170916-N-UB406-060 ATLANTIC OCEAN (Sept. 16, 2017) The Arleigh Burke-class guided-missile destroyer USS Mitscher (DDG 57) fires its phalanx close-in weapons system during a live-fire exercise. Mitscher is conducting naval operations in the U.S. 6th Fleet area of operations in support of U.S. national security interests in Europe. (U.S. Navy photo by Mass Communication Specialist Seaman Cameron M. Stoner/Released)