POHAKULOA TRAINING AREA, Hawaii — Field artillerymen with Charlie Battery, 1st Battalion, 12th Marine Regiment, load a round into the M777 155 mm howitzer system after ensuring the round had the correct charge, during Operation Spartan Fury at Pohakuloa Training Area, Hawaii, Feb. 21. (U.S. Marine Corps photo by Lance Cpl. Nathan Knapke) - POHAKULOA TRAINING AREA, Hawaii — Field artillerymen with Charlie Battery, 1st Battalion, 12th Marine Regiment, load a round into the M777 155 mm howitzer system after ensuring the round had the correct charge, during Operation Spartan Fury at Pohakuloa Training Area, Hawaii, Feb. 21. (U.S. Marine Corps photo by Lance Cpl. Nathan Knapke)