120829-N-AP176-031GULF OF OMAN (Aug. 28, 2012) The guided-missile destroyer USS Nitze (DDG 94) fires its MK45 5-inch/.54-caliber lightweight gun during a live-fire exercise. Nitze is deployed as part of the Enterprise Carrier Strike Group to the U.S. 5th Fleet area of responsibility conducting maritime security operations, theater security cooperation efforts and support missions for Operation Enduring Freedom. (U.S. Navy photo by Mass Communication Specialist 3rd Class Jeff Atherton/Released)