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Zheng Wugong's name is Ji Di. Ji Tu Tutu played an important role in the process of King Ping's ascension to the throne and escorting King Ping's eastward migration, and was valued and appreciated by Shen Hou. Shen Hou saw that he could keep filial piety and was brave and tenacious, so he privately suggested to King Zhou Ping: Let Dutu have a hereditary title, and also married his young daughter to Ji Dutu. In this way, Ji Ditu and King Ping have a dual identity. One is that Zheng Huan Gong is the uncle of King You, and he himself is also the family of King Ping; In addition, he married the daughter of the Shen family, Meng Jiang, who was the niece of King Zhou Ping's mother. And King Zhou Ping is still young, and the two closest people around him are his mother, the Queen Mother Meng Jiang; One is his uncle Shenhou. Such a double relative made King Zhou Ping trust Zheng Wugong more, and in fact, the Empress Dowager Meng Jiang and Shenhou trusted Zheng Wugong more. King Ping of Zhou conferred the title of Duke Wu of Zheng as the Situ of the Zhou royal family. Zheng Wugong could participate in the opinions of important matters in the court and China, and often dominated the decision-making ideas of the imperial court. But Zheng Wugong has his own more important things, that is, according to his father's instructions, Zheng Guo will move eastward, away from the dangerous place of Sanchuan. In this way, with the eastward migration of King Zhou Ping, Zheng Wugong became a dual identity: one was the minister of Gu Ming in the process of King Zhou Ping's eastward migration, and the other was the presiding over all the missions of Zheng Guo's eastward migration.

In the process of King Zhou Ping's eastward migration, due to the eastward movement of the royal family and the eastward march of the army, some of the princes and small states in the Central Plains did not know the information, so the soldiers guarding the defense had many misunderstandings or did not understand courtesy. As one of the princes of the four eastward migrations who maintained King Zhou Ping, Zheng Wugong naturally had to charge into battle. Conquest and admonishment of princes by force have become the daily routine of Zheng Wugong. These experiences not only improved the prestige of the Son of Heaven for the Zhou royal family, but in fact, Zheng Zhuanggong also had a psychology, that is, he wanted to use the prestige of King Zhou Ping to improve his prestige, which can be regarded as a fox and a fake tiger, but Zheng Wugong just wanted to make Zheng Guo dominate the surrounding vassal states and expand his territory.

During the whole process of the Zhou royal family settling in Luoyi, Zheng Wu Gongji Ditu, Wei Wu Gongji and the same personal secretary of King Zhou Ping. But unlike Wei Wugong, Zheng Wugong can never forget his unstable territory. Zheng moved eastward and carved out a piece of land between the vassal states that originally had no territory of their own. Since it was to open up new land between the vassal states, it was inevitable that there would be tensions with the surrounding vassal states. And what can suppress the surrounding princes is the value of Zheng Wugong's secretary in the Zhou royal family.

The state of Yi is adjacent to the state of Dongyu, and it is a relatively wealthy vassal state to the east of Luoyi. Moreover, in the Central Plains, the two countries dominated, and with the geographical advantage of being easy to defend and difficult to attack, the two countries enjoyed peace and spent the entire Western Zhou Dynasty historical period in peace. That is to say, in these two hundred and seventy years of comfortable life, there was no estrangement between the two countries, and there was no war around the two countries, which made the two countries arrogant and arrogant. When King Zhou Ping moved east to Luoyi, he seemed to have nothing to do with himself and didn't think so. However, Zheng Wugong's intervention in the Central Plains caused an unstable and discordant situation between the two countries. Because Zheng Wugong was eyeing the tiger, he began to covet the wealth and geographical location of the two vassal states. However, Zheng Wugong cannot swallow the two countries into his mouth at once, and if it is said that there are two countries, Zheng Guo is still weak, one is that he has just moved eastward, and the other is that the two countries have always lived a rich life, a strong economy, and excellent military equipment. If the two families deal with Zheng Guo together, it will be difficult for Zheng Guo to settle down. So Zheng Wugong must have a series of policy tools to infiltrate the two countries. First of all, Zheng Wugong took out many national treasures to bribe the two countries, so that the two countries each gave up five cities to support Zheng Guo's eastward migration. Although the two countries were unhappy, they knew that Zheng Wugong had the support of the Zhou royal family behind him, and now as the secretary of the Zhou royal family, he was a powerful courtier. Although the kingdom of Yi and the country of Dongyu are rich in the country, their titles are very low, one is a viscount and the other is a baron. Zheng Wugong also saw through the hearts of the two monarchs, and promised the two countries to promote the titles of the two countries in front of King Zhou Ping, so that the two monarchs had to reluctantly agree. So they assigned their own more desolate areas to Zheng Guo. It is said that there are five cities, but it looks like five villages, and those rich merchants and villagers must be moved into the rest of the cities.

