For thousands of years, until the appearance of regular armies with the massive use of firearms, nomads were undivided masters of the Great Steppe. The Huns, who kept the khan of China in awe, used to say: «We are the proud pride, we were born to ride on horseback and rule over nations». «We will make our heads bow and knees bent», the Turks echoed, creating the great power of the Eternal El from Khingan to the Black Sea. In the 13th century, a handful of Mongols conquered a fifth of the inhabited land of the planet. What is the secret of success, the overwhelming success of nomadic armies?