Airman First Class Emily Clark, F-15E Strike Eagle crew chief assigned to the 335th Aircraft Maintenance Unit, Seymour Johnson Air Force Base, North Carolina, prepares to launch an F-15E at Nellis Air Force Base, Nev., Aug. 13, 2020. Flying units from around the Department of Defense deploy to Nellis AFB to participate in Red Flag exercises that are typically held three times a year and organized by the 414th Combat Training Squadron.