‘The Mongols exemplified the tough, brutal, Eastern races of lesser culture that had threatened Europe for centuries and would continue to threaten for centuries more unless nazi Germany solved the problem. During a meeting on 21 July 1941 with Marshal Kvaternik, Croatian Defence Minister and commander‐in‐chief of the Croatian armed forces, Hitler compared the Russian forces with those of Genghis Khan, and said that the powerful Mongolian race was pressing against Europe.’

(Source.)