At this time, all the essence of the Shang Dynasty had been exhausted, and although it was the victor, with countless prisoners and goods, the empire had become an empty shelf. After defeating Dongyi, the Dongyi tribes were still in rebellion, so the main forces of Shang (Wen Zhong and Fei Lian commanders) had to remain in the Jianghuai area, and the interior of the Shang Dynasty had been relatively empty.

Therefore, with the wisdom and strength of Emperor Xin, he could only turn a blind eye to the Zhou people's expedition in the west, but tried his best to digest the results of the war and strive to heal the wounds of the war in the shortest possible time. At this time, the important ministers within the Shang Dynasty all advocated diligent cultivation of virtue and government, and did not want to fight with the remnants of Dongyi again, but Di Xin's plan was different from theirs, and the results that he had finally achieved could not be lost, and he did not want to withdraw his troops from the southeast. Once the army was withdrawn, Dongyi would be resurrected, and Di Xin was also skeptical of the position of the clan nobles.

The emptiness of the interior of the Shang Dynasty was at first a top secret and was not known to the Zhou State, and it was not until the internal history turned to Zhilai that the Zhou State realized that there was an opportunity to take advantage of it, but it was not possible to act rashly, and it was necessary to be fully prepared, and it was possible to launch a surprise attack without preparation for the Shang State.

In the forty-eighth year of Emperor Xin (the seventh year of King Wu of Zhou, BC1054), Yiyang appeared;

Yiyang, in ancient times, refers to divine beasts, monsters, and also refers to earth gods, which will only appear when the dynasty is about to end. The juxtaposition of the two days indicates the emergence of a new king, and the saying of later generations that there is no two days refers to the fact that there can only be one ruler for the people. At that time, the Zhou State had been given Jiuxi by Emperor Xin and built the Lingtai Piyong, which showed that the Zhou State was acquiesced by Emperor Xin as a relative prince.

These also seem to be signs of the fall of the Shang Dynasty.

In the 51st year of Emperor Xin (the 10th year of King Wu of Zhou, BC1051), after four years of preparation, Ji Fa and Jiang Ziya wanted to continue to complete Ji Chang's great cause of revenge and conquer the Shang Kingdom in the east.

Ji Fa led his army to inspect the defense in the Zhou-controlled area, first traveling west to Bi (north of Cheng, Xianyang, Shaanxi) to pay respects to the tomb of King Wen, and then turned east. In the Chinese army, the god sign with the name of his father Xi Bochang was erected, carried by a car, and placed in the Chinese army, Ji Fa called himself "Prince Fa", saying that he was on the order of King Wen to carry out the expedition, and did not dare to go by himself. Ji Fa issued a notice to all officials, asking everyone to be respectful and religious, inherit the virtues of their ancestors, and also set rewards and punishments to better complete the task.

When the army left the division, Jiang Ziya, who was respected as "Master Shangfu", held Huang Yue in his left hand and Bingbai in his right hand, and said: "Cang Yu Cang Yu, lead the soldiers, assemble the ships, and behead the one who is late." ”

Bo Yi and Shu Qi stopped the army that was being pulled out from Bi, and the two of them knocked on their horses and admonished: "Can it be regarded as benevolence to crusade against the monarch as a courtier?" King Wu's guards wanted to kill them, and the military advisor Jiang Shang persuaded them: "This is a righteous person, don't kill them." So he helped them away.

This operation, all the way to Mengjin (Mengjin County, Luoyang, Henan), was the first large-scale expedition after King Wu ascended the throne. This observation of the troops was obviously of the nature of an exercise, which was convenient for familiarizing with the terrain and routes, so as to facilitate the future expedition of the army across the river to the north, and also to test the reality of the Shang Dynasty and the reaction of the princes. The princes all thought that Zhou would cut down the merchants, and they came to the alliance one after another, and there were 800 princes who came unexpectedly. The situation of people's hearts to Zhou and Di Xin being isolated and helpless has been formed, and the princes have all urged Ji Fa to immediately march to Chaoge. The princes all said, "It's time to crusade!"