After Zheng Wugong completed the first step of landing, he began his own bigger ambition. During this period, Zheng Wugong had to be diligent in the Zhou royal family while taking care of his own subjects. Diligent government and governing the country were originally a pair of contradictions, but under his shrewd planning of Zheng Wugong, they became mutually influencing and mutually reinforcing.

Zheng Wugong had to travel back and forth between Zheng and Luoyi, and the places he had to pass through were the Dongyu Kingdom and the Yi Kingdom. At the beginning, every time he passed through his two countries, he had to be severely interrogated by the soldiers guarding the city, and Zheng Wugong took out the identity of the secretary of the Zhou royal family to question his monarch, so that the monarch had to instruct his subordinates that as long as Zheng Wugong's motorcade passed by, one was to report to the monarch, and the other was to respectfully obey it. The monarch will also personally come forward to welcome the send-off. It made the Zhengwu Highway pass through the East and the Kingdom of Yi began to be majestic and arrogant. However, Zheng Wugong was not satisfied with this status quo, and sometimes had the idea of destroying two countries and plundering their land for himself. When Zheng Wugong helped King Zhou Ping settle down the Zhou royal family, he began to act on his own. On the one hand, he reported to King Zhou Ping how difficult it was for him to go back and forth to be diligent in government, and that the path of the vassal states must be strictly examined, and so on. Let King Zhou Ping sympathize with Zheng Wugong's difficulties first, and secondly, he is dissatisfied with the two vassal states. In order to stop the secretary of the Zhou royal family, that is, the disrespect of the two monarchs to the Zhou royal family, the whole process of the eastward migration of the Son of Heaven, as the two vassal states near the Zhou royal family, not only did not make any contribution to the king of Zhou Ping, but also as a court secretary, every time he passed by, he was subjected to the indecent interrogation of the soldiers of the two vassal states. This remark made King Zhou Ping angry with the two countries. And he gave Zheng Zhuang Gong a Shangqing waist card, with the power to cut first and then play, with the sword of King Zhou Ping's dissatisfaction and personal waist card, he began his own plan.

In fact, the country was originally a strong country. It is an ancient vassal state, and its basic area is in the middle and upper reaches of the Shuangye River east of Songshan and south of Xingyang. In the Xia Dynasty, it was officially established, and at the beginning of the Zhou Dynasty, it accepted the re-partitioning, so it became one of the few powerful powers in the Central Plains. However, in the Western Zhou Dynasty, due to a long period of comfortable life, the monarch of the state of Yi became very greedy for money and profit, arrogant and corrupt, and became a faint monarch who only knew how to eat, drink, dress up, and exploit the people. In the existing Book of Songs, there is a reference to the Emperor of the Kingdom of Yi "The Book of Songs, Juniper (郐) Wind, Lamb Qiu" wrote: Wear a sheepskin coat to go for a ride, change into a fox fur coat and go to the court, Don't we expect that you can work hard for the common people? Walking around in a sheepskin coat, changing into a fox fur coat and going to court, Don't we expect anything from you, your behavior makes people so sad. From here, you can feel the greed, extravagance, and ambition of this monarch. Zheng Wugong happened to take a fancy to the weakness of this monarch. In order to be able to take root here, Zheng Wugong took out Zheng Guo's treasures to bribe the monarch of Yi Guo. Won the favor of the monarch of the kingdom of Yi. Therefore, the discussion of relocating the people of Zheng Guo to the idle land of the State of Yi did not cause the monarch of the State of Yi to mind. Zheng Wugong's eastward migration was not only about the inconspicuous raw land in the territory of the Kingdom of Yi, but also about building a city here. He was more optimistic about the entire kingdom of Yi, the materially rich land and the many rich cities of the country, which tempted Zheng Wugong to make his long-term decision, that is, to use the country of Yi as a place for him to place his property and raise his people.

