A huge part of this was computers. The AWG-9 and the Phoenix missile changed everything about air combat. The APG-63 and AMRAAM sealed the deal on the F-15. The

A huge part of this was computers. The AWG-9 and the Phoenix missile changed everything about air combat. The APG-63 and AMRAAM sealed the deal on the F-15. The rest was just improvements through massive economic investment during the cold war era.