ATLANTIC OCEAN.
Gunner's Mate 3rd Class Julian Castanos loads a .50-caliber machine gun for a live-fire gunnery exercise aboard the Arleigh Burke-class guided-missile destroyer USS Ross (DDG 71) during exercise Joint Warrior 18-1 April 27, 2018. Ross is participating in Joint Warrior, a U.K.-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). Original public domain image from Flickr.