Dark Red: drive on the wrong side
Light Red: infidels, who left the true path
Purple: infidels, who once were confused, but now are lost
Dark Blue: the chosen people
Light blue: adopted into the chosen people
Now maybe I'm just a soppy old post-colonialist, but I do feel a special affection for 'our team' (especially since Samoa took the brave decision a few months back to join the Blue Army). It's only Napoleon's fault that anyone outside France drives on the wrong side at all – silly man.
And on the subject of Napoleon, he also famously came acropper trying to hold that European-Asian border, and, as any Risk player knows, that's just asking for trouble: it's Australasia that wins you world dominance – put all your armies on Papua New Guinea …