FULL-DRESS MARINES - U.S. Marine Corps participants in the 2009 Presidential Inaugural Parade rehearsal make their way down Pennsylvania Avenue in Washington, D.C., Jan. 11, 2009. More than 5,000 men and women in uniform are providing military ceremonial support to the presidential inauguration, a tradition dating back to George Washington's 1789 inauguration. DoD photo by Tech. Sgt. Suzanne M. Day, U.S. Air Force

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