Why did the Northern Song Dynasty practice guarding the inside and the outside?

A, first of all, "guarding the inside and the outside" was the need of the Northern Song Dynasty to eliminate secession and resist external troubles at that time.

Again, "guarding the inside and the outside" was the need of the Northern Song Dynasty to strengthen the centralization of power and consolidate the rule at that time. Song Taizu witnessed the alternation of the five dynasties of the country, and he himself gained power by mutiny. Therefore, Song Taizu focused most of his energy on encircling and guarding against internal problems, and did not have enough determination to eliminate external troubles.

His first consideration was how to maintain stability and expand the base of his rule in order to strengthen the centralization of power, especially military power. At that time, the army of the Northern Song Dynasty included the forbidden army, the box soldiers, the township soldiers, and the feudal soldiers, and the forbidden army was not only large in number (accounting for more than half of the number of soldiers), but also carefully selected from all over the country, and was the main armed force at that time. If there are still elite soldiers all over the world, the situation of chaos on the spot is still possible.

Therefore, in order to strengthen the centralization of power and prevent rebellion, Song Taizu must firmly control and master the forbidden army. Shi Shuyun: "Taizu learned the mistakes of the previous generations, and gathered the elite in Beijing."

It can be seen that Song Taizu stationed the forbidden army in Beijing, which is the need to summarize the losses of the previous generation and strengthen the centralization of power.

The administrative division and local political system of the Song Dynasty can be described as emphasizing the inside over the outside, and it is highly centralized. Although it avoided the situation of separating feudal towns, it led to the poverty of local defense, and also caused the end of the Song Dynasty to continue to suffer from external troubles.

If you look at it in combination with the historical situation at that time.

It should be understood in this way: In order to prevent the division of feudal towns, it is necessary to strengthen the centralization of power, and the result of this will be to defend the inside and the outside.

There is no centralization of power without the division of feudal towns, so B should be chosen

b The most important thing for Song Taizu was to prevent the secession of feudal towns, and foreign wars required a lot of funds, so domestic stability was extremely important.

It should be b, the fall of the Tang Dynasty was due to the division of the feudal town.

Didn't the grandfather use wine to release the military power?

In order to guard against the invasion of the Liao State.

What did the Southern Song Dynasty guard: keep the inside and the outside.

Definition: Defending the inside and the outside means to defend against the hidden dangers that may arise inside (internal enemies, generals defect) and relax the external threats (external enemies, external enemy aggression), resulting in an empty border.

Guarding the inside and the outside is Zhao Kuangyin's military policy aimed at maintaining the long-term rule of the royal family in order to prevent future generations of warlords from following his example and adding yellow robes. Guarding the inside and the outside is a solution that Song Taizu came up with after learning the lessons of history, combining the situation at that time, and meditating. This policy lasted for 320 years of the Song dynasty and influenced successive rulers.