Two men in camouflage military uniforms work on an inflated boat while standing in a shallow body of water. - Marines assigned to the III Expeditionary Operations Training Group, III Marine Expeditionary Force, test custom built unmanned surface vessels at Naval Base White Beach, Okinawa, Japan, March 9, 2026. The systems were evaluated by employing onboard communication systems on rubber rafts in varying sea states by analyzing different haul types and designs.