Mongol conquest of the Song dynasty Mongol conquest of the Song dynasty The Mongol conquest of the Song dynasty under Kublai Khan (r. 1260–1294) was the final step for the Mongols to rule the whole of China under the Yuan dynasty. It is also considered the Mongol Empire's last great military achievement. Before the Mongol–Jin War escalated, an envoy from the Song dynasty arrived at the court of the Mongols, perhaps to negotiate a united offensive against the Jin dynasty, who the Song had previously fought during the Jin–Song Wars. Although Genghis Khan refused, on his death in 1227 he bequeathed a plan to attack the
Mongol invasions of Tibet to station in Tibet in 1254-55 possibly to suppress war-like tribes in Tibet. Hulegu appointed his representative, Kokochu, in Tibet in mid-1250s while marching towards Iran. Since then, the Ilkhans had had possessions in Tibet. In 1265 Qongridar ravaged the Tufan/mDo-smad area, and from 1264 to 1275 several campaigns pacified the Tibetan and Yi peoples of Xifan around modern Xichang. By 1278 Mongol myriarchies: tumens and postroads reached through mDo-khams as far west as Litang. Tibet was subdued to the Mongol Empire under Mongolian administrative rule, but the region was granted with a degree of political autonomy. Kublai Khan would