The decline of the Eastern Zhou Dynasty had reached such an extent that the Rong army dared to openly attack the royal legation in the hinterland of the Central Plains, capture the personnel of the mission, and rob the property of the mission. As for the provocation of the Rong army, Zhou Tianzi was helpless, and the princes were indifferent.

It turned out that a few years ago, the lord of Rong, who was entrenched in the area of Rongzhou (between Song and Cao), went to meet Zhou Tianzi. After offering tribute to the king, the envoy gave gifts to the ministers and doctors according to the custom. After receiving the gifts, the ministers should return the gifts and give a feast to the envoys.

Fan Bo is the secretary of the royal family, and he is also a bitter and arrogant person. He compared the gifts given to him by the envoy to his colleagues, and immediately felt that he had been slighted and insulted. The chief envoy of the Rong people is a person who is good at observing words and feelings, and he sensed Fan Bo's dissatisfaction, so he tactfully and secretly expressed the Rong lord's reverence for Fan Bo, and said a lot of compliments, but he still could not satisfy the other party.

As a result, when entertaining the Rong envoys, Fan Bo deliberately mocked them with the strength of wine, saying that the Rong people were living monkeys riding on horses in groups; He hadn't lowered his status to the point of having to deal with a monkey king; But they also want to get a peach in return from him. Rong was furious, immediately got up and left the banquet, and left the royal city overnight without even saying goodbye to King Zhou.

In the seventh year of Duke Lu Yin (BC716), in order to thank the princes for their generous assistance to the Eastern Zhou Dynasty, King Huan of Zhou specially sent Fan Bo to the countries to express his gratitude. Vamber led a large contingent eastward, and the pomp and circumstance dazzled the people. Everywhere the team went, the towns along the way were really tossed and tossed, as if the team was not a mission, but a bandit.

When he had offended all the countries he had sent to the mission, he began to return. The Rong people had been closely watching the movements of the mission, and when the procession passed through Chuqiu (present-day eastern Cao County), the Rong army launched an attack on the mission.

As a result, all the members and their belongings became the spoils of the Rong people. King Huan of Zhou was furious, and he wanted to order the countries around Rongzhou to attack the enemy immediately. But Zhou Gong stopped him and said: "The Rong people have never been rude to serve the Son of Heaven, and this sudden attack on the mission must have a reason, and it is unknown whether there is a great power behind it." If that were the case, the Son of Heaven's orders would not be carried out, and the princes would laugh at them. The minister thought that it would be better to see what kind of move the Rong people made next, and it would not be too late for the Son of Heaven to send his life. ”

After being captured, he was humiliated and humiliated, and a few days later the Rong released everyone except Vamber and gave some of their belongings to the surrounding countries to make them their accomplices.

After the normalization of relations between Lu and Qi, Ji Hou was very worried that Lu would abandon his old friendship for the sake of his new love, so he sent his younger brother Ji Ji to Lu to explore the tone of the Lu people. Lu Yingong said that the friendship between the two countries is still going on and will not change because of the intervention of Qi. Ji Ji asked Lu Guo for marriage, and Lu Yingong said that this was also what he wanted. So in the spring of this year, Lu Yingong married one of his sisters to Ji Hou.

Qi has been closely watching the movement of exchanges between Lu and Ji, and when Qi Xi saw that the two countries continued to marry, he sent his younger brother Yi Zhongnian to Lu State. The purpose of Yi Zhongnian's visit was ostensibly to consolidate last year's Aidi Alliance, but in fact, he came to find out information about Ji Guo. But the tone of the Lu people was very strict, and Yi Zhongnian didn't hear anything, but because of this, he deduced the position of the Lu State from it.

When Yi Zhongnian returned to China and returned to his life, he said: "The relationship between Lu and Ji is in the best period. If our country ventures into a war with Ji, Lu will not stand idly by. ”

Because Zheng and Song fought for many years, and both sides had their own allies, the war spread to other countries, and the Central Plains region was stirred up by the two countries for a while. Nowadays, no country in the Central Plains can achieve tranquility, and even a traditional power like Qi cannot be left alone.

The Duke of Qi hoped that the monarchs of Zheng and Song would sit down calmly and negotiate and end their hostility to each other; He sent an envoy to the two countries, and Zheng Zhuanggong said: "The orders of the Marquis of Qi cannot be disobeyed. ”

Song Yangong scoffed, he thought that Qi Xigong was purely meddling. But Confucius persuaded him: "The Qi Kingdom has been married to the royal family for several generations, and Zheng Bo is a dynasty secretary; Now the Marquis of Qi met the princes with great righteousness and was praised by the Chinese princes. If you refuse to attend, I am afraid that Zheng Ningsheng will use morality as an excuse to take unfavorable action against the Song State. ”

Only then did Song realize the seriousness of the problem, so he ordered to prepare for the trip. In July, the monarchs of Qi, Zheng, and Song held talks at Sudi (southeast of present-day Dongping County, Shandong).

But Zheng and Song had their own agendas. Zheng Zhuanggong never wanted to stop the war, but he pretended to be sincere and eager for reconciliation; However, Song Yangong Yin Yin suffered a lot, but he talked about the benefits of peace to Zheng Guoren with an arrogant and condescending attitude.

In fact, when Song Yangong was unashamed to express his opinion, even Qi Xigong, who was listening, gritted his teeth with hatred for him, and wanted to smash his dog head immediately, but at the same time, he was also worried that Zheng Zhuang Gong would do the same thing. Qi Xigong kept observing Zheng Zhuanggong's face; And Zheng Zhuanggong always maintained a calm and smiling expression, and he was relieved. After the talks, the two monarchs signed a peace agreement.

In addition to some clichés, there is an interesting element in the agreement. It turned out that there was a hundred-mile-long no-man's land between Zheng and Song. The Song wanted this land to be used as a buffer zone between the two countries, and neither side was allowed to reclaim and build cities on the land, and Zheng agreed.

In this way, the two countries regarded the land that belonged to the royal family as land at their disposal. The loyal and honest Song people kept their promises, while the pragmatist Zheng people gradually encroached on the land.

After Song Yangong returned to China, he began to brag about it, saying that this negotiation was negotiated by Zheng Zhuanggong on his own initiative; And he also participated because of Qi Hou's face and helplessness; If Song Guo is given another year, he will erase Zheng Guo from the map of China.

After Zheng and Song reached a reconciliation, Lu Guo's role was more embarrassing. As mentioned earlier, when Zheng and Yi invaded the Song Dynasty, the Song State asked the Lu State for help, and Lu Yingong was annoyed that the Song envoy lied and did not send troops. Song later took revenge on Zheng (but not against Yi), and now has ended hostilities with Zheng, so Song is ready to settle old scores with Lu. Lu Yingong was unwilling to settle a grudge with the Song State and was ready to solve the problem before the Song people came to find trouble, so he taught the Song State a hard lesson under the banner of avenging the Song people.

The people of the State of Yi felt really wronged, so they took refuge in the State of Qi from then on, and were enemies of the State of Lu throughout the Spring and Autumn Period.