U.S. Air Force Capt. Ethan Cross (left), and U.S. Air Force Capt. Nick Flaute, KC-135 Stratotanker pilots assigned to the 54th Air Refueling Squadron, taxi out to the runway during an air defense exercise, October 9, 2019, at Altus Air Force Base, Okla. For the first time, the 97th Air Mobility Wing partnered with the North American Aerospace Defense Command (NORAD) for a simulated air defense training exercise. (U.S. Air Force photo by Airman 1st Class Breanna Klemm)