160930-N-PO203-428 VIRGINIA BEACH, Va. (Sep. 30, 2016 Two unmanned rigid-hull inflatable boats operate autonomously during an Office of Naval Research (ONR)-sponsored demonstration of swarmboat technology held at Joint Expeditionary Base Little Creek-Fort Story. During the demonstration a total of four boats, using a system called CARACaS (Control Architecture for Robotic Agent Command Sensing), operated autonomously during various scenarios designed to identify, trail or track a target of interest. (U.S. Navy photo by John F. Williams/Released)