US Navy 110912-N-BC134-176 The MK-45 5-inch-54-caliber lightweight gun of the guided-missile cruiser USS Bunker Hill (CG 52) is fired during a live

PACIFIC OCEAN (Sept. 12, 2011) The MK-45 5-inch/54-caliber lightweight gun of the guided-missile cruiser USS Bunker Hill (CG 52) is fired during a live-fire exercise. Bunker Hill is conducting a three-week composite training unit exercise in preparation for a deployment to the western Pacific Ocean. (U.S. Navy photo by Mass Communication Specialist Seaman John Grandin/Released)