Who stopped the Mongols?

The Mongols were notably stopped by the Mamluks at the Battle of Ain Jalut in 1260, where they faced a decisive defeat in the Levant. Additionally, the rise of the Russian principalities, particularly under leaders like Alexander Nevsky, helped to halt Mongol advances in Eastern Europe. The combination of military strategy, local resistance, and shifting political dynamics ultimately contributed to the decline of Mongol expansion.