23rd International Seapower Symposium Sep. 18, 2018 8:00 a.m. U.S. Naval War College, 686 Cushing Road, Newport, RI 02841 The International Seapower Symposium (ISS) is co-hosted by the Chief of Naval Operations and the President, U.S. Naval War College. It occurs in every second year. Attendees include chiefs of the navies and coast guards from nations around the globe.