According to Sun Wu's strategy of responding to the enemy, Wu Yuan and Bo Yao led 20,000 troops to garrison Liuyi, and Sun Wu and Zhuan Yi led 30,000 troops to garrison Qianyi. In addition, Zhuan Yi was responsible for patrolling between the two cities to protect the safety of the grain supply.

When the state of Chu saw that the Wu army was coming, King Zhao worshiped Shen Yinshu as a general and led 80,000 troops to rescue the land of Qianyi. The military horses were halfway to the middle of the journey, and received a report from the Malay: Qianyi and Liuyi had been lost, 10,000 soldiers defending the city were exhausted, and the guard Ziyuan died by suicide.

Shen Yinshu was shocked and thought to himself: "Wu soldiers come and go quickly, and this time they have destroyed Qian, Liuliang. If you want to recapture these two lost cities, it will not be easy for your 80,000 soldiers and horses to fight against 50,000. Siege is not as good as two armies facing each other on the plains, and there is no absolute numerical superiority, so it is easier said than done! Shen Yinshu had the intention of confrontation, planning to find an opportunity to cut off the logistics supply line of the Wu army, and if the Wu army was not supported enough, he would retreat and return to the country.

Shen Yinshu arrived outside the city of Qianyi, and had already found out, knowing that Sun Wu and the soldiers were each defending one place, and they were in a horn, so they divided their troops into two routes, attacked Liuyi all the way, and led the main force of the Chu army to attack Qianyi.

But Sun Wu defended the city, and did not defend the city, but often sent troops out of the city to attack and kill. Whenever the Chu army was preparing siege equipment, or when the troops were just preparing to assemble under the city, the Wu army would suddenly open the city gate and rush out. In particular, the group of sinners who dare to die, holding a shield in one hand and flying Wu hooks in the other, are like a group of farmers harvesting seedlings, cutting people when they see them. When the Chu army suffered a loss and gathered to surround this group of lone soldiers outside the city, the group of dead soldiers quickly retreated into the city and retreated quickly. When the Chu army chased to the city gate drawbridge, thousands of arrows had already been fired on the city tower.

In this way, the Wu army adopted the strategy of attacking and defending, and often went out of the city to attack the Chu army, although Shen Yinshu sent troops to attack the city several times, but to no avail.

The weather is getting colder, and the middle of winter is approaching. Sun Wu never saw the arrival of reinforcements, so he sent an envoy to Gusu to ask King Wu for a countermeasure.

"The king of Chu sent Shen Yinshu as a general and led an army of 80,000 to attack Liu, Qianeryi, and our army went deep alone, and the logistics supply was difficult. If the state of Chu continues to send reinforcements and copy our back road, and our army has no backup troops, then our army is in danger! The minister thought that if the Yue country could not send troops to help, then our army could withdraw its troops and return to the Wu realm, and ask the king to decide. "Sun Wu has the meaning of returning to the class teacher in the report to He Lu.

King Wu knew that Yue Guo did not want to help him, so he had to tell the truth and let Sun Wu decide for himself.

Shen Yinshu saw that the attack suffered heavy casualties, so he only besieged but did not attack, cutting off the logistics and grain routes of the Wu army, hoping that when the Wu soldiers were short of food and water, they would be in chaos.

But there was an unforeseen situation, the troops sent by Shen Yinshu to attack Liuyi were defeated by the soldiers, and the Chu army thought that Liuyi was a small city, and there were only 20,000 men and horses sent to attack, and the army followed Shen Yinshu to Qianyi. The 20,000 Chu army was attacked by the soldiers and Bo Ya, and I heard that the Chu army besieged Qianyi. The soldiers led a large group of men and horses to rescue Sun Wu.

When Shen Yinshu was sitting in the big tent, he gathered the generals to plan how to strictly prevent the Wu army from breaking through the camp, but a small colonel under the tent came to report: "The banner of the Wu army appeared after our army camp, it may be that the reinforcements of the Wu army have arrived." ”

Shen Yinshu was shocked, and urgently ordered the rear army to become the front army to intercept the Wu army that came to the rescue.

The Wu army in the city saw their own banner and knew that the soldiers were coming to the rescue. Sun Wu sent an order to the soldiers, opened the city gate, and rushed out in a burst. The Chu army was attacked by the enemy on its back and could not resist it, so it had to retreat.

Due to the heavy losses of the Chu army and the lack of absolute numerical superiority in troops, Shen Yinshu ordered to set up camp 30 miles outside Qianyi and confront the Wu army.

Sun Wu and his soldiers were still stationed in Liuyi and Qianyi, and they still ordered Zhuan Yi to lead his army to patrol between the two cities to protect the safety of the grain routes in China.

