190704-N-RH019-0010 SOUTH CHINA SEA (July 4, 2019) The Arleigh Burke-class guided-missile destroyer USS Momsen (DDG 92) fires its Mark-38 25 mm machine gun system during a live-fire at night in celebration of the 4th of July. Momsen is deployed to the U.S. 7th Fleet area of operations in support of security and stability in the Indo-Pacific region (U.S. Navy photo by Mass Communication Specialist 2nd Class Sean Rinner/Released)