Due to the diligent government exchanges passing through the country, with Zheng Wugong's tall and majestic shore and generous hands, Zheng Wugong also won the favor of the wife of the monarch of the country. Whenever this Zheng Wugong passed by the state of Yi, the monarch of the state of Yi had to give a banquet to the prince of Zheng Wugong. Zheng Wugong on the wine table felt the hot eyes of this woman every time, because Zheng Wugong had his own thoughts, he eyebrows with him, and it seemed that he had the kind of relationship in which each had each other in his heart. After a long time, Zheng Wugong looked for an opportunity to have an affair with his uncle. But Zheng Wugong was not satisfied with his own selfish desires, and he also learned many important things about the country through his uncle. For example, the names of the important ministers who hold the military power in the court, where the military power is in charge, and those courtiers who control the economic lifeline of the country, and so on. Zheng Wugong recorded the information provided by his uncle one by one. Then, Zheng Wugong began his own plan. Zheng Wu ordered his subordinates to create a fake alliance in the suburbs of Yiguo, which was completely done by the people of Zheng Guo, the sacrificial cattle and sheep, the alliance of the alliance, and the names in the list of important ministers obtained from Shu Yu. caused a false alliance, and it seems that these important officials of the state of Yi were involved in the overthrow of the monarch with Zheng Guo. Then the utensils of his oath and the bamboo slips of the roster were buried in the ground. Then Zheng Wugong deliberately told his uncle what was false. and deliberately leaked it to the monarch of the state of Yi through his uncle.

The monarch of the state of Yi sent someone to check the scene, and sure enough, he found a list of important ministers of the court and the central government who had sworn together with Zheng Guo. This simple-minded monarch who only cares about pleasure expected that this was Zheng Wugong's ploy. Seeing that the important ministers in his court have sworn to Zheng Guoren that they want to betray him, the monarch of the State of Yi, and take refuge in Zheng Guo. Immediately ordered to be arrested and killed, which resulted in chaos and cannibalism within the country. Zheng Wugong besieged the army of the State of Yi before entering the city, and the soldiers of the State of Yi had already attacked and came to surrender one after another. made the kingdom collapse in an instant. Zheng Wugong took all the lands and cities of the state of Yi without a single soldier. In 767 BC, it was also the fourth year of the reign of King Ping of Zhou, and the ancient vassal state of Yi from the summer to the Zhou Dynasty disappeared. It turned out that the gold and silver treasures that Zheng Wugong bribed to the state of Yi were taken back one by one, not to mention, the treasures in the treasury of the state of Yi and the beauties of the harem were all owned by Zheng Wugong. However, that uncle did not become the wife of Zheng Wugong.

The Dongyu Kingdom was when King Wu of Zhou divided the Zhou world, and the younger brother of King Wen of Zhou, his uncle Yu Zhong, was sealed in the province and established the Dongyu Kingdom. After Zheng Wugong destroyed the state of Yi, the monarch of the Dongyu State was already frightened. He knew that maybe one day this close minister would fight his own idea, but the king of the Dongyu Kingdom was not very well defensive, but grovelled to the favor of Zheng Wugong, hoping that Zheng Wugong would be merciful to his subordinates. Zheng Wugong also understood the mind of the monarch of the Dongyu Kingdom, and passed by the Dongyu Kingdom more and more arrogantly. On this day, when Zheng Wugong came from Zheng Guo to the Zhou royal family to be diligent in government, he led Zheng Guo's brigade into Dongyu Kingdom generously, and waited for the monarch to walk out of the palace gate to greet the Zhou royal family secretary Shi Shi, and then pulled out his sword and cut off the head of the monarch of Dongyu State. In this way, the country of Dongyu was easily destroyed. and included the Dongyu Kingdom in the territory of Zheng State. The soldiers of the Eastern Kingdom became the soldiers of the Zheng Kingdom.