With a focus on operating with "infrequent human interaction," the U.S. 3rd Fleet is testing uncrewed aircraft and vessels in a multidomain exercise off the coast of California that prioritizes warfighting capabilities on, above and below the sea. Unmanned Systems Integrated Battle Problem (UxS IBP) 23.1, which concludes Friday off San Clemente Island, is the second warfighting rehearsal by the U.S. Pacific Fleet for vetting uncrewed systems for their capabilities in surveillance and reconnaissance, command and control and re-constituting intelligence...