Tech. Sgt. Matthew Dillon, a crew chief with the 911th Aircraft Maintenance Squadron, teaches fire control techniques to the Allegheny County Airport Authority Fire Rescue team at the Pittsburgh International Airport Air Reserve Station, Pennsylvania, May 7, 2019. The firefighters needed to be trained on the C-17 Globemaster III due to the base conversion from C-130 Hercules aircraft. (U.S. Air Force Photo by Senior Airman Grace Thomson)