AMMUNITION ROUND U.S. Navy Seaman Desmond Summers takes out a round from an ammunition bin for the Mk 45 5-inch lightweight gun aboard the guided-missile destroyer USS Arleigh Burke in the Atlantic Ocean, Feb. 26, 2014. The Burke is supporting maritime security operations and theater security cooperation efforts in the U.S. 5th and 6th Fleet area of operations. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 158796-A-UAJ57-889.jpg Photo Gallery