In the spring of the twelfth year of the reign of Lu Wengong (615 BC), Yu Bo died. During Uncle Yun's serious illness, the crown prince Zhu Ru has been hiding in Fuzhong City to have fun, showing a "love" attitude towards his father's illness and the future of the country. In this way, the servants had a different heart for the prince.

After the death of Uncle Yun, the crown prince slowly returned to China to "mourn", but the doctors closed the city gate and refused him to enter, and told him that the Kingdom of Yu had established a new king, ordered him to leave the Kingdom of Yuan immediately, and forbade him to step into the country half a step further.

Zhu Ru immediately turned the head of the car and fled to Lu without stopping. Duke Lu Wen received him with the courtesy of the princes, and Zhu Ru presented the big treasure jade of the Caiyi Fu Zhong and the Yu Kingdom to Lu Wen Gong, and Lu Wen Gong left the big treasure jade and gave the Fu Zhong to Zhu Ru. Fu Zhong was placed under the protection of the Lu State, and the servants did not dare to use force to recover their land.

At the beginning of the year, the Qin state began planning a major military campaign against the Jin state. It turned out that after the army that escorted Gongzi Yonggui to Jin was beaten to the head of Linghu, there have been several small-scale wars between the two countries in recent years. The two sides have not taken any advantage from each other, Qin Xianggong is unwilling, he hopes to fight a big battle with the Jin State happily, and no matter whether he wins or loses, he must make an end with the other party.

Qin Kanggong first sent an envoy to Bai Di, but there was a sudden internal turmoil in Bai Di, and people were too busy to take care of themselves, so they had no energy to help outsiders.

The Qin people sent envoys to Yingdu to ask for help from the people of Chu.

As mentioned earlier, the Qin army captured Shen Gong Douke and Xi Gong Qu Yukou in Shangmi in the 25th year of Lu Gong. After the outbreak of the Battle of Kun, Qin Mugong decided to reconcile with the state of Chu in order to fight against the Jin state. He sent Dou Ke and Qu Yukou back to China and asked them to convey his good wishes on his behalf. King Cheng of Chu was also thinking of befriending the Qin state, so he was very happy, and he immediately sent an envoy to the Qin state, and the two countries smoothly established an alliance.

Subsequently, whenever the Chu State invaded the Central Plains, the Qin people would always come out to do things in the west of the Jin State in order to contain the actions of the Jin army. The Jin people were made unable to take care of things, and the Jin Linggong was too young to bear state affairs, and the control of the Jin State over the princes of the Central Plains gradually weakened.

However, when the Qin envoy came to the state of Chu, he saw that the king of Chu Mu was emaciated, his face was gray, his movements were slow, and his physical condition was very bad. King Chu Mu regretfully declined the Qin envoy's request, but promised that once his health recovered, he would definitely go out to fight with the Qin people.

The Qin people knew in their hearts that they were counting on King Chu Mu's recovery, and they could no longer pin the success of the Jin Dynasty on the health of King Chu. In order to gain the support of other countries, Qin Kanggong sent Western begging to other countries to beg for teachers.

The first stop of Western Begging was Zheng Guo. Although Zheng Guo broke away from the Huaxia Alliance, Zheng Mugong was originally a pro-Jin faction, but he had to fall to Chu State; And because the Qin army had attacked Zheng for thousands of miles, Zheng Mugong did not have a good impression of the Qin people; Therefore, he particularly simply rejected the request of the Qin people.

The second stop is the defense of the country. Although Wei Guo had a cold relationship with the Jin State, Wei Chenggong was unwilling to take the initiative to provoke the big devil, so he politely refused the request of the Qin people. Western begging bypassed the Song State and came directly to the Lu State. But the people of Lu didn't want to wade into this muddy water, so they sent away the Western Begging Technique with beautiful words and precious gifts. After walking around but failing to bring in an ally, the Qin decided to attack the Jin Kingdom alone.

