In the early 13th century, a simple nomad chieftain managed to cobble together a powerful kingdom in the highlands of northern Asia, which was subsequently to challenge the greatest powers of the day. He was triumphant in all directions. This leader was Timujin, whose name meant "Iron Man". He became Genghis Khan, "Universal Ruler", the greatest conqueror ever known - a warrior feared from the British Isles to the tip of the Korean peninsula.
Known by many names, including "The Scourge of God", Genghis Khan sent his Mongol armies ranging over most of the Eurasian land mass. He first sent his hordes of cavalry crashing into China, then turned on the ancient Persian Shah before smashing the Muslim Caliphate. He left smoldering ruins and depopulated nations in his tracks. Instead of measuring his progress in miles, we measure it today by degrees of latitude and longitude.
The tough, barbaric Mongolians were welded into the finest, most highly disciplined force of mobile fighting men assembled up to that period. Mongol leadership, unlike those of other armies, was based strictly on merit. Incompetence was not tolerated among the Khan's generals. The lightning quick movements and encircling tactics of Mongol horsemen baffled their opponents time after time. In fact, under Genghis Khan, they were never defeated. At the Great Khan's death in 1227, there were hardly any worthy opponents left to fight anywhere in the world.