Fire Controlman 3rd Class Thomas Colton, right, and Fire Controlman 2nd Class Joshua Bradley, left, disassemble the local shooter setup on a MK 38 25 mm machine gun during a gunnery demonstration aboard the USS Donald Cook (DDG 75). Donald Cook, an Arleigh Burke-class guided-missile destroyer, home-ported in Rota, Spain, 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 2nd Class Karolina A. Oseguera/Released)