Tech. Sgt. Eduardo Castro, 379th Expeditionary Civil Engineer Squadron station captain and Airman 1st Class Samuel Olombo, 379th ECES firefighter tests function checks a fire truck on June 6, 2019, at Al Udeid Air Base, Qatar. During the function checks they also inspect and start the truck to ensure the vehicle is ready for use. (U.S. Air Force photo by Staff Sgt. Ashley L. Gardner)