180423-N-RG482-036 ATLANTIC OCEAN (April 23, 2018) The Arleigh Burke-class guided-missile destroyer USS Gravely (DDG 107) participates in exercise Joint Warrior 18-1 off the coast of Scotland. Joint Warrior is a United Kingdom-led multinational exercise that exercises interoperability and cooperation in all applicable warfare areas. (U.S. Navy photo by Mass Communication Specialist 1st Class Kyle Steckler/Released)