Between October 18 and 25, 2021, the United States Air Force’s brand new Boeing F-15EX Eagle II carried out its maiden operational test mission. The latest iteration of the F-15 air superiority aircraft flew alongside F-15Cs and F-15Es at Nellis Air Force Base in Florida.

The ongoing tests evaluate the aircraft’s capacity to operate alongside other combat aircraft, including the previous models of F-15s it will eventually replace.