The Battle of Jingnan, also known as the Jingnan Revolution, was a battle for the throne within the ruling class of the Ming Dynasty from the first year of Wen Jian (1399) to the fourth year of Wenjian (1402).

First, the wool packet

In April of the third year of Hongwu (1370), Zhu Yuanzhang, the Ming emperor, tried his best to strengthen the strength of the royal family. The specific method is to enfeoffment all his sons as kings. He was captured by twenty-five royal families (twenty-four sons and one grandson) and stationed in the northern border and strategic locations throughout the country, trying to screen the royal family through them.

Zhu Yuanzhang once said: "The world is big, we must build a fan screen to protect our country and protect the people. Now that philosophers have grown up and have their own titles, it is more appropriate to divide towns and countries. " From the national point of view, there are mainly two kinds of vassals: one is in the abdomen and the other is in the frontier. The blocked king set up a palace and a butler in his fief, and his position was very high. When princes and ministers see princes, they all bow down.

In the early Ming Dynasty, every vassal had military command besides food and mangoku. The captaincy set up a command post for the Prince's Guard in Wang Fu to take charge of the guards of the three armed forces, with a minimum of 3,000 and a maximum of19,000. Nine princes (Liao, Ning, Yan, Gu, Dai, Jin, Qin, Qing and Su) were responsible for guarding the troops.

Zhu Quan, the 17th son of Emperor Daning, "took eighty thousand armour and six thousand wagons". They are responsible for building cities and opening up wasteland, training generals and soldiers, patrolling key points and supervising the construction of military equipment in frontier fortress. The King of Jin and the Prince of Yan went to the frontier fortress for many times to repel the remnants of the Mongols, which attracted special attention from Ming Taizu. The generals in the army were all controlled by them, even the little things in the army of the two kings were controlled by them.

The expansion of vassal power is bound to pose a threat to the central government. When Zhu Yuanzhang sealed the kings, Ye Boju, then the commander of Pingyao, pointed out that the vassal power was too heavy, and it would be too great to lose the princes for several generations. At that time, I am afraid it will lead to the tragedy of the "Seven Kingdoms Rebellion" in the Han Dynasty and the "Eight Kings Rebellion" in the Western Jin Dynasty, reminding Zhu Yuanzhang to "preserve his capital system, reduce its guards and limit it."

In the process of enfeoffment, Zhu Yuanzhang once stipulated that all the blocked kings must leave the capital and become vassals in the fief, and they are not allowed to communicate with each other. Even if you enter the DPRK, you can't come at the same time. One king must leave Beijing before another king leaves. Zhu Yuanzhang's purpose is to prevent the kings from connecting with each other in series against the central authorities. Therefore, the kings are princes, which can be said to be "where will you go?" But Zhu Yuanzhang's good intentions failed to receive expectations.

Second, the legacy of "Jingnan"

Zhu Yuanzhang, the founder of the Ming Dynasty, not only made all the scholars princes, but also included a clause about "Jingnan" in the law. When Zhu Yuanzhang was in power, he was afraid that the powerful minister would usurp power, and stipulated that the governors had the right to beg the traitors from the central authorities and send troops to Jun Qing. In Ming Di's Instructions, he said: "If there is no official in the DPRK, there must be traitors among them, so as to clear the monarch."

Later, Judy used this as a reason to refer to Ji Tai and Huang Zicheng as traitors, calling their behavior "Jingnan", which means Jingnan, so Judy's slogan in the battle of Jingnan was "Jun Qing side, Guo Jing south".

Among them, "Jingnan" means "Jingnan", which means to calm down and eliminate, and "Jingnan" means to calm down disasters, calm down wars and eliminate treacherous officials. However, there is still a rule in the formation of Taizu, that is, the emperor must summon the princes before the princes can rise up and leave Beijing within five days after successfully eradicating the treacherous court official, so this is just one of Judy's attempts to seize the throne.