180308-N-AZ808-1043 ARABIAN GULF (March 8, 2018) The Arleigh Burke-class guided-missile destroyer USS Halsey (DDG 97) fires its Mark 45 5-inch gun during a live-fire exercise. Halsey is deployed with the Theodore Roosevelt Carrier Strike Group to the U.S. 5th Fleet area of operations in support of maritime security operations to reassure allies and partners and preserve the freedom of navigation and the free flow of commerce in the region. (U.S. Navy photo by Mass Communication Specialist 3rd Class Nicholas Burgains/Released)