratrooper of the 101st Airborne Division is helped through a blinding rainstorm by two medics after being evacuated from Dong Ap Bia during the 10-day battle for Hamburger Hill, May 1969. U.S. and South Vietnamese forces eventually dislodged communist forces from Dong Ap Bia, but the action touched off further political controversy in the United States. (AP Photo/Hugh Van Es)