It always been said everywhere that the WWI was "Grey vs. Grey", while the WWII was still, err, debated whether it was "Black vs. White" or "Black vs. Grey".
So, by using Black-Grey-White "system of morality", there are total six types of wars:
- White vs. White
- Grey vs. White
- Black vs. White
- Grey vs. Grey
- Black vs. Grey
- Black vs. Black
Now, in OTL nearly every wars are either "Grey vs. Black" or "Grey vs. Grey".
The challenge is, to create ATL wars of other "types" (like "White vs. Grey" or "White vs. White").
So, by using Black-Grey-White "system of morality", there are total six types of wars:
- White vs. White
- Grey vs. White
- Black vs. White
- Grey vs. Grey
- Black vs. Grey
- Black vs. Black
Now, in OTL nearly every wars are either "Grey vs. Black" or "Grey vs. Grey".
The challenge is, to create ATL wars of other "types" (like "White vs. Grey" or "White vs. White").