The specific location of sixteen states in Youyun. Sixteen states of Youyun, also known as Sixteen States of Youyun or Sixteen States of Youyun, mainly refer to today's Beijing, northern Tianjin, northern Shanxi and northern Hebei.
The sixteen states of Youyun include Youzhou (today's downtown Beijing), Shunzhou (today's Shunyi, Beijing), Ruzhou (now Yanqing, Beijing), Tanzhou (now Miyun, Beijing), Jizhou (now Jizhou, Tianjin), Zhuozhou (now Zhuozhou, Hebei), Yingzhou (now Hejian, Hebei), Yizhou (now Renqiu, Hebei) and Xinzhou (now).
The strategic position of sixteen states in Youyun. Since the Warring States Period, Yan and Zhao in the north have built the Great Wall on the northern border in order to resist the nomadic people in the north. After Qin Shihuang unified the six countries, he connected and strengthened the Yanzhao Great Wall and became the famous Great Wall of Wan Li. Later dynasties also repaired and supplemented the Great Wall to varying degrees, making it a solid fortification against nomadic people in the north.
The place where the sixteen states of Youyun are located happens to be the Great Wall. The Great Wall in this area, the northern part of Taihang Mountain and Yanshan Mountain, which are in dangerous terrain, rely on each other to form a solid defense barrier.
For the Central Plains Dynasty, controlling the sixteen states of Youyun can well defend against the invasion of the nomadic regime in the north. For the nomadic people in the north, they can spy on the Central Plains when they control the sixteen states of Youyun. When the soldiers are strong and Ma Zhuang is equipped with a male leader, they can ride their horses and whip and point their swords at the Central Plains.
It can be said that the Sixteen States of Youyun is the first line of defense against the nomadic people in the north of the Central Plains Dynasty, and it is also one of the most useful and solid lines of defense. At the same time, the sixteen states of Youyun are also an insurmountable barrier for nomadic people in the north.
Historically, the Han Dynasty relied on this line of defense to resist the invasion of the powerful Xiongnu in the north, and the later Ming Dynasty also relied on this line of defense to resist the Mongols in the north and the Jurchen in the northeast.
It can be seen that the sixteen states of Youyun are strategic places and battlegrounds for military strategists.
Sixteen states of Youyun is a sword hanging over the head of the Northern Song Dynasty. The reason why the Song Dynasty always wanted to recover the sixteen states of Youyun was not only the national plot of recovering the territory of the traditional Han dynasty, but also the strategic position of the sixteen states of Youyun was so important.
For the Song Dynasty, you can't feel at ease until you recover the sixteen states of Youyun, which is a sword hanging over the head of the Northern Song Dynasty and may fall down at any time.
Therefore, it has become the long-cherished wish of the Northern Song Dynasty to recover the sixteen states of Youyun, and every generation of monarch and minister in the Northern Song Dynasty has this plan.
For example, Song Taizu Zhao Kuangyin wants to use money to redeem it, and has set up a "packaging library" for this purpose; In order to recover the sixteen states of Youyun, Zhao Guangyi, Song Taizong, launched two wars of cutting Liao in the north. In order to recover the sixteen states of Youyun, Song Huizong tore up the peace treaty with Liao and attacked Liao with Jin, which led to the shame of Jingkang.
Sixteen states of deep and remote clouds became the pain that could not be erased in the Northern Song Dynasty, until it was "painful to death".
What do you think of this?
Welcome everyone to comment and exchange actively. Friends who like history will pay close attention to the rain in Jincheng, and have more interesting and useful historical knowledge, so stay tuned!
References:
History of Song Dynasty.