mongols were great because of adaptability, meritocracy and ability to act on your own accord as commander and as a soldier.  gengis khan didnt hire a buerocrat to micromanage every single step of invasion.  none of this is present in russian rigid buerocracy. russian will send 10000 men straight to a minefield and say orders from above and they will do it. mongol commander wouldn't try this and if he did his largely self sufficient army would desert. russian is way braver than a mongol but he is also way more subservient to authority even though he knows authority is corrupt wrong etc unlike german.
Croatia