Marines with Charlie Compnay, 1st Battalion, 8th Marine Regiment, conduct patrols through an urban training town during a counter improvised explosive device training exercise, aboard Marine Corps Base Camp Lejeune, North Carolina, April 22, 2015. The Marines were faced with the threat of simulated improvised explosive devices and mock-enemies throughout their patrols. They wore masks to protect their faces while using simulated rounds to suppress the enemies. (U.S. Marine Corps photo by Cpl. Kaitlyn Klein/Released) - Marines with Charlie Compnay, 1st Battalion, 8th Marine Regiment, conduct patrols through an urban training town during a counter improvised explosive device training exercise, aboard Marine Corps Base Camp Lejeune, North Carolina, April 22, 2015. The Marines were faced with the threat of simulated improvised explosive devices and mock-enemies throughout their patrols. They wore masks to protect their faces while using simulated rounds to suppress the enemies. (U.S. Marine Corps photo by Cpl. Kaitlyn Klein/Released)