Artillery Marines with Bravo Battery, 1st Battalion, 12th Marine Regiment, prepare the M777 155 mm Howitzer system for night fire operations during Operation Spartan Fury 14.2 at Pohakuloa Training Area, Hawaii, March 15, 2014.(U.S. Marine Corps photo by Cpl. Nathan Knapke) - Artillery Marines with Bravo Battery, 1st Battalion, 12th Marine Regiment, prepare the M777 155 mm Howitzer system for night fire operations during Operation Spartan Fury 14.2 at Pohakuloa Training Area, Hawaii, March 15, 2014.(U.S. Marine Corps photo by Cpl. Nathan Knapke)