英文摘要 |
This thesis, which the Northern Line’s changes is as a individual clue during the Tianfu years of the later Jin Dynasty, attempts to elaborate that the Central Dynasty was forced to admit that the Khitan’s actual control about You-Yun province. At the same time, ShiJingtang reestablish the Northern Line through the integration of administrative divisions and border troops in order to prevent the Khitan’s invasion. |