In one year they get 20 new fighters. And then it starts all over after a year. Don't destroy the fighters. Let them live with strength 1 or 2. They come back at full strength. The same thing for Germany. Look in data and then for events for the country. If the AI falls below a specific number of fi...

I am playing as Germany the Grand campaign. I have destroyed in turn 15 the last fighter in the west from the UK. I think that in turn 13 or 14 I destroyed 2 other fighters. The French have no aircraft at al in the west (they are destroyed). So I have complete airsupremacy in the west on turn 16. No...