Air Force Senior Airman Jean Alonso waits to marshal an F-16C Fighting Falcon aircraft at Bagram Airfield, Afghanistan, Oct. 5, 2016. Alonso is a crew chief assigned to the 455th Expeditionary Aircraft Maintenance Squadron. The crew chiefs are the aircraft caretakers, inspecting and preparing aircraft they are ready to fly at a moment’s notice. Air Force photo by Senior Airman Justyn M. Freeman