9/11 Remembrance Tower Run
Master Sgt. Arthur Scruggs, 374th Operations Support Squadron 1st sergeant, runs up a flight of stairs during the 9/11 Tower Run, Sept. 11, 2019 at Yokota Air Base, Japan. The Tower Run represented the 110 floors of the Twin Towers that emergency responders ascended after the first aircraft attack of Sept. 11, 2001. (U.S. Air Force photo by Machiko Arita)