U.S. Air Force Airmen assigned to the 354th Fighter Wing prepare to lower state flags during the POW/MIA Recognition Day Retreat Ceremony, Sept. 16, 2016, at Heritage Park on Eielson Air Force Base, Alaska. The ceremony is held every year to honor the POW’s and those MIA. (U.S. Air Force photo by Airman Isaac Johnson)

U.S. Air Force Airmen and civilians assigned to the 354th Fighter Wing salute the POW/MIA flag during the POW/MIA Recognition Day Retreat Ceremony, Sept. 16, 2016, at Heritage Park on Eielson Air Force Base, Alaska. POW/MIA Recognition day is typically recognized on the third Friday of September every year. (U.S. Air Force photo by Airman Isaac Johnson)

Members of the 354th Fighter Wing and Ben Eielson Junior/Senior High School Air Force Junior ROTC Honor Guardsmen lower the American and POW/MIA flags during the POW/MIA Recognition Day Retreat Ceremony, Sept. 16, 2016, at Heritage Park on Eielson Air Force Base, Alaska. The first POW/MIA Recognition Day was in 1979. (U.S. Air Force Photo by Airman Isaac Johnson)

U.S. Air Force Airmen assigned to the 354th Fighter Wing finish the last leg of a run held in observance of POW/MIA Recognition Day, Sept. 16, 2016, at Heritage Park on Eielson Air Force Base, Alaska. Members of the Iceman team ran in 30 minute intervals for a total of 24 hours. (U.S. Air Force photo by Airman Isaac Johnson)