Border Crises in Emperor An Time of Eastern Han Dynasty

The borderland questions are important for political situation,in Emperor An Time of the Eastern Han Dynasty border crises,together with the problem of displaced persons,erupted comprehensively.The Eastern Han Dynasty government spent the enormous energy on these issues but has not obtained a good solution.Borderland questions of Emperor An Time have their own characteristic,which exposed some fundamental flaws of Eastern Han Dynasty.It affected the later political situation development.