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PACIFIC OCEAN (April 21, 2021) Zumwalt-class guided-missile destroyer USS Michael Monsoor (DDG 1001) participates in U.S. Pacific Fleet's Unmanned Systems Integrated Battle Problem (UxS IBP) 21, April 21. UxS IBP 21 integrates manned and unmanned capabilities into challenging operational scenarios to generate warfighting advantages. (U.S. Navy photo by Chief Mass Communication Specialist Shannon Renfroe)