190515-N-JX484-887 BALTIC SEA (May 15, 2019) Chief Boatswain's Mate Lance Stoeckel, left, and Gunner's Mate 3rd Class Machilem Oliver participate in a vertical replenishment training exercise with an MH-60R Seahawk helicopter from the Spartans of Helicopter Maritime Strike Squadron (HSM 70) on the flight deck of the guided-missile destroyer USS Gravely (DDG 107). 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)