The Changing of the Guard at the Tomb of the Unknown Soldier

The Tomb of the Unknown Soldier is guarded 24 hours a day, 365 days a year, and in any weather by Tomb Guard sentinels.  Sentinels, all volunteers, are considered to be the best of the elite 3rd U.S. Infantry Regiment, headquartered at Fort Myer, Va.  Video by AiirSource Military