Philippine Sea Live-Fire The Arleigh Burke-class guided-missile destroyer USS McCampbell fires an MK 45 5-inch lightweight gun during a live-fire exercise in the Philippine Sea, Jan. 17, 2016. The McCampbell is on patrol in the U.S. 7th Fleet area of operation to support security and stability in the Indo-Asia-Pacific region. Navy photo by Ensign Soon Kwon SHARE: Download: Full Size (1.52 MB) Credit: ENS Soon Kwon VIRIN: 160117-N-JU970-863.JPG Photo Gallery