The simple answer to whether or not military jets can break the sound barrier is yes, if the aircraft can fly at speeds exceeding Mach 1, which is 767.269 mph. During military conflicts and when dispatched to intercept enemy or non-responsive aircraft, military jets like the Lockheed Martin F-22 Raptor, Lockheed Martin F-35 Lightning II, General Dynamics F-16 Fighting Falcon, and the Eurofighter Typhoon often break the sound barrier.