Siege of Bukhara

The siege of Bukhara took place in February 1220, during the Mongol invasion of the Khwarazmian Empire. Genghis Khan, ruler of the Mongol Empire, had launched a multi-pronged assault on the Khwarazmian Empire ruled by Shah Muhammad II. While the Shah planned to defend his major cities individually, the Mongols laid siege to the border town of Otrar, and struck further into Khwarazmia.