well sire
in WW2 our fighter planes were not exactly up to the standards of the time. The Luftwaffe had much better fighters.
It was only until the P 51's and some of the P38s started replacing the old nellies that our fighter pilots were able to compete with the krauts and had equal if not better fighter planes than both the Germans and the Japs.
The Tuskegee Airmen were a brilliant example of talented pilots with excellent planes. Same can be said for the boys over in in the Pacific..
The lesson learned from that was to not fall behind in technology in important defense items like the fighter jets, electronics, sensors, etc...
Even a blind squirrel gets an acorn every now and then.. Same is true for our enemies getting a rare take down of one of our jets.