The reason why Zhu Di raised troops to call for appeasement: When Zhu Yuanzhang was in power, he feared the usurpation of power by the courtiers, and stipulated that the clan king had the right to transfer the text to the central government to claim traitors and raise troops to the side of the Qing monarch. "Translation: There are no honest ministers in the dynasty, and among them are chaotic ministers and thieves, and they must send troops to fight and clean up the chaotic ministers and thieves around the emperor.
Figure 1
After Emperor Ming Emperor Zhu Yuanzhang came to the throne, he divided his sons into clan kings, of which the King of Qin, the King of Jin, the King of Yan, the King of Dai, the King of Gu, the King of Liao, the King of Ning, the King of Qing, and the King of Su were the nine kings of Saisai, leading troops to garrison Biansai, and these clan kings had "guards" as few as 1,000 people, as many as 19,000 people. Soon after Zhu Yunjiang took the throne, he began to reduce the domain. Qi Tai believed that Zhu Di, the most powerful of the kings, should be cut first, while Huang Zicheng believed that the kings of Zhou, Qi, Xiang, Dai, and Min had already committed illegal acts during the Hongwu period and were famous. King Zhou should be cut first, King Zhou and King Yan are the same mother, and cutting King Zhou is equivalent to cutting King Yan's hands and brothers, and Zhu Yunjiang adopted his suggestion. In the autumn and July of the first year of Jianwen (August 1399), Zhu Di, the king of Yan, swore an oath to disobey the order, issued an order to his soldiers, and raised troops under the banner of "the side of the Qing monarch" to "Jing Difficulty". History called the "Battle of Jingjian." A military standoff between the Jianwen court and King Yan began that lasted three years. At the beginning of the Jing Dynasty, King Yan did not yet have the advantage in troops. His army consisted of only one hundred thousand men; Nor was he able to control any territory other than his fiefdom of Beijing. The Jianwen court in Nanjing had a standing army three times the size of King Yan's army, had a national economy, and had abolished several vassal states, and King Yi Fangyuan of Joseon publicly supported Zhu Yunjiang's fight against King Yan. However, King Yan's leadership ability and high-quality army were not comparable to Zhu Yunjiang. As the war prolonged, the shortcomings of improper command of the imperial court, weak troops, and internal laxity seriously affected the war situation. Until the defeat, many generals surrendered to the King of Yan. Zhu Di used this as a reason to accuse Qi Tai and Huang Zicheng of being traitors and had to be reprimanded, and called his actions "Jing difficulty", that is, the meaning of appeasement. Therefore, Zhu Di's slogan in the Battle of Jingjian was "On the side of the Qing monarch, Yasukuni is difficult."
Figure II
As for Zhu Di, this battle did not mean that I wanted to plunder the throne, thinking that I was like my nephew initiating provocations, but that I was teaching like my nephew, and I taught my nephew not to trust loyal subjects.
Figure III
Zhu Dijing had difficulty rebelling and succeeded. This is very difficult, because before the Ming Dynasty, he was the only one who rebelled and succeeded as a clan king. The Battle of Jing was the first civil strife after the founding of the Ming Dynasty, and it was also the battle for the throne that broke out shortly after the death of Emperor Zhu Yuanzhang of the Ming Dynasty. Zhu Di was arranged by Zhu Yuanzhang at the age of 13 to take up the domain, which was the bitter cold land of Beiping, and the previous Beiping, the capital of the Yuan Dynasty, was located in the north, and has always been contested by soldiers.