MAYPORT, Fla. (NNS) -- Chief of Naval Operations (CNO) Adm. Gary Roughead announced today the reestablishment of U.S. 4th Fleet and assigned Rear Adm. Joseph D. Kernan, currently serving as Commander, Naval Special Warfare Command, as its first commander. U.S. 4th Fleet will be responsible for U.S. Navy ships, aircraft and submarines operating in the U.S. Southern Command (SOUTHCOM) area of focus, which encompasses the Caribbean, and Central and South America and the surrounding waters. Located in Mayport, Fla., and dual-hatted with Commander, U.S. Naval Forces Southern Command (COMUSNAVSO), U.S. 4th Fleet reestablishment addresses the increased role of maritime forces...