An Airman pulls chocks away after hot-refueling a 335th Expeditionary Fighter Squadron F-15E Strike Eagle at Al Udeid Air Base, Qatar, Feb. 13, 2021. The hot-refueling was part of an integrated combat turn exercise specifically meant to test Airmen deployed as an instrument of Dynamic Force Employment. (U.S. Air National Guard photo by Tech. Sgt. Brigette Waltermire)