Airmen run with the POW/MIA flag in the early morning hours during a 24-hour run at Schriever Air Force Base, Colorado, Sept. 19, 2018. Airmen from various squadrons continuously ran with the POW/MIA flag in 30 minute intervals, with more than 70 participants carrying the flag for a total of 120 miles. (U.S. Air Force photo by Kathryn Calvert)