Transcription: Arlington Memorial Amphitheater honors our country's armed forces. It's used for memorial services. With the amphitheater as a backdrop, the Tomb of the Unknowns is the simplest yet one of the most affecting of all the monuments in the area of the nation's capital. Originally, the monument was called the Tomb of the Unknown Soldier. Under it lay the body of an unknown American soldier killed in World War I. Specially selected soldiers are on duty at the tomb 24 hours a day. The guards are changed on a regular schedule in a precise, formalized and very moving ceremony.
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