That is true, and I'm definitely not the person to go to for historical information, but I feel like (and please correct me if I'm wrong) but the two world wars were fairly different kinds of conflicts. WWI had a bunch of countries being drawn in due to treaties, while WWII was more ideologically driven, so if something other than the Treaty of Versailles brings about the rise of fascism in the Empire (like an OP loli that likes rules a little too much), their first world war would be more similar to our second.
But again, history was always one of my worst subjects, so take what I say about it with a bathtub of