WARNER SPRINGS, Calif. (April 25, 2021) Operators and engineers prepare to launch a high-altitude balloon as part of U.S. Pacific Fleet's Unmanned Systems Integrated Battle Problem (UxS IBP) 21. UxS IBP 21 integrates manned and unmanned capabilities into challenging operational scenarios to generate warfighting advantages. (U.S. Navy photo by Mass Communication Specialist 1st Class David Mora)