Airmen of the Air Force cordon march down Pennsylvania Avenue in Washington to their designated location prior to the start of the 57th Presidential Inaugural Parade Jan. 21, 2013. The cordon was made up of more than 200 Airmen who reported as early as 3 a.m. and stood along the 1.5-mile parade route to provide honors to the president as commander in chief, the vice president, and the National Colors. (U.S. Air Force photo by 1st Lt. Ashleigh Peck)