幽云

后晋以后，幽云十六州成为辽军南下攻掠中原的基地，致使北方地区的社会经济遭受严重破坏。

After the Later Jin , the sixteen cities of Youyun was a base for Liao to attack and grab from the Central Plain , which brought havoc in north China .

北宋建国后制定的统一战略，虽然结束了五代以来的割据局面，但幽云地区仍陷于辽朝之手。

Northern Song founds a nation the unity strategy that draws up behind . Although ending is five of set up separatist regime situation , You cloud region is still sunk to the hand of Liao dynasty .

几次北伐战争的失败，宋主企图收复幽云的愿望破灭，这反映出当时辽宋两国的力量对比呈现均势的状态。

The failure of a few Northern Expedition fighting , Sung lord attempts to recover the wishes of You cloud to fall through . This reflects at that time Liao Sung two countries of the strength contrast presented the status of balance of power .