After that, the two armies held their own positions and did not attack each other, and the border gradually calmed down. The state of Chu has no intention of recovering these two cities, and everyone is safe and sound, maintaining the status quo.

Seeing that the border had subsided, King Wu ordered Zhuan Yi and Bo Yao to divide their troops and garrison them, and recruited Sun Wu and his soldiers to return to Gusu.

In the court hall of Wu, Sun Wu and Wu Yuan entered the hall to pay respects and explain the front-line battles. He Lu rewarded the merits of the two people, and each sealed 300 food estates.

"This time, although the two cities of Chu were pulled out, they could not take advantage of the situation to go south, and the widows were very unwilling." He Lu was a little angry about giving up halfway this time.

Sun Wu has always been opposed to this military operation, but it is difficult to disobey the king's order, so he has to obey. Seeing this opportunity, he admonished: "Chu is a big country, and it has always been stronger than my country in terms of strength, and this time the troops to attack Chu were very hurried, and they were not very well prepared strategically and logistically, so the effect was not very good." ”

King Wu disagreed: "The results of this battle are already good, destroying the two cities of Chu State. If the Vietnamese country can send troops to help, then we may be able to achieve greater results. It's just a pity, this Yue Guo is really looking for death! actually lost the widow at this time. This revenge has to be avenged! ”

"The minister thinks that the soldiers have been used for many years, and the people cannot rest and recuperate, and it is not suitable for the country; Moreover, although the Yue Kingdom did not follow the division to attack Chu, it did not take the opportunity to make trouble, and the king did not have to punish him too much. The minister watched the sky at night, the auspicious star was in Yue, and it was ominous. ”

He Lu was angry and disobeyed the order, so he did not listen to Sun Wu's words. But he asked the soldiers in the hall, "What does the gentleman think?" ”

Although the military advisor is right, the reluctance of the Yue State to send troops to attack Chu this time is a speculative move. Yue Wang Yunchang didn't want to be an enemy of Chu, so he stood on the side of Chu. This Yue Kingdom has been between Wu and Chu on both sides, like the grass of the city wall, there is no absolute position, the minister agreed with the king's opinion, and took this opportunity to ask the Yue State for guilt. ”

Seeing that the soldiers had the same idea as himself, he ordered the soldiers to lead the army to attack the Yue Kingdom, but drew up a plan: just teach a little lesson, attack the border cities of the Yue Kingdom, do not go deep into the interior of the Yue Kingdom, and just do a small punishment.

Wu Yuan received the order, led an army of 20,000, and in the early summer of the fifth year of Helu (that is, 510 BC), he first went to Huzhou, an important border town, to gather military horses and prepare to attack Vietnam.

However, the king of Yue, Yunchang, learned of Wu's proposal to attack Yue, so he sent a doctor Gu Baa as an envoy, with 12 beauties of the Yue country and 100 cars of gold silk and property, to Gusu to pay homage to King Wu and ask for pardon.

Although the king of Wu accepted all the tributes from the Yue Kingdom, there was still a huge Wu army in the border city of the Yue Kingdom, which was the 20,000 Wu soldiers under the command of Wu Yuan.

The garrison general of Orange Prefecture was not prepared to respond to the enemy at all, nor did he get any instructions from the King of Yue, and it is no wonder that even the King of Yue thought that He Lu would naturally not send troops to attack after receiving tribute, so Orange Prefecture was taken by the Wu army without any resistance.

The capital of Yueguo is not far from the border, and it is very close to the direction of Wujing, only more than 100 miles away. Hearing that the barrier of the capital, Orange State, was taken by the Wu army without a single soldier, the court of the Yue Kingdom was shaken. The king of Yue immediately arranged the defense in front of the city of Huiji, and transferred the soldiers from all over the country to the king of Huijiqin.

On the front line of Huiji, the Yue Kingdom began to establish an arc-shaped defense system. Although he was preparing to fight to protect his homeland, Yun Chang also used the other hand, sending envoys to Gusu, up to King Wu, and down to the homes of all the ministers, sending generous gifts one by one to carry out a diplomatic offensive, hoping that the ministers could intercede and persuade King Wu to withdraw his troops.

The 20,000 Wu troops led by the Wu soldiers brushed the defense line of Huiji, but they only looted everywhere in Orange State, and the official treasury and rich homes were all looted by the Wu army.

The king of Yue was furious, and ordered the general Ji Ying to lead 20,000 Yue soldiers to retreat to Orange State.

The soldiers found out that the king of Yue sent troops to meet the enemy, and they did not panic, loaded the looted property, and retreated all the way to the border of Wu.

When the king of Yue saw that the Wu soldiers had retreated, he no longer dwelled on this matter, and Wu and Yue did not invade each other for the time being, and each kept peace.