Zhao Wei Han shi called the Three Jins, he was formed by the split of the powerful Jin state. Zhao Weihan's confrontation with the Zhi clan was not comparable to the confrontation with the Qin state, and the unity of the qi against the Zhi clan was a battle forced to be helpless (a single victory took the Zhi clan); against the Qin state was a long struggle (many victories could not destroy the Qin state and achieve the final victory). The Jin state began to dominate the Central Plains from the Jin Dynasty, and the system of the Jin state was military and political integration. During the Spring and Autumn Period, the strength of the princes was allocated according to the level of the title, and under normal circumstances, Zhou Tianzi had the configuration of the six armies (as long as he raised them), while the princes of the Jin State could only have the configuration of the three armies.
A backward kingdom that had been pressed to the ground by Wei Wupao for decades had actually become the strongest princely state in the Warring States in a matter of decades, through the efforts of three generations of kings. In fact, from the process of the gradual strengthening of the Qin state, it can be seen that the other princely states have done nothing at all. They forgot that the Qin State was secretly working hard, so they would inevitably be abandoned by the Qin State.
The three families were divided into Jin, forming a situation of seven heroes in the Warring States, and the Qin state, through the Shang martingale transformation method and the wide selection of talents, was located in the western region and had good geographical advantages, long-term peace and stability, no invasion of foreign enemies, and the productive forces were able to develop well. The other six kingdoms, especially the three kingdoms of Zhao, Han, and Wei, had been attacking each other for a long time, and their strength was greatly damaged. Therefore, the State of Qin grew into the strongest country among the Seven Heroes in one fell swoop, and also had the capital to dominate the world.
However, after the destruction of the Zhi family, the three families of Zhao Wei and Han each established a princely state, and each family had a strong strength. At this time, they did not have a common threat, so they naturally began to have contradictions. There is no need to feel sad for the ancients, in fact, in any period, this is the case. A mature politician will never put personal feelings above the interests of the country.