Dassault Mirage F1 was developed as a successor the this aircraft that holds the distinction of being the first Western European combat aircraft to exceed what in horizontal flight?
Dassault Mirage F1:  It was developed as a successor to the popular Mirage III family. Dassault Mirage III:  It holds the distinction of being the first Western European combat aircraft to exceed Mach 2 in horizontal flight.
i don't know