A helicopter fires on a target at a range during training with the Expeditionary Warfare Training Group Atlantic aboard Marine Corps Base Camp Lejeune, N.C March 25, 2015. The mortar teams marked a target with phosphorous shells which emitted clouds of smoke to indicate which target the pilots were to aim for while two helicopters peppered the targets with machine gun and missile fire. (U.S. Marine Corps photo by Pfc. David N. Hersey/Released)