Jin, Southern Song Dynasty, Mongolian period, Jin Liuzi.

The Three Kingdoms gained a firm foothold, but gold couldn't beat Mongolia, and Song couldn't beat gold, so later Song and Mongolia jointly destroyed gold, and Mongolia subsequently destroyed Song.

In ancient times, the southern region was at a disadvantage to the north because of war horses, race and other reasons.

The song dynasty was not bad. The powerful state of Jin and the western countries were enslaved under the iron hoof of Mongolia.

Mongolia is a special nation with the highest fighting capacity-this is also the reason for its rapid demise.