Jin would quickly destroy Hu Xia, Northern Wei and the remaining non-Han states, reunifying China proper. However, Liu Yu went back to Nanjing on rumors of the death of Emperor An of Jin, leaving his general Wang Zhen'e in charge. Hu Xia forces took the opportunity to attack, and captured the Chang'an region from the Eastern Jin. Nevertheless, the Eastern Jin still held most of the territories south of the Yellow River. Aftermath These victories laid the foundation for the Reign of Yuanjia, a period of relative prosperity brought about by diminished threats of invasion or constant warfare. References Sources Book of Song. 5th century in China Jin dynasty (266–420) 400s 410s 409 416