淝水之戰
Huan Wen was succeeded by his brother Huan Chong, and his family would retain some power until the fall of their short-lived state Huan Chu in 404. Due to the failure of Jin to reclaim the Northern heartlands, Jin forces were soon faced with the gigantic threat of Qin. Jin's conquest of Yan proved beneficial for Qin, as in its weaken state, Qin quickly annexed them in 370. With Jin not capable of carrying out another expedition, the 370s was a period which saw rapid progress in Qin's conquest, a growth that was only stopped in 383 at the Battle of Fei River.