Berke-Hulagu war splits the Mongol world

1266

The Golden Horde and the Ilkhanate fought a pitched battle at the Terek River in the Caucasus, the first open war between Mongol khanates. Berke, a Muslim convert outraged by Hulagu's destruction of Baghdad, allied with the Mamluks against his own cousin. The unified empire Genghis had built was fracturing irreparably.