As mentioned earlier, the Six Kingdoms of Chidi are a powerful military bloc.

In 660 B.C., the Chidi group wiped out the two northern powers of Xing and Wei in one fell swoop. After that, Chidi originally planned to cross the Yellow River and destroy Zheng Guo, if he could succeed, Chidi would be able to gain a firm foothold in the Central Plains and divide China into two, and the Central Plains would never have peace. However, the Chinese princes united as one, and under the leadership of Duke Huan of Qi, they carried out a stubborn counterattack, so that Chidi could never cross the Yellow River.

During the reign of Jin Xiangong, although the Jin people expanded their territory to the upper and lower reaches of Fenshui and occupied a large area of land west of the Lu Kingdom, Jin Xiangong always avoided a head-on conflict with Chidi. The fact that the Jin Kingdom and the Chidi Kingdom were separated by the treacherous Taiyue Mountain, and that the two forces were scattered with many tribes of the Bai Di and Hu clans, eliminated the possibility of a direct conflict between the two countries.

After the Qin and Jin broke up, the Jin State was restrained by the Qin and Chu countries, and had to adopt a soft policy towards Chidi.

In the spring of the sixth year of Lu Xuangong, the old monarch of Lu State died, and the crown prince ascended the throne as a Luzi baby. Luzi Baby is cowardly, spineless, and powerless, and the power of the state falls into the hands of his uncle, Yushu.

During his lifetime, Lao Luzi pursued a strategy of developing national strength, consolidating alliances, and moderate governance. In terms of diplomacy, although he denied that he belonged to the pro-Jin faction, he always advocated living in peace with the Jin state and not being enemies of each other. Under the advocacy of Lao Luzi, Lu and Jin not only established diplomatic relations, but also became a country of in-laws.

However, after the infant ascended the throne, Yu Shu overturned all the peace policies formulated by the previous emperor and began to embark on the road of hegemony of foreign aggression; This is not because he has any great talents, but because he believes that only by changing the status quo can he gain greater prestige and seize greater power.

In the later period of the reign of the Duke of Jin Cheng, Lu Guo tore up the peace agreement signed with the Jin State, and levied two ** teams of Jia and Liuhu to invade the Jin State. At that time, the land of the Jin Kingdom was divided into two by the Taihang Mountains, and the capital and important cities were in Shanxi. The Lu people then went east out of the Taihang Mountains and attacked Huaiyi and Xingqiu (now east of Wenxian County, Henan) in the Jin Kingdom. The Jin people were ill-prepared for the threat from Chidi, and suffered a great loss as a result. Jin Chenggong was furious and planned to start an all-out war with the Lu Kingdom.

Xun Lin's father believed that the Jin State was under great pressure from Qin and Chu at the same time, and could not open up a third battlefield, and he advised: "Yu Shu expropriated his countrymen, enslaved and oppressed his allies, and was reckless against other countries, which will inevitably not last long." The minister thought that it was better to remain silent, so that he would become even worse, so that he would harm the people greatly, and make him full of evil, so that the country of Lu would surely perish. The Book of Zhou says: 'Destroy the Great Shang. That's what it means. His point of view aroused the unanimous agreement of the secretaries and doctors, and Jin Chenggong had to endure this evil breath for the time being.

In the autumn of the following year, the Lu people robbed the grain of Xiangyin (now Jiyuannan, Henan), a small city in the eastern part of the Jin Kingdom.

Since Bai Di had always remained neutral and forbade either side to attack the other through their own land, the Jin decided to pull Bai Di into the alliance. Just when the Jin people came up with this idea, a fierce conflict broke out between Qin and Bai Di, and the Bai Di people were completely defeated, losing not only a large number of people, but also a large area of land west of Hexi. The Jin people took this opportunity to send envoys to Bai Di, and the two sides hit it off and successfully signed a peace treaty.

Seeing that the situation had become favorable to the Jin State, Jin Cheng once again proposed to attack the Lu State. Xun Lin's father also said: "For these countries of Chidi, if you can't destroy them all within a year or two, don't start a war. Chidi's power is so strong that once the war machine is launched, the entire Baidi will be on their side.

"The chariots of the Jin army were only suitable for fighting on the plains, while the Chidido lived in the mountains, and the enemy knew the terrain and moved quickly. Long-term confrontation with Chidi will consume a lot of national strength. Now the monarchs of Chidi are very arrogant, they act recklessly regardless of the people's livelihood, and seem to be following the old road of ugliness; Moreover, Bai Di was also severely oppressed by them, and they were forced by Chidi's strong military strength to dare not fall to the Jin State.

"Now we need to be ready, strengthen our training, make alliances, and when the enemy is full of evil, we can destroy them on the basis of it."

From then on, the Jin people were preparing to play a big game of chess, and the strategic goal was to completely destroy Chidi. The Jin began to focus on training their soldiers for mountain warfare, and they also extensively collected all kinds of intelligence on the Chidi group, bribing and dividing various forces within the enemy.

But as time passed, the Jin people sincerely felt that the preparations for the Chidi battle were really very arduous, and it could not be completed in three or five years. Jin Chenggong did not wait for the day of the decisive battle with Chidi: he died three years before the Battle of Yi broke out.

The Chidi clique was united in foreign warfare, but in peacetime they were fighting against each other. Lu Guo is the leader of the group, and the country is strong, populous, and powerful. Yu Shu is an arrogant and murderous fellow, Luzi is submissive to him, the ministers do their best to flatter, and the people are silent.

After the defeat at the Battle of Yi, Jin Jinggong ordered Shi Wuzhuo to set up an investigation team with the task of finding out the cause of the defeat and punishing those who were mainly responsible. This order has made fear in those who have disobeyed military orders and jumped up and down, some have hidden themselves well, others have used bribes to get away with it.

However, the culprit is still dead and does not admit his mistakes, and he feels that this attitude can prove his innocence. In response to the investigation, Xian Wei not only took an arrogant attitude, but also accused Shi Wuzhuo of taking the opportunity to abuse his power and accept bribes. He complained to Jin Jinggong again, saying that Shi Wuzhuo had an old grudge with him, and was now joining forces with political enemies to persecute him, and asked Jin Jinggong to reappoint an impartial investigator.

In fact, Xianyu was weaker than anyone else, and while trying to delay time, he sent people to contact the Dongshan Gaoluo clan, gave them huge bribes, and invited them to invade the Jin Kingdom.

In the autumn of the following year after the Battle of Yi, the Dongshan Gaoluo clan went out to attack Jin. The enemy army first ravaged and ransacked the farmland of the villages outside the city of Wangguan, and then looted and destroyed all the way to Jiangdu.