In winter, the Qin army crossed the Weishui River in the south and passed through Taolinsai in the east, and then crossed the Yellow River in the north. On the north bank, there is a small city called "Detention Horse", which is a fortress that guards the crossing of the Yellow River. The Qin army then launched an attack on the Prison Horse and captured the Prison Horse Fortress two days later.

While the Qin army continued to march north along the river, the three Jin armies intercepted their way in the meandering area. The Qin army had no choice but to camp with its back to the Yellow River, while the Jin army set up camp opposite the enemy, and the camps of the two armies were about ten miles apart.

The Jin army was led by Zhao Dun and Xun Linfu, the army was led by Yin Que and Xuan Piao, and the army was led by Luan Dun and Xu Jia. The generals held a pre-battle meeting after checking the enemy's defenses.

Yu Yu said: "The Qin army is small in number and the supply is insufficient, so it must not last; Therefore, the enemy will be anxious to fight, so please fortify the army and wait for the enemy to attack, the Qin army will retreat if it cannot be defeated, and then pursue it, and our army will win a big victory. ”

Zhao Dun thought that this was the best plan, so he ordered all armies to strengthen the fortifications, and when the enemy provoked, they could not hold out.

However, Zhao Dun's cousin Zhao Chuan was adamant in favor of war, saying: "The Qin army was small in number, the supplies were insufficient, and they camped on the river. What is the reason why our army has a huge advantage but does not dare to go to war with the enemy? When did the Jin army become so timid and cowardly? Could it be that the person sitting on the seat of the leader of the Huaxia Alliance is a person who can only rely on the enemy army with delaying tactics? ”

Zhao Chuan's words resonated with some people, and Xu Jia and others also followed Zhao Chuan's coaxing.

Once Zhao Dun makes a decision, he will never allow others to contradict him. He tried to silence the dissidents, but Zhao did not relent; Zhao Dun saw that the scene was very chaotic, so he ordered Da Sima to take the firing squad outside the tent and prepare to serve the opponent with a great punishment. The dissidents, who had already learned Zhao Dun's violent methods, showed fear on their faces and did not dare to continue speaking.

The soldiers of the Jin State dug deep trenches, built high forts, and closed their doors. On the other hand, the Qin people hoped for a quick victory, and they first sent envoys to issue a war letter, and the Jin people should not; He also sent a small army to provoke, but the Jin army did not come out, but condescendingly released arrows to drive out the enemy. All the methods of stimulating the enemy to fight have been exhausted, and the Jin people just don't engage in battle.

Qin Kanggong was at a loss, so he summoned the Shihui and asked him what he should do. Shihui said: "Zhao Dun has newly promoted a secretary named Yu Yu, who used to be Zhao Dun's teacher and won Zhao Dun's trust. He is a scheming man who is particularly good at spotting the enemy's weaknesses and exploiting them. Our army could not stay for a long time, and the Jin army avoided fighting and wanted to drag down our army; This strategy is the best winning strategy, and it must have come up with a fool's errand.

"But the Jin doctors all think that Yu Yu is from a low background and has no military exploits, and he only ascended to the sky because he was appreciated by Zhao Dun, so he was very dissatisfied in his heart. Zhao Chuan is the son-in-law of the Duke of Wen of the Jin Dynasty, who is favored and young, who does not understand military affairs but is arrogant and belligerent. He especially hated Yu Piao, believing that his position should be his; And Yu Yu not only robbed him of his position, but also became his top boss, and he will definitely destroy Yu Yu's plan. As long as the monarch finds the location where Zhao Chuang is camping and sends light troops to provoke him, Zhao Chuan will definitely lead his troops to attack, and the main force of the Jin army cannot turn a blind eye and will definitely follow him to fight. The purpose of our army has been achieved. ”

According to the enemy's military flag, the Qin people quickly found the location where Zhao Chuanbu was encamped, and Qin Kanggong selected some sergeants who spoke particularly badly and had a very loud voice on weekdays to lure the enemy into scolding the formation.

In the early morning of December 4, the team with a peculiar mission set off on a mission in several chariots; At the same time, Qin Kanggong sent an army to meet them on the way to prevent them from being killed by the enraged Jin people.