In Jinyang City, Guo Jia held a combat meeting as soon as possible, and formulated corresponding countermeasures in the situation in various places, leaving 30,000 troops to station in Jinyang to make a move, sending 10,000 more troops to Taishi Ci. Tian Chou brought 10,000 troops to reinforce Li Yang, while Guo Jia led Pang De, Wei Yan, and Beikeham to lead 30,000 troops to reinforce Guandu, of which 10,000 were foreign legions.

In Guandu, Cao Cao personally led twenty troops to fight.

After Cao Cao's army set up camp, he brought Xun You, Cheng Yu and other strategists to the outskirts of Guandu for reconnaissance. After Cao Cao saw it, he realized that Guandu was really not easy to attack. The city wall was as high as 12 meters, all made of cement and stone, which was very solid. It was a bit of a fool to break the city wall; there were countless arrow towers on the city wall; the city gates were all made of steel plates, and the moat was more than 20 meters wide and more than five meters deep.

Although Cao Cao heard that Guandu had a strong defense ability and was not easy to break. However, after an on-site inspection, Cao Cao realized that it was more difficult to break Guandu than expected. But now the arrow is on the string, and it is not enough not to attack. The entire army has reached Guandu, so it is impossible to attack. Fortunately, Guandu has 10,000 troops, so it can only be consumed.

Cao Cao said: "Lu Ning is really willing to spend money. Since this Guandu is built so strong and durable, isn't it easy to break?"

Xun You said: "Lord, such a tall city wall is more than twice as high as the Chang'an city wall. And the moat is too difficult to break. It seems that there is no hope for a strong attack. Liu is considering how to attack."

Cheng Yu said: "Lord, Li Yang is also a tall and thick city wall, and the Yellow River is also natural and dangerous, so it is even more difficult. There are thousands of soldiers there; I heard that Xingyang City is the same, and it is not easy to attack. If you want to invade Lu Ning's jurisdiction, you can only attack."

When Hao Zhao heard that Cao's army was going to the suburbs of the city to observe, he also ran to the city wall and observed it with a glasses. It was Cao Cao and his party. There was a slight smile on the corner of his mouth. This was the burial place of your old Cao army. If you want to break through, don't dream.

What Cao Cao didn't know was that there were countless mechanism traps within five hundred steps in front of Guandu City Gate. Just cleaning these mechanism traps would have to pay a huge price. There was also the moat more than 20 meters wide, which was even more a place of death.

Guandu has always been the place where Lu Ning’s key defense, and it is also the focus of Cao Cao’s defense. This is a very important military location. However, during the battle between Lu Cao, Lu Ning sent troops to steal it from Lu Bu. At that time, although Cao Cao knew that Guandu was very important, he had no choice but to watch Lu Ning seize Guandu. After all, Lu Ning did not get Guandu from Cao Cao, but obtained it from Lu Bu. Cao Cao had no choice but to suffer a loss.

After Lu Ning seized Guandu, he immediately carried out comprehensive construction of Guandu. Not only was it a urn city, but he also had very strong defense capabilities. He also knew that Cao Cao would attack Guandu one day, so he focused on it during the construction and spent a lot of effort to build it.

The guard of Guandu was Hao Zhao. Although he was not old and very young, his ability was not easy to question after graduating from Jinyang Military Academy. Especially in history, Hao Zhao was originally a master of guards. During Zhuge Liang's second northern expedition, he led a hundred thousand troops to attack Chen Cang; Hao Zhao led 3,000 Wei troops to station Chen Cang, blocking the 100,000 Shu troops led by Zhuge Liang.

Zhuge Liang sent Hao Zhao's fellow villager Jin Xiu to surrender Hao Zhao, but was sternly rejected by Hao Zhao. Later, although Zhuge Liang used a series of siege methods such as ladders, rushing cars, piled up soil, and digging ground, they were all resolved by Hao Zhao one by one. Zhuge Liang, who was using troops as a god, was helpless to Hao Zhao. Hao Zhao's persistence in Chen Cang directly led to the failure of the second northern expedition of Shu Kingdom. If Hao Zhao had not died of illness later, Zhuge Liang might have been unable to capture the small Chen Cang City forever.

Nowadays, Guandu has its defensive ability that Chen Cang cannot compare with, and its defensive firepower is even more incomparable. Therefore, Lu Ning only used 10,000 or 10,000 troops to station Guandu, and never worried about Guandu's defensive problem.

After Cao Cao returned to the central army's tent, he immediately held a meeting to study the attack on Guandu.

Cao Cao said: "Everyone has also seen that this Guandu is very different from the original one. Its defense ability is very strong. I would like to say what good ways to break Guandu."

There was no one to speak out. This was the only way for Cao Lu to invade the jurisdiction of Lu Ning. Although it could be attacked from Xuyang, it was even more difficult there. Not only was there a solid city wall, but the Yellow River natural danger. If you want to attack, the losses would be very large. Moreover, it was a plain battle, which was even more unfavorable to the Cao army's combat. Everyone knew in their hearts that the Lu Ning army's iron cavalry was powerful, and Cao Cao did not have many cavalry. After years of development, although he had purchased nearly 10,000 war horses from Lu Ning, they were all eliminated by Lu Ning's army. Only Lu Bu's 30,000 Bingzhou iron cavalry can be regarded as elite iron cavalry.

Lao Cao looked at Xun You in the city and county. Xun You didn’t want to chew on the sound, but can you not say it now?

Xun You said: "Lord, Guandu's wall is tall and thick, and it is indeed not easy to attack; especially since we don't know the firepower situation on the wall, we have to figure it out first."

Cheng Yu said: "Lord, let's attack tentatively tomorrow and understand Hao Zhao's firepower situation so that we can formulate subsequent attack strategies; Guandu is a urn city, and we don't know what the defense ability is there, but the secret agent says it is a urn city."

Cao Cao said: "For many years, our spies only knew that Guandu was a urn, but they didn't know what was going on the city wall. No one had ever been allowed to go up there, let alone the specific situation. Lu Ning paid great attention to this and attached great importance to it, even the soldiers did not say anything."

Xu You said: "Lord, didn't Ziyang create a Pili car? Is there anything that can't capture Guandu City?"

Liu Ye smiled bitterly and said, "Lord, our thunderbolt car can take more than a hundred steps at most, while the Guandu city wall is more than ten meters high and the moat is more than twenty meters wide. It is not easy to attack the city wall? Unless the thunderbolt car is carried to the front, once Hao Zhao sends a large army to destroy the thunderbolt car, we cannot defend and it is easy to be destroyed by Hao Zhao."

The thunderbolt cart that Liu Ye made was also a catapult cart without wheels and could not move, so it could only be lifted up by someone. Once the other party came to destroy it, there would be a large army to guard it, otherwise what should I do!

Xiahou Dun said: "It is best to attract Hao Zhao out of the city, so that he can have hope of taking Guandu. How can he attack such a high city wall? That requires a large number of soldiers to fill the pit."

Xu You said: "The most powerful thing about Lu Ning's army is the cavalry. Going out of the city to fight is the only way. You can only consume Hao Zhao's troops first, so that the defense when siege will be affected; but will Hao Zhao leave the city?"

Cao Cao thought for a while and said, "Be ready for all the siege equipment, it is better to attack tentatively first and understand the defense ability first."
Chapter completed!