Mongol Siege Trebuchets

Timeline

1. c. 1215–1230North China · Northern ChinaIn wars against Jin and Western Xia, the Mongols captured and conscripted craftsmen from China and Central Asia, incorporating traction trebuchets and early counterweight engines into siege forces and forming dedicated engineer corps.
2. 1240Kiev · UkraineBatu's army besieged Kiev in 1240, bombarding walls and stone structures such as churches with trebuchets; after the city fell, the destructive power of the trebuchets left a deep impression in Eastern European sources.
3. 1241–1250Eastern Europe · Eastern EuropeBetween 1241 and 1250 the Mongol army continued using trebuchets in combination with firearms and scaling ladders to storm strongholds in Poland, Hungary, and elsewhere; siege engines became important equipment for capturing cities in the later western campaigns.