The Mongols were very barbaric, their reputation was not pretty, they slaughtered entire cities and left one person alive so they could tell the terrible story.
North China Genghis Khan’s first serious target was North China, their army of 200,000 rode east. Numerous cities felt Mongol brutality. Slaughter was so great, streets were greasy of human fat and flesh.
Russia and Eastern Europe
In 1227 Genghis Khan died, so one of his four sons took over. After a long argument, Ogedei ordered an attack on Russia and Eastern Europe. Ogedei predicted a long 18 years it would take, an army of 50,000 soldiers on horses, Persian and Chinese engineers, and 20,000 draftees were ready to go to war. The first city to fall