The strength of the Mongol army was in the presence.

The Mongolian army of the 13th century was perhaps the most powerful in the world, as it successfully combined the achievements of Chinese engineering (siege weapons) with cavalry, traditional for the nomadic peoples of Asia. Thus, the Mongol army could defeat both a large army in a field battle (for example, Prince Yuri on the Sit River in March 1238), and take by storm a large city like Kiev, Samarkand, Vladimir.