U.S. Marine Corps Cpl. Richard Rosales, a rifleman with 2nd platoon, Company A, 1st Battalion, 4th Marines, 5th Marine Regiment, fires his M-16A4 Assault Rifle during range 410 on Marine Corps Air Ground Combat Center Twentynine Palms, Calif., Dec. 1, 2012. Range 410 is a platoon fire and maneuver exercise held as part of Exercise Steel Knight. Exercise Steel Knight is an annual training exercise held to demonstrate the 1st Marine Division's abilities in a simulated combat scenario. (U.S. Marine Corps photo by Cpl. Jonathan R. Waldman/Released)
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