In the twenty-fourth year of the Duke of Qi Huan (662 BC), Shan Rong attacked the Yan State, and the Yan State asked the Qi State for help. However, Guan Zhong believed that at that time, there was Chu in the south, Shanrong in the north, and Di in the west, all of which were the disasters of the Central Plains.

If the monarch wants to conquer the Chu State, he must first attack Shanjung and stabilize the north before he can concentrate on conquering the south. Now that Yan has been convicted, he has asked for help from our country, and he will raise troops to take the lead in destroying it, and he will definitely be supported by all countries.

Duke Qi Huan thought so, so he raised troops to save Yan. Guan Zhong accompanied the army to attack Shanrong to rescue Yan Guo, and fought until Guzhu returned to the division.

In the twenty-ninth year of the reign of Duke Huan of Qi (657 BC), the state of Chu sent troops to the state of Zheng again. Duke Qi Huan and the princes of Guan Zhong jointly rescued Zheng Kangchu. Due to the continuous attack on Zheng by the state of Chu, Duke Huan of Qi and Guan Zhong Yolu, Song, Chen, Wei, Zheng, Xu, Cao and other eight countries formed a coalition army to go south, first destroying the state of Cai in one fell swoop, directly pointing at the state of Chu. Under the situation of the pressure of the large army, the state of Chu sent envoys to negotiate with him.

In the thirty-fifth year of the reign of Emperor Huan of Qi (651 BC), King Hui of Zhou died. The Qi Huan Guild and the vassal states supported the crown prince Zheng as the son of heaven, this is the king of Zhou Xiang. After King Xiang of Zhou ascended the throne, he ordered Kong to give Qi Huan Gongwen Wuyin, Tong Bow and Arrow, and Dalu in recognition of his merits.

Duke Huan of Qi convened a general meeting of all princes to hold an ordination ceremony in Kuiqiu (that is, the border of Lankao, Henan and Minquan County in later generations). At the ceremony, Zai Kong asked King Xiang of Zhou for his order, because Duke Qi Huan was old and virtuous, so he did not have to bow down to receive the gift.

Duke Qi Huan wanted to obey the king's orders, and Guan Zhong said from the side: "Although the king of Zhou is humble, the courtiers must not be disrespectful." Duke Qi Huan then replied: "Tianwei doesn't disobey Yan at hand, does Xiaobai dare to be greedy for the king's life and abolish his ministers?" After that, I saw Qi Huan Gong walking down the steps, bowing to the head again, and then going to the hall to receive the gauntlet.

When all the princes saw this, they all admired the courtesy of Qi Jun. Qi Huan Gong reaffirmed the alliance and made a new alliance. This is the famous "Aoigaoka Alliance" in history.

In the thirty-ninth year of the reign of Duke Huan of Qi (647 BC), the younger brother and uncle of King Xiang of Zhou led the collusion of the Rong people to attack the capital, and the royal family was in turmoil and was very crisis. Duke Huan of Qi sent Guan Zhong to help King Xiang quell the civil strife. Guan Zhong did a good job and was appreciated by King Zhou.

In order to show respect for the overlord's subordinates, King Xiang of Zhou prepared to use Shangqing etiquette to set up a banquet to celebrate Guan Zhong's achievements, but Guan Zhong did not accept it. In the end, he accepted the treatment of the courtesy.

In the forty-first year of the Duke of Qi Huan (645 BC), before Guan Zhong's death, Duke Qi Huan asked who could replace the phase, Guan Zhong recommended Gongsun Xi Peng, and asked Qi Huan Gongyuan to leave Fang, Ji Diao, and Yi Ya, after Guan Zhong's death, the successor Gongsun Xi Peng and Bao Shuya continued to use the political system left by Guan Zhong. Guan Zhong's descendants were appointed as doctors and enjoyed blessings for generations.

Guan Zhong is a generation of geniuses, he is not only able to command the army in martial arts, but also able to govern the country, and the reason why the Qi country has Guan Zhong will be strong for a while.

Le Yi, year of birth and death unknown, surname of the child, Le's, name Yi, the word Yongba. Zhongshan Lingshouren, an outstanding military strategist in the late Warring States period, a descendant of Wei General Leyang, worshiped General Yan, was named the monarch of Changguo, and assisted King Yanzhao to revitalize the Yan Kingdom.

In 284 B.C., he commanded the allied forces of Yan and other five countries to attack Qi and conquered more than 70 cities, creating a famous example of defeating the strong with the weak in the history of ancient Chinese warfare, and avenging the revenge of the strong Qi against Yan. Later, because of the suspicion of King Yanhui, he defected to Zhao State, and was sealed in Guanjin, known as Wangzhujun.

