191008-N-HE318-1038 SOUTH CHINA SEA (Oct. 8, 2019) The Ticonderoga-class guided-missile cruiser USS Antietam (CG 54) fires a Mark 45 5-inch gun during a live-fire exercise. Antietam is forward-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 William McCann/Released)