The U.S. Air Force Band marches in the 2009 Presidential Inaugural Parade rehearsal down Pennsylvania Avenue from the U.S. Capitol to the White House on Jan. 11. More than 5,000 men and women from the Army, Air Force, Navy and Marine Corps are providing military ceremonial support for the presidential inauguration, a tradition dating back to George Washington’s 1789 inauguration. (U.S. Air Force photo by Senior Airman Renae Kleckner)