Mongol Siege Engine System

Timeline

1. c. 1231–1234North China · North ChinaÖgedei Khan launched a general offensive against the Jin; the Mongol army deployed trebuchets, scaling ladders, and siege towers on a large scale, and conscripted Han craftsmen from the Central Plains to operate heavy engines, playing a decisive role in capturing strongholds such as Junzhou and Caizhou, ultimately destroying the Jin.
2. c. 1236–1240Eastern Europe and Central Asia · Central AsiaWhen Batu led the western campaign against the Cuman and Rus' cities, the Mongol army carried Central Plains siege engines and Persian engineers, conducting systematic sieges of cities such as Vladimir and Kiev, completing a transcontinental deployment of the siege technique system from East Asia to Eastern Europe.