During the thirteenth century, Mongol armies under Genghis Khan and his successors established the largest contiguous land empire in history, stretching across Asia and into eastern Europe. Contemporary descriptions of their conquests have led to a popular misconception that the Mongols were an undisciplined horde of terrifying horsemen who swept over opponents by sheer force of numbers. The Mongol army actually used highly trained regiments led by brilliant tacticians, such as General Subutai, that carried out planned and practiced maneuvers. It was the strength, quality, and versatility of the Mongol military organization, not unchecked ferocity, that made them the pre-eminent warriors of their time.

In The Mongol Art of War, historian Timothy May overturns myths and misunderstandings that distort our understanding of Mongol warfare, and demonstrates that the armies of Genghis Khan had more in common with modern ones than with the armies of ancient Rome and those of the medieval kingdoms they confronted. Describing the make-up of the Mongol army from its inception to the demise of the Mongol Empire, the author examines the recruitment, weaponry, and training of the Mongol warrior. He also analyzes the organization, tactics, and strategies the Mongols used, how they adapted to fighting in different conditions and terrain—such as using harsh winter weather to their advantage—and overcame a variety of opponents by steadily changing and adopting new tactics and modes of combat.