190311-N-JX484-112 NORTH SEA (March 11, 2019) Sailors man the rails as the guided-missile destroyer USS Gravely (DDG 107) approaches the German navy replenishment tanker FGS Spessart (A 1442) for a replenishment-at-sea, March 11, 2019. Gravely is deployed as the flagship of Standing NATO Maritime Group 1 to conduct maritime operations and provide a continuous maritime capability for NATO in the northern Atlantic. (U.S. Navy photo by Mass Communication Specialist 2nd Class Mark Andrew Hays/Released)