Spent 7.62 caliber shell casings fired by U.S. Marines assigned to 2d Low Altitude Air Defense Battalion (2D LAAD), Marine Medium Tiltrotor Squadron 264 (reinforced) are piled next to an M-240B machine gun during weapons training near Marine Corps Base Stone Bay, N.C., Feb. 15, 2016. 2D LAAD conducted the training in preparation for deployment with the 22nd Marine Expeditionary Unit. (U.S. Marine Corps photo by Cpl. Jodson B. Graves/Released)
<br>Unit: 2nd Marine Aircraft Wing Combat Camera
Cpl. Jodson Graves
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