INDIAN OCEAN (Nov. 22, 2017) Gunner’s Mate 3rd Class Joshua M. Hardin places a protective cover over the barrel of a MK 38 MOD 1 automatic machine gun following a live-fire gunnery exercise aboard the Arleigh Burke-class guided-missile destroyer USS Preble (DDG 88). Preble is conducting maritime security, forward presence and theater security operations. (U.S. Navy photo by Mass Communication Specialist Seaman Morgan K. Nall/Released)

- Image ID: KK5TN2
INDIAN OCEAN (Nov. 22, 2017) Gunner’s Mate 3rd Class Joshua M. Hardin places a protective cover over the barrel of a MK 38 MOD 1 automatic machine gun following a live-fire gunnery exercise aboard the Arleigh Burke-class guided-missile destroyer USS Preble (DDG 88). Preble is conducting maritime security, forward presence and theater security operations. (U.S. Navy photo by Mass Communication Specialist Seaman Morgan K. Nall/Released)
Archisto Library / Alamy Stock Photo
Image ID: KK5TN2