U.S. Marines and Afghan forces board a CH-53E Super Stallion helicopter on Camp Bastion, Helmand province, Afghanistan, Aug. 20, 2013, as they prepare to conduct an air interdiction exercise. The Marines are assigned to Golf Company, 2nd Battalion, 8th Marines, and the helicopter crew is assigned to Marine Heavy Helicopter Squadron 461. U.S. Marine Corps photo by Sgt. Gabriela Garcia