An F-15EX Eagle II aircraft assigned to 96th Test Wing, Eglin Air Force Base, Florida taxis towards the runway prior to take off at Nellis Air Force, Nevada, Oct. 21, 2021. The aircraft are at Nellis AFB to conduct Integrated Test and Evaluation along with F-15C aircraft from the 123rd Fighter Squadron, Portland Air National Guard Base, Oregon. (U.S. Air Force photo by William R. Lewis)