However, Ji Fa and Jiang Shang believed that the time was not yet ripe, and there were as many as 1,800 princes in Shang Tang, so less than half, and the Shang Dynasty still had followers. After the army crossed the Yellow River, he ordered the whole army to return, which shows Zhou's fear of Shang. Ji Fa said: "You don't know the destiny of heaven. "Because the time is not yet fully ripe, the class teacher has returned to the court. This rehearsal of the destruction of Shang is known as "Mengjin Meeting" or "Mengjin Watching Soldiers" in history.

This time, Ji Fa's alliance with the princes was not known to Di Xin, which shows that the rule within the Shang Dynasty has been seriously weakened by the war against Dongyi and internal struggles.

In the same year, Emperor Xin's suspicion of the royal family had reached its peak, ending with Jizi being placed under house arrest, Bigan being killed, and Weizi running away, and all three of them had prestige among the princes, and the Shang Dynasty's internal rule was shaky after a severe division. The princes also completely lost hope in Emperor Xin.

Jizi, Mingxu Yu, the son of Wen Ding, the elder brother of Emperor Yi, the uncle of the king of Zhou, the official Taishi, was sealed in Ji (western Liao). Jue is the son, so it is called the basket. Philosopher, politician, representative of Yin Shang ideology and culture.

Jizi and Weizi, Bigan, in the last years of Yin Shang are equally famous, and called "Yin Mo Sanren", in Confucius's "Analects of Weizi" said: "Weizi goes, Jizi is a slave, than Gan and die, Yin has three benevolence." ”

As the precursor of Confucianism, Jizi inherited Dayu in thought, and opened the Zhou Gong "Mingde to protect the people" and Confucius's "benevolence".

An important characteristic of thought is to see the subtleties.

When the decline of a country and a nation begins to appear, it is vigorous on the outside, but in fact, the inner bag is up, and the so-called gold and jade are outside, and they are ruined. The historical record of the Song Weizi family contains "the basket is like a chopstick", which is what it says. "The season of husband and businessman, the abolition of discipline, and the extreme depravity of morality. The demise of the Shang Dynasty was not just the fault of King Xu, but the entire nation indulged in depraved customs that made the world less popular than the people, just like the last days of the previous dynasties.

When the Jizi was in power, he saw that the king of the Xuan must use the elephant chopsticks for dinner, and he felt very luxurious, and sighed: "He is the elephant chopsticks, and he must be the jade cup, and the cup, he must think of the strange things in the distance and the royal ones, and the palace room of the horse palace has gradually begun from here, and it cannot be vibrate." ”

Sure enough, later the king of Shang was tyrannical and unreasonable, drinking and lewdness all day long, ignoring politics, and spending extravagantly. The uncle of the king of Zhou, Jizi, saw that the king was so unreasonable, and tried hard to discourage him, but he did not listen to the king of the emperor after repeated admonitions.

When someone persuaded Jizi to leave the court, he said, "If I do this, I am "showing the evil of the king" and "talking to the people". So, Mizi pretended to be crazy and lived alone in Miyama, and in his spare time, he used the music "Mizi Exercise" to express his depressed and depressed mood. When the king heard about the recent situation of Jizi, he was placed under house arrest in a place called "Jizitai" today. Jizitai is in present-day Xihua County, Henan.

Bigan, the surname of the child, the younger brother of Di Yi, the uncle of Di Xin, and the young master of the official (prime minister).

When he was younger than Gannian, he assisted Emperor Yi of Shang with a high position of young master (Yaxiang), and was entrusted with the task of assisting Emperor Xin (King of Shang).

Bigan advocated reducing taxes and forced labor, encouraging the development of agricultural and animal husbandry production, advocating smelting and casting, and enriching the country and strengthening the army.

At the end of the Shang Dynasty, Emperor Xin was tyrannical and debaucherous, tyrannical and tyrannical, and abused heavy punishments. It means that if the king is at fault, he will not be able to admonish the word of loyalty, and if he is afraid of death, he will not be able to admonish the word of bravery. Therefore, if the king is wrong, he must admonish, and the king will not accept it, and even the courtiers will be punished with death, which is what the courtiers can do.