Xun Yu said worriedly: "If Lu Ning really creates any new weaponry and equipment for siege the city wall, then any solid city wall will be decorated in the future for the Big Bear Army and will not have any defensive effect. This weapon is too terrible."

Cao Cao thought for a while and finally said, "Since we don't know what the reason was to attack the city wall and collapse, let our army's secret agents in Lu Ning's jurisdiction find a way to figure out whether Lu Ning has such new weapons and equipment? This situation is very important, and we must understand it at all costs."

Xiahou Yuan thought for a while and said, "Lord, there is another situation. After Taishici's army captured Xingyang City, they immediately asked the prisoners to build the city. The project volume was huge. It was probably to prepare for our army's attack."

Xun You heard this: "The Big Bear Army will not use troops in our jurisdiction for the time being, otherwise he would not have had to build powerful fortifications in Xingyang City."

Xun You's words made Cao Cao happy after hearing this. Although he was teased by Lu Ning's army during this period and threw Sizhou away, Sizhou is indeed a deserted place, not much population, and his own losses were not too great, and he did not hurt himself.

Cao Cao said happily: "Since Lu Ning will not attack our army for the time being, then we should not mess with him for the time being. What should we do next for our army? Where should we use troops?"

Xun Yu said: "Lord, our army now has a certain reserve of food and grass, and can also support the army's grain for months of conquest and attack. You can consider using troops in other places."

Cheng Yu said: "Lord, the target of our army is Xuzhou, so it is better to have Xuzhou in the pocket. This will not only expand the jurisdiction, but also obtain Xuzhou's food and grass, and enhance the strength of our army."

Xu You said: "Lord, if you want to attack Xuzhou, you must first deal with Liu Bei from Xiaopei. Otherwise, once Liu Bei and Lu Bu from Xuzhou join forces, our army will not be able to deal with it."

Xun Yu said: "Lu Bu is not scary, but Liu Bei and him joined forces to do something bad for our army. We still have to find a way to distract from their relationship, so that our army can eliminate them one by one."

After hearing this, Cao Cao said, "Wenruo, what strategy do you have to alienate Lu Bu and Liu Bei again?"

Xun Yu replied: "My lord, the key is to make a fuss about Yuan Shu. After all, Yuan Shu and Liu Bei are separated. It is just that Lu Bu is sitting in the middle. Yuan Shu dare not attack Liu Bei easily, otherwise he would have sent troops to attack Liu Bei long ago. But if we use Yuan Shu now, the effect will not be too good. Yuan Shu is afraid of Lu Bu's bravery. It is better to let someone go to Xuzhou to spread Liu Bei recruiting soldiers and horses in Xiaopei, intending to regain Xuzhou. In this way, Lu Bu will definitely be fooled. He allows Liu Bei to be powerful, which will threaten his safety in Xuzhou. As long as Lu Bu is suspicious, he will definitely use troops against Liu Bei. At the same time, our army will send people to Xiaopei to spread the rumors that Lu Bu will deal with Liu Bei. In order to protect himself, Liu Bei will definitely be like recruiting soldiers and horses to deal with Lu Bu's attack. As long as Lu Bu and Liu Bei turn against each other, our army will have the opportunity."

A few days later, Cao Cao received reports from various places of horse exploration, saying that all the towns and garrisons in Lu Ning were lowered at half-masts, and even the deeper situation was impossible to find out. Old Cao could not understand what Lu Ning was doing, so he had to summon his civil and military officials to the official residence to discuss and study what was going on.

After hearing the introduction, the civil and military officials under Cao Cao were puzzled. They didn't know what Lu Ning was doing, and they didn't know what he meant. Of course, lowering the flag was a ceremony in later generations. Ancient people would have known the meaning of it. No matter how high the IQ of Lao Cao and his men were, they would not be able to think of it.

Cao Cao said: "Wenruo, Gongda, you both have been to Bingzhou. Have you heard of what it means to lower the half-staff? Is it a signal that this kid is planning to attack?"

Xun You said: "Lord, I have never heard of such things in Jinyang, and I don't know what it means."

Xun Yu said: "Lord, although I have never heard of it in Jinyang, lowering the flag at half-mast should be a bad thing, otherwise how could it be lowered half-mast! If the army encounters a battle flag being broken by a strong wind before the army goes to war, it is a sign of great danger. There will be no fate and no need to lower the flag at half-mast, which is an unlucky move. Maybe it is a new name created by Lu Ning, which is just a ritual, but we don't know what it means."

Dong Zhao said: "Lord, I agree with Wen Ruo's statement that a bad thing should have happened when the flag of the half-mast is lowered. No army's battle flag will do this. Maybe it's really a new trick created by that boy Lu Ning. This boy will think of something messy all day long, which makes you unable to understand and imagine."

Cao Cao sighed and said, "Yes, this kid Lu Ning, don't think he doesn't do serious business, but what he did is shocking. He can't understand what he is thinking at all. He always likes to make some weird things. His whimsical ideas are sometimes really confusing. For example, what dogs pull carts or snow fighting in his early years set an unprecedented precedent for war. And his ideas that violate customs, common sense, and traditional things really make him successful. You have to look at him with admiration. Not to mention how he came up with such methods, it's really confusing."

A few days later, the secret spies stationed by Cao Cao in various places sent back information and also clarified the situation.

After hearing this, Xun You said, "Zhao Yun took Yongzhou into Lu Ning's bag, so his defense system would be better to be deployed. This is unfavorable news and is not good for the princes in the world."

Cheng Yu said: "Ma Chao killed Li You, the general under Lu Ning, and the Xiliang general will be conquered by the Big Bear Army soon. Ma Teng really won't deserve the loss. He lost 100,000 elite troops and offended Big Bear. I really don't know how he will resist the Big Bear Army's attack in the future?"

Cao Cao said: "Yes, Li You was one of the earliest generals to follow Lu Ning, and his status was very important in Lu Ning's heart. It is not difficult to see from the funeral arranged by Lu Ning for Li You that the scene of this scale is even more grand than the emperor's return to heaven."

Xun Yu shook his head and said, "Lu Ning is really good at doing this. He asked the entire army to lower the flag at half-mast to mourn Li You. I have never heard of this ceremony before. It is also a new trick created by this kid."

Cheng Yu said: "Except for that boy Lu Ning who could think of such a ritual, who would do this? This boy is different in his work and often does something innovative and unconventional, which makes you unable to understand no matter how you think."

Xiahou Yuan said: "It is too easy for the Big Bear Army to attack the city. Why is it so difficult for our army to attack the city? It is true that the battle report of the Big Bear Army is done with no effort. What's going on?"

Cao Cao said: "It was said that the walls of Chang'an City were also collapsed by the thunder in the sky, and then Zhao Yun's army successfully captured Chang'an City. Our spy has not yet figured out the mystery."

Cao Hong said: "Why did the Big Bear Army make thunder when it attacks the city? Why didn't the Big Bear Army make thunder when it attacks the city? Why didn't the Big Bear beside us when it attacks the city? Why did God always make thunder when it hits the city wall? "

Cao Cao shook his head and said, "Don't worry, sooner or later, we can figure out what's going on. I really can't believe that Xianglei can often help the Big Bear Army. This must be an illusion. It's rare for Xianglei to break trees. I have heard of the principle that it can collapse the city wall."
Chapter completed!