40 years on, Vietnam troop withdrawal remembered - Article Photos 13/15

In this March 28, 1973 photo, a Viet Cong observer of the Four Party Joint Military Commission counts U.S. troops as they prepare to board jet aircraft at Saigonís Tan Son Nhut airport. As the last U.S. combat troops left Vietnam 40 years ago, angry protesters still awaited them at home. North Vietnamese soldiers took heart from their foes' departure, and South Vietnamese who had helped the Americans feared for the future. While the fall of Saigon two years later — with its indelible images of frantic helicopter evacuations — is remembered as the final day of the Vietnam War, Friday marks an anniversary that holds greater meaning for many who fought, protested or otherwise lived it. (AP Photo/Neal Ulevich)