190406-N-YS418-020 SEA OF HEBRIDES (April 6, 2019) Chief Damage Controlman Nathaniel Williams, a safety observer, oversees sailors standing by to receive lines aboard the guided-missile destroyer USS Gravely (DDG 107) during a routine replenishment-at-sea with the Military Sealift Command dry cargo and ammunition ship USNS Medgar Evers (T-AKE 13). Gravely is underway on a 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 Lt. Izaac Hite/Released)