Originally Posted by Watchman
Uhh... and right after he was done with the Sung he went and enacted a total massacre on Khwarimzam, on the grounds that the Khwarimzamshah was being an obstinate ass. Some analysts claim that region of Central Asia never wholly recovered from the Mongol invasion...
And Khubilai ? He's the one who tried to invade Japan. Twice. On both times any Japanese commoners that got in the way didn't exactly have a good time. The logistical build-up for the second invasion attempt placed such a strain on the Koreans that they revolted - and got suppressed with predictable brutality.
Sorry, but the Mongols - or for that matter any other steppe conquerors - were just too gleefully destructive to make it even near the list.