1. Please don't use Nazi Germany / The Holocaust as an example for anything else ever, this one time it was okay because we were actually talking about genocide. 2. The Holocaust was a different kind of genocide to the genocides committed by the Mongols - Hitler was targeting specific ethnic minority groups that were widespread across his country/empire. The Mongols went into a city that they didn't like and literally murdered every man, woman and child - but contrary to popular belief this was actually rare - the main interest of Mongols was extracting tribute from conquered peoples and you can't rextract tribute from the dead. The massacres were only done on occassion to provide an extra incentive for the rest of the cities in the region to sbmit to the Mongols without fighting. That isn't to say that Genghis Khan wasn't a horrible bloodthirsty killer like the rest of his civilization, and he definately did some barbaric and abhorrent things - just wanted to make tat distinction.