I wrote a paper for a history prof once "arguing" (like profs make you do in papers. Nothing can just be food for thought) that Hitler's campaign in WW2 was a continuation of the Roman Empire, and with the exception of the Holocaust, his taking if land was possibly justifiable. Basically, the Germans conquered Rome, then the HRE with it's German blood said they were the new Romans for some reason. Then they fell to Napoleon, which led to the Austria-Hungarian empire of WW1, which became Germany for WW2. And the entire time, they never stopped thinking "everything from Gaul, Germany, Italy, and the balkins are fucking ours and it was stolen from us." I titled it something like "The Two Thousand Year Old Casus Belli."