FORT POLK, La. – Machine gunners with 1st Battalion, 23rd Marine Regiment, prepare ammunition during a live-fire range here, June 3. Marines took part in numerous live-fire ranges, which culminated in a platoon-sized attack as a part of the unit’s annual training. The battalion’s machine gunners were responsible for providing suppressing fire for Marines maneuvering to their notional objectives. (Photo by Cpl. John M. McCall)