U.S. Navy Adm. Daryl Caudle, the 34th Chief of Naval Operations, United Kingdom Gen. Sir. Gwyn Jenkins, the First Sea Lord and Chief of the Naval Staff, and U.S. Marine Corps Gen. Bradford J. Gering, the 38th Assistant Commandant of the Marine Corps, meet on the 11th anniversary of tri-service Delivering Combined Seapower charter in the Pentagon at Arlington, Virginia, Oct. 30, 2025. The charter is intended to achieve the Service Chiefs’ combined vision for US-UK interoperability moving toward interchangeability. (U.S. Marine Corps photo by Lance Cpl. Juaquin Greaves)