A U.S. Marine attached to 2nd Platoon, A Company, 1st Battalion, 3rd Marine Regiment - "The Lava Dogs" fires an M240B Machine Gun at enemy targets during Lava Viper aboard Pohakuloa Training Area, Hi., May 29, 2015. Marines of 2nd Platoon are tasked with assaulting an enemy compound. (U.S. Marine Corps photo by Cpl. Ricky S. Gomez/Released)