170624-N-AX638-0101 PACIFIC OCEAN (June 24, 2017) The Arleigh Burke-class guided-missile destroyer USS Howard (DDG 83) fires its Mark 45 5-inch gun during a live-fire exercise. The ship is on an underway period in the U.S. 7th fleet are of operations. The U.S. Navy has patrolled the Indo-Asia-Pacific routinely for more than 70 years promoting regional peace and security. (U.S. Navy photo by Mass Communication Specialist 2nd Class Tyler Preston/Released)