ATLANTIC OCEAN (June 9, 2018) A Phalanx 20 mm close-in weapons system (CIWS) is fired aboard the aircraft carrier USS George H.W. Bush (CVN 77). The ship is underway conducting routine training exercises to maintain carrier readiness. (U.S. Navy photo by Mass Communication Specialist 3rd Class Jerrett Ferrell/Released) 180609-N-TX451-0001
