150131-N-ZE250-015 ATLANTIC OCEAN - Sailors in the port hangar bay aboard Arleigh-Burke Class Guided Missile Destroyer USS Jason Dunham prepare for an aircraft firefighting drill while on deployment Jan. 31. USS Jason Dunham is currently underway in support of Operation Martillo, a joint operation with the U.S. Coast Guard and partner nations, within the 4th Fleet area of responsibility.