<p>The battle of the Kalka River (Russian ????? ?? ???? ?????) took place on May 31, 1223, in the ravines of the Kalka River (present-day Kalchik, which flows into the Azov Sea), in an area near the city of Kremenivka, in present-day Ukraine. ending with a Mongol victory. Because of the similar strategic situation of isolation from the Crusaders forces in the rugged geography of the Levant, and because of the local tactical situation requiring ca...