In 922, by which time Yelü Abaoji was the emperor of the Khitan Empire (as its Emperor Taizu), Yelü Deguang was given the title of Generalissimo of All Forces (天下兵馬大元帥, "Tianxia Bingma Da Yuanshuai"), and he was put in charge of commanding incursions into the territory of Khitan's southern neighbor Jin. In 923, under him, the Khitan forces captured Jin's Ping Prefecture (平州, in modern Qinhuangdao, Hebei), and also defeated the Huxun Tribe (胡遜) of the Xi. It was said that he later followed Emperor Taizu in defeating the Khitan Jueli Tribes (厥里), forcing the submission of the Dangxiang tribes in the Ordos Loop region, conquering the garrisons of the Hexi Corridor region, capturing the capital of the Gansu Uyghur Kingdom, defeating Balhae, and destroying the Dalugu Tribes (達盧骨).