A wounded US paratrooper grimaces in pain as he awaits medical evacuation at base camp in the A Shau Valley near the Laos border in South Vietnam on May during the Vietnam War The st Airborne Division attacked the North Vietnamese Communist forces at the foot Ap Bia Mountain or Hill in the day battle known as Hamburger Hill by the GIs Fortysix Americans were killed before the mountain was taken and the death toll for North Vietnamese is around br