The tri-service National Maritime Strategy, released by the Navy, Marine Corps and Coast Guard Thursday, calls for the U.S. to focus on growing threats by China and Russia. The strategy, titled " Advantage at Sea ," calls for the U.S. to generate integrated all-domain naval power, modernize the fleet and strengthen alliances and partnerships. Marine Corps Commandant Gen. David Berger, Chief of Naval Operations Adm. Michael Gilday and Coast Guard Commandant Adm. Karl Schultz wrote in the document's foreword that...