NATIONAL HARBOR, MD -- The Navy plans to expand unmanned operations to the 4th Fleet, drawing on experimentation efforts that it has pioneered with Task Force 59 in the 5th Fleet. Navy Secretary Carlos Del Toro made the announcement today during the Navy League’s Sea-Air-Space conference, saying new, unmanned systems integrated into the Florida-based 4th Fleet will initially focus on countering narcotics, human trafficking and illegal fishing in U.S. Southern Command’s area of operation. “The goal here is to have...