151117-N-AC237-509 VIRGINIA BEACH, Va. (Nov. 17, 2015) Sailors from Mobile Diving and Salvage Unit (MDSU) TWO monitor the MK 18 underwater unmanned vehicle (UUV) during a training evolution at Joint Expeditionary Base Little Creek-Fort Story. The training helps provide MDSU TWO Sailors with famililiarization of the MK 18 UUV for future missions. (U.S. Navy photo by Mass Communication Specialist 2nd Class Benjamin Wooddy/Released)