The training helicopter used by firefighters from the 18th Civil Engineer Squadron burns while smoke cans are used to simulate a helicopter crash at the Okinawa Athletic Park, Feb. 23, 2018, in Okinawa City, Japan. Local Japanese firefighters and first-responders worked with 18th CES to prepare for a variety of scenarios involving many separate agencies. (U.S. Air Force photo by Staff Sgt. Benjamin Sutton)