190418-N-JX484-246 BALTIC SEA (April 18, 2019) The guided-missile destroyer USS Gravely (DDG 107) approaches the German navy replenishment tanker FGS Rhoen (A1443) in preparation for a replenishment at sea. Gravely is underway on a regularly-scheduled deployment 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)