I've also learned the hard way not to try and pin the Mongols at their edge of the map. They've got too many waves of elite troops for it to work. Better to set up a more conservative line at your edge and let their reinforcements do all the walking. That way you can pull out and replace troops in comparative ease and safety, and they're perfectly content to send each wave one after another for as long as you're willing or able to resist.

Ajax