Since the Quwo Dai Yi incident, the clan power of the Jin State has been curbed, after the succession of the Duke of Jin Wen to dominate the Central Plains, reform the domestic political and military, the Jin army at that time was divided into middle, upper and lower armies, Gongyuan 633 BC Jin Wen Duke set up a six-secretary system in the three armies, the six secretaries not only hold military power, national politics is also within the scope of power, this system allows the Jin State to avoid the problem of national development difficulties caused by the incompetence of the monarch, to the time of the Duke of Jin, the country is at its peak, the army rules ten thousand, dominates the Central Plains, and reaches the peak of the hegemony of the Jin State. But Chengye Six Qing, defeat also Six Qing, because of the countries at that time, the high-ranking officials were all Shiqing Shilu system, a hundred years of development, the strength of the Qing family continued to grow, and the strength held by the opposite monarch became weaker and weaker, after the Duke of Jinping, the struggle between Jin Guofan, Zhongxing, Zhi, Han, Zhao, and Wei Liuqing was fierce.
When the Duke of Jin Ding, the Fan clan and the Zhongxing clan were annexed by the other four major families, and the remaining four surnames Zhongzhi clan was the strongest in development, and it was also the main force to destroy the other two forces, and its sect master Zhi Boyao's ambition was also becoming more and more inflated, so he started the idea of the other three families, Persimmon first picked a soft pinch, so Zhibo first asked Han Kangzi, the sect master of the Han clan, for land, at this time, Han Kangzi did not want to give, and later Han's retainer Duan Guo advised Han Kangzi: "If we don't give it, we will definitely send troops to fight us." Our strength can't beat the Zhi clan, if we give it to him, he will definitely go to other families to ask for land" So he gave Zhibo a large county with a population of 10,000. Because the Zhao, Wei, and Han families lacked the conditions to form an alliance at that time, this decision allowed the Han family to avoid direct confrontation with the Zhi family and preserve the strength of their own family.
It was easy to get a piece of land, and Zhi Boyao was very happy, so he asked Wei Hengzi, the suzerain of Wei, for land, and Wei Hengzi did not want to give it at first, but Wei's retainer Zhao Wei persuaded Wei Hengzi in the same way, and Wei eventually gave it.
When he arrived at Zhao's side, Zhao Xiangzi, the sect master of the Zhao clan, was a very talented and brave person, and strictly rejected Zhibo, and after rejecting Zhibo, Zhao Xiangzi expected that Zhiboyao would definitely send troops to attack him, so he began to prepare for war, selected Jinyang (Taiyuan, Shanxi) as a base against Zhiboyao, and led his army to retreat to Jinyang City, and the place chosen by Zhao Xiangzi fully reflected his wisdom.
Xiangzi will come out, saying: "How can I go?" The follower said: "The eldest son is near, and the city is thick." Xiangzi said: "The people strike to the end, and they are killed to defend it, who is with me!" The follower said: "Handan's warehouse is real." Xiangzi said: "The anointing of the people is true, and therefore kills it, who is with me!" Its Jinyang Hu, the ancestor's belonging, Yin Li's place is also wide, and the people will be reconciled. "It's Jinyang. ——《Information Governance Tongjian》
History is full of uncertainty, a choice may change the trend of history, "the time is not as good as the place, the location is not as good as the people", Zhao Xiangzi chose Jinyang with "people", and only then did he have the persistence of the next three years.
In 455 BC, Zhi Boyao combined with the armies of Han and Wei to attack Zhao and besiege Jinyang, and Zhao Xiangzi adopted the strategy of holding the city and not taking the initiative to fight, whenever the three families of soldiers came to attack, they used bows and arrows to ward off the enemy, and held the city for more than two years.
However, one day, when Zhi Boyao was observing the terrain outside the city, he saw Jinshui (Fenhe, Shanxi) northeast of Jinyang City, and had a plan to introduce Jinshui into Jinyang City, so he sent troops to build a dam and dug a river next to Jinshui to introduce Jinshui into Jinyang City, but this also aroused the anger of the people in the city, and the people in the city did not surrender. After this incident, the majestic Zhibo said: "Oh, I just learned today that the water is enough to kill the country!" When Han Kangzi and Wei Hengzi heard this, they were secretly surprised, because An Yi (Wei Du) and Pingyang (Han Du) also had a river next to each other, and from then on, they had the conditions to win the support of Han and Wei, breaking the alliance between Zhi, Han and Wei.
After Jinyang City was flooded, the situation in the city became more and more difficult, Zhao Xiangzi sent Zhang Mengtan to lobby Han and Wei to join forces to rebel against Zhibo, Han and Wei also knew very well at this time, if Zhao was destroyed, Zhi Boyao's ambition would not let them go, so he won the support of Han and Wei.
But Zhao Mengtan was met by Zhiguo when he left the camp, Zhiguo is a military master of the Zhi family, he is wise and very politically far-sighted, and later Zhiguo meets Han Kangzi and Wei Hengzi outside Zhibo's military camp, and sees that their faces are abnormal, so he says to Zhiboyao: "Han and Wei will change." He told Zhi Boyao what he saw, but Zhi Boyao did not believe it, thinking that the war was about to gain benefits, and combined with the style of Han and Wei, he would not do such a thing. and questioned Han Kangzi and Wei Hengzi, which disappointed Zhiguo, so he suggested to Zhi Boyao to buy Duan Gui and Zhao Yu, the retainers of Han and Wei, but was also refused, so Zhiguo went to the Jin state Taishina, changed the Zhi clan to the Fu clan, and set up another temple to avoid Zhi Boyao being implicated after his defeat.
Enter the knowledge uncle, out change his surname. If you don't fight tonight, you will be done. Xiangzi said: "No." Zhang Meng talked about Han and Wei Zhijun: "Kill the officials who guard the embankment at night, and flood the army of Zhibo." "The Zhibo army saved the water and chaos, Han and Wei attacked it, and Xiangzi attacked him, defeating the Zhibo army and the birds Zhibo. ——"Warring States Policy"
Knowing that Zhiguo went back to change his surname, the Zhao, Wei and Han families felt that this matter could not be delayed any longer, so they rose up overnight and led Jinshui to Zhi Boyao's military camp, taking advantage of the chaos Zhao, Wei, and Han three families to attack at the same time, Zhi Boyao was killed in 453 BC, and since then the power of the Jin state has fallen into the hands of the three major clans of Zhao, Wei and Han, and with the development of history to 403 BC King Weilie of Zhou gave the title of Zhao, Wei and Korea, nominally recognizing the status of Zhao, Wei and Han princes, the state of Jin existed in name only, and the state of Jin finally died in 349 BC.
The division of the three families into the Jin Dynasty marked the end of the Spring and Autumn Period, and the beginning of the Warring States, one of the Five Hegemons of Spring and Autumn, was divided into the three kingdoms of Zhao, Wei and Han among the seven heroes of the Warring States, and also laid the foundation for the Qin State to advance east and annex the Six Kingdoms.