161004-N-YU572-141 PACIFIC OCEAN (Oct. 4, 2016) A shell fired from the 5 in. gun pierces the sky during a live fire exercise held aboard the guided-missile destroyer USS Momsen (DDG 92). The guided-missile destroyers USS Spruance (DDG 111), USS Decatur (DDG 73) and Momsen are deployed in support of maritime security and stability in the Indo-Asia-Pacific as part of a U.S. 3rd Fleet Pacific Surface Action Group (PAC SAG) under Commander, Destroyer Squadron (CDS) 31. (U.S. Navy photo by Chief Petty Officer Jay C. Pugh/Released)