Le Yi's ancestor Le Yang was a general under Wei Wenhou (Wei Si, the founding monarch of Wei). He once led his troops to capture Zhongshan (see the Battle of Wei to destroy Zhongshan), because of his merit was sealed in Lingshou, after the death of Le Yang, he was buried in Lingshou, and since then the descendants of the Le family have settled here for generations. After Zhongshan was restored, he was destroyed by King Wuling of Zhao (see Zhao's Battle of Zhongshan), and Le Yi became a native of Zhao.

Le Yi is a bright young man who likes the art of war, and someone in Zhao Guo once recommended him to be an official. After King Wuling was besieged and starved to death in the Dune Palace, he left Zhao for Wei.

At that time, King Qi was very strong, defeated Tang Yi, the prime minister of Chu, in Chongqiu in the south, defeated Wei and Zhao in Guanjin in the west, and then united Han, Zhao, and Wei to attack Qin, and also helped Zhao to destroy Zhongshan, and broke Song, expanding the territory of more than 1,000 miles.

Together with King Qin Zhao, he fought for the title of emperor, and soon he canceled the title of Eastern Emperor and remained king. The vassal states all planned to turn their backs on Qin and submit to Qi. However, the self-esteem and arrogance of King Qi were very arrogant, and the people could no longer tolerate his tyranny.

King Yan Zhao thought that the opportunity to attack the Qi State had come, so he asked Le Yi about the attack on the Qi State. Le Yi replied: "Qi State, it was originally a hegemon, and now it still retains the foundation of the hegemon, the land is vast and the population is large, so it cannot be easily attacked alone. If the king must attack it, it is better to unite with Zhao and Chu and Wei to attack it together. “

So King Yan Zhao sent Le Yi to form an alliance with King Huiwen of Zhao, and sent others to unite Chu and Wei, and asked Zhao to persuade Qin with the advantage of attacking Qi. Because the princes thought that the arrogance and tyranny of King Qi was also a scourge to all countries, they all vied with Yan to jointly crusade against Qi.

The Yan army, under the command of Le Yi, pursued and defeated the fleeing enemy alone, and pursued it all the way to Linzi, the capital of Qi. When the king of Qi saw that the lonely city of Linzi was difficult to defend, he fled to Juyi and held the city. Le Yi stayed alone to lead his troops to patrol the occupied places, and all the cities of Qi held on to the cities and refused to surrender.

Le Yi concentrated his forces on attacking Linzi, and after taking Linzi, he seized all the treasures and belongings of the Qi State and the sacrificial utensils of the Zongmiao and transported them to the Yan Kingdom. King Yan Zhao was overjoyed, and personally rushed to the shore of Jishui to comfort the army, rewarded and rewarded the soldiers with wine and meat, and gave Changguo to Le Yi, with the title of Changguojun.

When King Yan Zhao brought back the loot captured in Qi State, and let Le Yi continue to lead his troops to attack the cities of Qi that had not yet been taken.

In 279 BC, King Yan Zhao died, and the crown prince Lezi ascended the throne and was called King Yan Hui. King Yan Hui had been dissatisfied with Le Yi since he was the crown prince, and after he ascended the throne, Tian Dan of Qi State learned that he had a conflict with Le Yi, so he carried out a counter-plot against Yan State, spreading rumors and saying: "There are only two cities that have not been captured by Qi State."

And the reason why he didn't take it down as soon as possible, I heard that Le Yi had a grudge against the newly enthroned monarch of Yan Guo, and Le Yi used troops intermittently to deliberately delay time and stay in Qi State, preparing to claim the throne in Qi State. What Qi Guo is worried about is only afraid that other generals will come. “

At that time, King Yan Hui was already suspicious of Le Yi, and was provoked by the anti-intrigue of the Qi State, so he sent a cavalry robber to replace Le Yi as a general, and recalled Le Yi. Le Yi knew in his heart that it was ill-intentioned for King Yan Hui to send someone to replace him, and he was afraid that he would be killed after returning to China, so he went west and surrendered to Zhao.

Zhao Guo gave the place of Guanjin to Le Yi, and the title was Wangzhujun. Zhao Guo has great respect for Le Yi and his favorite, which he uses to shake and deter Yan and Qi.

Qi Guotian Shan later fought with the cavalry, and really set up a deception to confuse the Yan army with a scheme, and as a result, the cavalry army was defeated under the city of Jimo, and then chased the Yan army in battle, chased the Yan army to the north, chased it to the north to the Yellow River, recovered all the cities of the Qi country, and welcomed the king of Qi Xiang back to the capital Linzi from Juyi.

King Yan Hui regretted sending cavalry robbers to replace Le Yi, resulting in the defeat of the Yan army and the loss of the occupied land of Qi; However, he resented Le Yi's surrender to Zhao State, and was afraid that Zhao State would use Le Yi to take advantage of the defeat and fatigue of Yan State's army to attack Yan State.