190506-N-TV402-0004 NATIONAL HARBOR, Md. (May 06, 2019) Chief of Naval Operations Adm. John Richardson delivers his keynote remarks during 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 2nd Class Timothy Hale/Released)