>>17835612
they had no stone castles during the 1st invasion, which is why the mongols were successful then.
after the 1st invasion, hungary built a lot of western style stone fortifications to prevent the same thing happening, and ordered crossbows, which mongols did not like and did not use. crossbows shot from towers would outreach the arrows and velocity of archers on the ground.
mongols shat their pants and would burn random empty towns and villages in their sissy temper tantrum and didn't return the same way ever again.