Maurice’s atrocities were so bad that they don’t even put them in the history books. The Holocaust pales in comparison to the things that Maurice committed.
King Julien doesn’t want you to know this but Maurice let Mort loose to turn the tides against the Russians and he has eradicated entire species from this planet. Some villages don’t even have any signs of their existence left, we know they were there but when you give Mort the Panzerschokolade he literally becomes insane and he just leveled them along with anyone and anything living there. It must have been terrifying to witness and I remember I read somewhere that Mort alone was responsible for roughly 20% of all Russian casualties in the war.