Cao Cao joins Xu Chu.

The two of them counted the results of the battle for a while, and today's battle looked very fierce, but the number of soldiers killed on both sides was less than five hundred. This is the case with wars in the era of cold weapons, sometimes tens of thousands of people die in a day, and sometimes there are only a few survivors in a war of a few thousand people.

In the military tent, Xu Chu sat on the seat and instructed Xin Bi to write down the merits of the generals, so that he could be rewarded for his merits in the future. Guan Yu and Zhang Fei fought against Lu Bu and killed the cavalry general Wei Yue, which was the first achievement; Dian Wei is second, Cao Chun, Yuzhou Army General Xie Chong, Zhai Rong, etc. have made contributions, again; The rest, such as Xiahou Yuan, Li Quan, and so on, were also credited.

There are many generals who have hung colors, and some of the injuries are not light, such as Li Quan, who met Hou Cheng in the battle, Hou Cheng's martial arts are not under Li Meng, and Li Cheng's old injuries have not fully recovered as before, so he was hit by a spear in the left shoulder, and he didn't feel how to do it when he fought fiercely, but after the war, it was almost difficult to walk on his own, and he was carried to the medical team to let Fan Ah treat his injuries, and he didn't even participate in the military discussion.

All the soldiers who have minor injuries will be treated and wrapped by the military ulcer doctors, and all the seriously injured will be sent to the medical team. At this time, the value of Fan A, Qin Chang and others was highlighted, and even some of the soldiers who carried the wounded soldiers over had seen Fan A's miraculous medical skills, and when they went back, they showed off what they had seen and heard to their comrades in the army, and praised Fan A as an immortal who could 'live and die, flesh and bones'. Most of the reasons for the soldiers to fight were not for the righteousness of the family and the country, but for the sake of food and survival, and there were 'miracle doctors' in the army who could save those who could not be saved in the past, and their hearts that were uneasy in the face of war suddenly settled down a lot.

Back to the war.

Cao Cao and Xu Chu didn't want to give Lu Bu a chance to breathe, and wanted to take advantage of the victory to break through, on the one hand, Lu Bu's army was now demoralized, on the other hand, the cavalry had no advantage in the battle to defend the pass, and what Lu Bu could rely on was the more than 1,000 Dong army foot soldiers in Dagu Pass. As for the state army, where is he willing to use it to defend the city, besides, the pass is so big, and the defense of more than 1,000 defenders is more than enough.

This is Xu Chu's first attack, and to be honest, he is a little at a loss.

Compared with Cao Cao, Guo Jia, Xi Zhong and others, Xu Chu is obviously very 'unlearned', but he has an advantage, that is, he dares to ask questions without shame, above the military discussion, the two armies are both civil and military, Xu Chu said to Cao Cao: "I have never led my troops to attack the city, how to fight this battle, and please teach me Brother Meng De." ”

Cao Cao smiled: "Zhong Kang is modest. He glanced at Guo Jia and said, "Guo Fengxiao is talented, please speak first." ”

Guo Jia didn't squirm, and after signaling to everyone, he said loudly: "Only by knowing yourself and knowing your opponent can you be defeated in a hundred battles." If you want to beat the level, you need to know how the enemy will defend it. ”

Everyone was attracted by Guo Jia's words, and they all listened attentively, and Xu Chu listened very carefully.

Guo Jia said that he had taken a rough look at the situation near Dagu Pass and came to the conclusion that either Lu Bu was too light on the enemy, or he didn't know how to defend at all. Perhaps because Lu Bu couldn't think that Cao Cao and Xu Chu would be able to attack the pass, the forests outside the pass were not cut down and many were left, which provided him with raw materials for building watchtowers, ladders and other key research facilities, which was very unwise - in fact, this could not be all thanks to Lu Bu, how could he think that Xu Rong and Hu Zhen had not sent troops to reinforce Dagu until now.

