190311-N-WI365-1002 PACIFIC OCEAN (March 11, 2019) The Arleigh Burke-class guided-missile destroyer USS Milius (DDG 69) transits the Pacific Ocean, March 11, 2019, during a training exercise with other U.S. Navy warships. U.S. Navy warships train together to increase the tactical proficiency, lethality, and interoperability of participating units in an Era of Great Power Competition. (U.S. Navy photo by Mass Communication Specialist 2nd Class Markus Castaneda/Released)