
The unstoppable Mongol juggernaut unleashed by Genghis Khan finally met its match in 1260 at the Battle of Ayn Jalut, in Palestine.
Genghis's grandson Hulagu Khan hoped to defeat the last remaining Muslim power, Egypt's Mamluk Dynasty. The Mongols had already smashed the Persian Assassins, captured Baghdad, destroyed the Abbasid Caliphate, and ended the Ayyubid Dynasty in Syria.
At Ayn Jalut, however, the Mongols' luck changed. The Great Khan Mongke died in China, forcing Hulagu to draw back to Azerbaijan with most of his army to contest the succession. What should have been a Mongol walk-over in Palestine turned into an even contest, 20,000 per side.