Stealth fighters represent the peak of modern military aviation, combining decades of engineering, advanced materials, and cutting-edge technology. So when Iran unveiled the F-313 Qaher in 2013 and claimed it was a next-generation stealth fighter,

Sixth-generation jets will be very hard to detect, boast cutting-edge avionics and weapons, and integrate with new drone designs.

An F-15 Eagle is an all-weather tactical fighter designed to penetrate enemy defense, according to the Air Force's website.