The problem of the kingdom of the Han Dynasty (it should be called the vassal state in history) has a long history. Even Emperor Jing of Han Dynasty said that these vassals got on the horse to rule the army and got off the horse to rule the people. What they lacked was to govern the country. It can be seen that the threat of the Han state to the central court has reached a very serious level. So, when Han Jing heard the proposal of "cutting the vassals" put forward by Prime Minister Chao Cuo (the elder of the two dynasties and the teacher of Emperor Han Jing), he immediately ordered Chao Cuo to take full charge.
According to Chao Cuo's proposal, the way to cut the vassal state is to seize the vassal state (in fact, it is a trivial matter) and gradually deprive them of their land and nationalize them. However, due to Chao Cuo's lack of a comprehensive plan on the issue of vassal reduction, the second is to despise the ambition of the vassal king, and the third is to take tough measures in the implementation process. Finally, in the third year of Emperor Jing of Han Dynasty (BC 154), Wu, headed by Liu Bi, joined forces with seven other powerful vassal states and launched the slogan "Punish Chao Cuo, clear the monarch's side", pulling up hundreds of thousands of troops and fighting with the central court, which is known in history as "the rebellion of the seven countries with Chu".
In the face of the rebellion between the Seven Countries and Wu Chu, Han Jing was at a loss, listened to Yuan Ang's suggestion and put all the responsibilities on Chao Cuo. Finally, a group of ministers, led by Ting Wei and Fu, wrote a letter and presented the proposal to kill Chao Cuo. Emperor approved the word "gram", so he killed the famous minister Chao Cuo and dreamed of withdrawing troops from the Seven Kingdoms. Who knows that Liu Bi and other captaincy rebelled for a long time, but instead of retreating, they continued to attack and colluded with Xiongnu Khan to attack the central court from north to south.
At this time, Emperor Han Jing realized that the Seven Kingdoms Rebellion was directed at his ass. General Zhou Yafu was sent to command the North and South armies against the Seven Kingdoms. Because Liu Wu, the monarch of the State of Liang at that time, was the younger brother of Emperor Han Jing, he stopped the onslaught of the Seven Kingdoms alone and kept asking Zhou Yafu for help, but Zhou Yafu insisted on not sending a single soldier and sending cavalry to sneak up on the route for providing foodstuff in the Seven Kingdoms. In the end, the seven-nation allied forces had no food and grass, and their morale was low. They were defeated by Zhou Yafu in the decisive battle. In this battle, Liu Bi, the king of Wu, fled to South Vietnam after his defeat, was beheaded by the monarch of South Vietnam and sent to the court. The king of Chu committed suicide after defeat, and everyone else was killed.
The Seven-State Rebellion solved the problems of most vassal states, and the central government recovered a lot of land. However, due to the performance of Liu Wu, the King of Liang, in the war, he even went to Beijing to meet the emperor, who greeted him with the ceremonial ceremony of the emperor, which made his strength expand rapidly and led him to die step by step.
The problem of the last vassal state is Liu Wu, Liang Wang, the younger brother of Emperor Han Jing, the son of Dou Taihou, and the great hero of the Seven Kingdoms Rebellion. At that time, because Han Jing was seriously ill and there was no prince, Dou Taihou wanted his favorite Liang Wang Liu Wu to inherit the throne, and Liang Wang Liu Wu also wanted to be emperor. However, due to the strong opposition of Minister Yuan Ang (this guy again), Liu Wu, King of Liang, was angered. Liu Wu, the king of Liang, listened to the slanderers of ministers and sent killers to assassinate ministers who opposed him as a king of Chu. After this incident reached the ears of Emperor Han Jing, Emperor Han Jing sent Zhi Dou, a cruel official, to investigate. One day, Zhi Dou found the head of Liu Wu, the king of Liang, and Emperor Jing of Han issued a letter demanding that Liu Wu, the king of Liang, hand over the murderer. Finally, Liu Wu, the King of Liang, was forced to hand over two ministers and went to Chang 'an to offer a humble apology.
Han Jing later pardoned Liu Wu, the king of Liang, and Liu Wu, the king of Liang, returned to his fief and died of depression in less than three years. So Han Jing ordered Liang to be divided into three parts, which were given to the three sons of Liu Wu, the king of Liang.
At this time, the problem of vassal States in the Han Dynasty was fundamentally solved.