Mongol Massacres
The Act
Mongol armies under Genghis Khan and his successors systematically massacred populations of cities that resisted. Contemporary accounts describe pyramids of severed heads, the slaughter of entire urban populations (estimates for single cities sometimes exceeding 100,000), and the deliberate destruction of irrigation systems and urban infrastructure. Cities such as Nishapur, Merv, and Baghdad suffered catastrophic losses.
The Response
The scale of killing produced both submission among survivors and lasting demographic and cultural damage across the conquered territories. No formal judicial response occurred; the conquests themselves were the political outcome. Later historiography has debated the accuracy of the highest casualty figures while affirming the systematic use of mass terror.