Navy Petty Officer 3rd Class Marcus Seaverns, from Norristown, Pa., scans for surface contacts on the port bridge wing of the guided missile destroyer USS Mason during an anti-submarine formation exercise with the guided missile destroyer USS Nitze, and Australian ships RFA Fort Victoria -- an auxiliary oiler replenishment ship -- and the frigate HMAS Perth, Aug. 28, 2016. Mason, deployed as part of the Eisenhower Carrier Strike Group, is supporting maritime security operations and theater security cooperation efforts in the U.S. 5th Fleet area of operations. Navy photo by Petty Officer 3rd Class Janweb B. Lagazo