This is the two countries, namely the North Eastern Wei Western Wei Dynasty war, many Southern Xiaoliang observing period.

During the period of the North dynasty, the tactics for the infantrymen defeating the cavalrymen became more mature, which was regarded as good for the military reforms by the North Wei and.

So, in my view, the Western Wei and Northern Zhou Dynasty is finally the enemy is stronger than the southeast two reasons, you can also further discussion.

On the history, the Regimes such as the North Wei, West Wei and North Zhou managed Hedong Salt Pond with many changes.

They are so absolutely exact that it is something of a mystery to us, " says curatorial associate and science historian Susan M. Rossi-Wilcox."