170303-N-CS953-030 ARABIAN SEA (March 3, 2017) Logistics Specialist Seaman Johnathan Diaz relays messages to and from the damage control central and repair lockers during a main space fire drill aboard the Arleigh Burke-class guided-missile destroyer USS Mahan (DDG 72). The ship is deployed to the U.S. 5th Fleet area of operations in support of maritime security operations designed to reassure allies and partners, preserve the freedom of navigation and the free flow of commerce in the region. (U.S. Navy photo by Mass Communication Specialist 1st Class Tim Comerford/Released)