. . "Mongol victory" . "on the Sit' River" . "20pxVladimir-Suzdal" . "Kievan Rus'" . . . . "1237\u20131238 invasion of eastern and northern Rus'" . . "1238-03-04" . . . . . . . "At least one tumen (10,000) of nomadic cavalry" . . "Battle of the Sit River" . . . "battle of the Sit River" . . "the Sit River" . . . . "Light" . "More than 3,000, mostly infantry" . "Battle of the Sit River" . "Mongol Empire" . "at the Sit' River" .