150218-N-ZE250-097 CARIBBEAN SEA - (Feb.18, 2015) Damage Controlman 2nd Class Neal Fierro and Gas Turbine Systems Mechanical 3rd Class Connor Russ man the shaft control unit aboard the Arleigh-Burke class guided-missile destroyer USS Jason Dunham (DDG 109). Jason Dunham is underway supporting Operation Martillo, a joint operation with the U.S. Coast Guard and partner nations in the U.S. 4th Fleet area of responsibility. (U.S. Navy photo by Mass Communication Specialist 3rd Class Weston Jones/Released)