The chairman speaks at 12:30 p.m. EDT at the Sea-Air-Space Luncheon at the Navy League Sea-Air-Space Symposium, Gaylord National Resort & Convention Center, National Harbor, Maryland. Chief of Naval Operations Adm. Michael M. Gilday and Commandant of the Marine Corps Gen. David Berger discuss "Tri-Service Maritime Leadership" at the symposium at 9:30 a.m. EDT. Both events will be livestreamed on Defense.gov and broadcast on Channel 2 in the Pentagon.