Mongol invasion of Kievan Rus'
|Mongol conquest of Eastern Europe|
The conquests of Genghis Khan
|Commanders and leaders|
|Casualties and losses|
|Unknown||500,000 (6–7% of the population of Rus)|
The campaign was heralded by the
The invasion, facilitated by the beginning of the breakup of Kievan Rus' in the 13th century, had incalculable ramifications for the history of
As it was undergoing fragmentation, Kievan Rus' faced the unexpected eruption of an irresistible foreign foe coming from the mysterious regions of the
The princes of Rus' first heard of the coming
Although this defeat left the Rus' principalities at the mercy of invaders, the Mongol forces retreated and did not reappear for thirteen years, during which time the princes of Rus' went on quarrelling and fighting as before, until they were startled by a new and much more formidable invading force. In the
"Then he (Chinghis Khan) sent Dorbei the Fierce off against the city of Merv, and on to conquer the people between Iraq and the Indus. He sent Subetei the Brave off to war in the North where he defeated eleven kingdoms and tribes, crossing the Volga and Ural Rivers, finally going to war with Kiev."