99th Expeditionary Reconnaissance Squadron maintainers prepare a U-2 Dragon Lady pilot for a mission in support of Operation Inherent Resolve from Al Dhafra Air Base, United Arab Emirates, Mar. 15, 2019. Commonly referred to as the most difficult aircraft to fly in the world, the U-2 Dragon Lady has been host to less than fifteen-hundred pilots since the first flight in 1955. (U.S. Air Force photo by Senior Airman Gracie I. Lee)