It always surprised Riddlez on how the 'Godd vs. Bad' idea in wars nearly always is there:
WW1: Clearly, Germany and allies = bad, rest: Good
WW2, exact same thing.
Vietnam: well, kinda obvious
Modern afghan war, too obvious
Though, with the ACW and the NW, there seems quite the lack of it, Napoleon isn't really viewed as bad. Nor are the confederates in the ACW, no?