联金灭辽

联金灭辽联金灭辽
  1. 北方女真族所建的金国崛起,宋室为了收复燕云诸州,便联金灭辽,但其弱点也为金国所洞悉。

    To recover the sixteen states of Youyun , the Northern Song sent an emissary to the state of Jin to negotiate an agreement for a joint attack on the Liao . However , the resort also exposed its weakness to Jin .