U.S. Air Force 2nd Lt. Michelle Christensen, a 63rd Air Refueling Squadron pilot, operates the controls of a KC-135 Stratotanker during a refueling mission Nov. 4, 2019. Christensen successfully completed her first flight, while providing air refueling support to the national global strike and strategic deterrence mission. (U.S. Air Force photo by Airman 1st Class Shannon Bowman)