1605025-N-SU278-900 PACIFIC OCEAN (May 25, 2016) – The guided-missile destroyer USS Spruance (DDG 111) fires its Mark 45, 5” gun during a self defense live fire exercise. Spruance, along with the guided-missile destroyers USS Momsen (DDG 92) and USS Decatur (DDG 73), and embarked “Devil Fish” and “Warbirds” detachments of Helicopter Maritime Strike Squadron (HSM) 49, are deployed as part of a U.S. 3rd Fleet Pacific Surface Action Group (PAC SAG) under Destroyer Squadron (CDS) 31. (U.S. Navy photo by Boatswain’s Mate 3rd Class Daniel Erb/Released)