Player Embed Code: Download Embed Share Procession Commemorates 100th Anniversary of the Tomb of the Unknown Soldier Department of War Nov. 11, 2021 | 23:50 Members of the 3rd U.S. Infantry Regiment, known as “The Old Guard”; the Marine Corps Ceremonial and Guard Company; the Air Force Honor Guard; the Navy Honor Guard; the U.S. Army Band, known as “Pershing’s Own”; and Coast Guard Honor Guard participate in a full honors procession commemorating the centennial anniversary of the Tomb of the Unknown Soldier.