190506-N-FM230-0015 NATIONAL HARBOR, Md. (May 6, 2019) Marine Corps Deputy Commandant of Aviation Lt. Gen. Steven Rudderl speaks during the Future of Aviation panel at the Sea-Air-Space (SAS) Exposition. The annual exposition, hosted by the Navy League of the United States, brings together key military decision makers, the U.S. defense industrial base, and private-sector U.S. companies for an innovative, educational, and professional maritime based event. (U.S. Navy photo by Mass Communication Specialist Seaman Apprentice Richard Rodgers/Released)