9/11 Tower Run
A tower run participant runs up a flight of stairs during the sixth annual Yokota Fire Emergency Services 9/11 Tower Run, Sept. 11, 2018. Each participant ran up and down to tower to honor the first responders who lost their lives in the terrorist attacks in New York City, Sept. 11, 2001. (U.S. Air Force photo by Senior Airman Gabrielle Spalding)