Destruction under the Mongol Empire

The Mongol conquests resulted in widespread and well-documented death and destruction throughout Eurasia, as the Mongol army invaded hundreds of cities and killed millions of people. As such, the Mongol Empire, which remains the largest contiguous polity ever to have existed, is regarded as having perpetrated some of the deadliest acts of mass killing in human history.

More recently, the Mongol Empire's conquests have been classified as genocidal. For example, British historian John Joseph Saunders described Mongol troops as "the most notorious practitioners of genocide".