Talk:Mangudai/@comment-93.57.253.75-20170814082435/@comment-27810937-20170816051832

"What's more puzzling is the Chinese, which should have a weakness towards the Mongols, are actually hard to beat thanks to their Chu No Ku spam, coupled with decent defense and siege capability. "

History-wise, one of the main reason why Mongols were able to conquer China was because China at that time was not united yet, with Jin (north) & Song (south) were still at war against each other. So the Mongols at first allying themselves with Song. After Jin was conquered, Mongols recruited the remnant of Jin soldiers & then conquered Song with these army. So in a nutshell, Mongols conquered China with the assistance of China's own inhabitants.

Back to your original question. I rarely played as Mongols to be honest. But theoretically, the best way to defend against an army with archers as their backbone is by using Onagers supported with Hussars. Mongols sieges move faster than other civs sieges, so you should take advantage of it.