This means that as the battle progresses, the advantage of Dong Jun's 'condescending' guarding the pass will slowly disappear, so there are roughly two ways for Lu Bu to rely on guarding the pass: one is that the Dong army's bow and crossbow are strong, and there are many reserves of hot oil, wood, stones and other things on the pass, which can be relied on to guard the pass; Another is to use small groups of cavalry to raid the pass from time to time, affecting the siege rhythm of our army.

The two things listed by Guo Jia can be said to be the two most effective means that Lu Bu can think of at the moment, and they are also conventional methods. As for how to deal with it, Cao Cao said: "Step by step, just build the soil into a mound." ”

Although there are only a few words, some generals and colonels who are familiar with military books in the account can understand it.

On the one hand, it is constantly putting pressure on the defenders on the pass, and on the other hand, it is strengthening its own defenses. Of course, the pressure is to rely on the soldiers to fight bravely, erect cloud ladders and keep climbing, and the strong defense is to dig a trench outside the Dagu Pass, the trench can effectively prevent the harassment of Lu Qi, and the excavated soil can gradually build into a mound, and then build a watchtower on top of the mound, and send Zhang Shi to climb the tower to shoot arrows. In addition, if the battle drags on and the mound becomes higher and higher, Xu Chu and Cao Cao can even look forward to the scene of attacking the pass directly through the mound.

Guo Jia and Cao Cao's suggestions were both highly technical, and Xu Chu asked afterwards that the methods of the two were both learned from the city guards of "Mozi".

During the Warring States Period, the children of the Mo family were often able to help some small countries resist the aggression of large countries, and a large part of it relied on their unique views on defending the city.

How to fight Dagu Pass, the general direction of the military discussion has been set, according to what Cao Cao and Guo Jia said, they are obviously ready to fight a protracted war, because until now Xu Chu and Cao Cao don't know when Hu Zhen and Xu Rong will come to reinforce Dagu, or whether there will be reinforcements in Luoyang.

Just before the officers and men of the three armies had eaten and recuperated enough energy to prepare for tackling the key problems, news came from the Yique Pass, so the attack was suspended, and everyone read the military newspaper together.

The battle was extremely tragic, Cao Ren and Cao Hong's troops were almost lost, Cao Ren and Cao Hong's two main generals were wounded, but because of the support of Gan Ning and Wang Yan's troops, although the battalion was crumbling, it was not lost in the end. According to the military newspaper, it can hold on for another three days.

It is worth noting that Xu Rong and Hu Zhen's performances were very different, Xu Rong attacked fiercely, Hu Zhen slack, and did not notice that Xu and Hu had any signs of reinforcements at Dagu Pass.

Xu Chu and Cao Cao made a decision immediately, and immediately appointed Xiahou Yuan, Cao Chun, Li Tong, and Chen Gong to lead troops to help.

But they didn't know that in fact, at this time, whether it was Dong Jun in Yique Pass or Dagu Pass, the fighting spirit gradually disappeared.

Lü Bu retreated to Dagu Pass, and waited for Zhang Liao, who returned from Hu Zhen, but Hu Zhen pushed the enemy troops outside the pass to act rashly on the side, and was unwilling to send reinforcements to Dagu. His reason is also very sufficient: Ohtani is Xiongguan, you are all brave generals, even if Xu Chu Cao Cao comes to attack with all his might, it will not be a problem to defend for ten days and a half months, wait!

Zhang Liao was helpless and went to see Xu Rong again.

Xu Rong was willing to send reinforcements, but he was weak and had no extra troops to use, so he couldn't come.

Although Zhang Liao is still young, he is different from other generals in Bingzhou, he is a very wise person, and when he saw Xu Rong and Hu Zhen's reactions, he knew that Dagu Pass should not be able to hold it. Because he knew Lu Bu's mind very well, in the case that Hu Zhen had no intention of sending reinforcements quickly, Lu Bu would never let his army participate in the tragic battle to defend the city, and the result would inevitably be that Lu Bu and Hu Zhen had a disagreement again. Yique and Otani are dependent on each other, and the two masters will not deal with each other, how can this battle be fought? It was only a matter of time before Luoyang retreated.