U.S. Air Force photo by Staff Sgt. Peter Reft ()

U.S. Air Force Airmen from the 18th Civil Engineer Squadron conduct a Sept. 11, commemoration ceremony at Fire Station 1 on Kadena Air Base, Japan, Sept. 11, 2019. The ceremony included a final alarm bell ringing, representing when a firefighter dies in the line of duty. The custom of rendering final honors in the New York City's fire department has been a tradition since its origin.