Government Technology/News Navy Adds 3rd ‘Overlord’ Ship to Unmanned Surface Vessel Fleet; Rear Adm. Casey Moton Quoted The U.S. Navy on Tuesday christened its latest “Overlord” unmanned surface vessel during a ceremony held at the U.S. Naval Academy in Annapolis, Maryland. Gulf Craft-built Mariner is managed by Leidos and More by Jane Edwards August 24, 2022