U.S. Marines with 2nd Paltton, 3rd Low Altitude Anti-Air Defense Battalion, Special Purpose Marine Air Ground Task Force – Crisis Response – Central Command, fires a M240B machine gun during an unknown distance range in the Central Command area of operation, March 11, 2015. The Marines of 3rd LAAD conducted a training exercise that involved squad attacks, platoon attacks, and live fire ranges with rifles and machine guns. (U.S. Marine Corps official photo by Lance Cpl. Skyler E. Treverrow/Released)