9/11 Remembrance Tower Run
A ceremonial bell is displayed next to firefighting gear during the 9/11 Tower Run, Sept. 11, 2019 at Yokota Air Base, Japan. The 374th Civil Engineer Squadron fire and emergency services flight hosted the Tower Run in honor of the emergency responders who lost their lives on Sept. 11, 2001. (U.S. Air Force photo by Machiko Arita)