Guo Jia was not surprised by his surprise, because in his eyes, Cao Zhang was a child, and children needed to learn, and there were many things they couldn't think of.

Shaking his head, Guo Jia explained to him carefully: "Ziwen, you have also been fighting with Lord Sikong for many years, do you know what is the most commonly used siege method in the siege of the city?" ”

"Surround but not fight, but this requires sufficient supplies from the rear." Cao Zhang's answer was crisp.

Guo Jia bowed: "Yes, this is the reason why I took the initiative to attack, if the other party surrounds and does not fight, and then build a double-layer high wall, you can attack, you can retreat, but what about us?" Attacking from the inside out, you need to penetrate two layers of defense, which makes it not known how many people will die, and ...... There may not be no third and fourth layers. Moreover, if that is the case, what should we do if our army runs out of food and grass? ”

"You're right, but the military divisions, they use light infantry as the front, followed by siege engines, obviously for a quick victory." Cao Zhang asked again, he was very humble.

Guo Jia shook his head, he didn't agree with this statement: "What if it's a fake that they deliberately made for us to see?" As you say, if they were really in a hurry to attack the city, they would definitely not put the siege equipment at the back of the team and not protect it, obviously they were deliberately trying to show us, so that there would be a miscalculation and stick to the city, of course, maybe this is the normal way for them to march, but I can't wait and test at the risk of defeat. ”

"I see, teachable."

Guo Jia nodded lightly, turned his head to look at him, his eyes were kind, full of sincerity: "Ziwen, since you asked me today, I might as well say one more thing, in fact, my subordinates are not over yet, in addition to Wen Ze, Jun Yi, and Man Cheng, I also arranged for two teams of archers to go out from the back door, they are mainly responsible for concealing themselves, and when necessary, no matter whether they advance or retreat, they can attack each other." ”

"Understood, there is nothing missing in the military, our army will win this battle!"

Guo Jia had already heard these words, his ears were calloused, he didn't care at all, on the contrary, he asked Cao Zhang a question: "Then let me ask you, it is also to attack the enemy, why do I want Wen Ze to lead the rangers out of the battle?" ”

The cavalry of the Han Dynasty is roughly divided into three types, namely heavy cavalry, light cavalry and ranger cavalry.

Among them, the rangers are divided into rangers and crossbow cavalry, the difference between these two types of cavalry is in the armament, the rangers are equipped with tripping horses, darts, flying spears, a bag of thistles, equipped with iron nets and ring-headed knives or iron-headed short-handled hammers, with arm shields.

The crossbow cavalry was equipped with a riding bow and a horseman, with thirty-six arrows, and nine each with armor-piercing, a sentry, a three-cluster, and a heavy swallow arrow.

Cao Zhang thought for a while and said: "In comparison, the control ability of the rangers is better, although General Wen Ze is mainly responsible for containing the front army of the enemy's two camps, but he has to join forces with Uncle Zilian in the back, because if you have to face the heavy infantry, the combat effectiveness of the crossbow cavalry will be greatly reduced." ”

"Hmm......" Guo Jia shook his head with a deep groan: "As you say, I can completely let the bow and crossbow ride, launch rockets, and directly burn those heavy armors, isn't it?" ”

Cao Zhang couldn't answer now, he thought about it for a long time, but he still didn't have a reason: "Strategist, I don't know, you better talk about it." ”

Guo Jia smiled, looking at Yu Banbu who had already started a battle in the distance, his eyes became much deeper: "Actually, this is a layer of window paper, it's dark now, I can't prevent fire, so I can only let the rangers attack." ”

"Ahh I understand! Cao Zhang exclaimed when he heard this, and suddenly realized: "You don't want them to know that the siege engine has been burned, and when the time comes, they will only think that the rear army has been raided, and they will not be overly nervous, and they will join forces together!" ”

"That's right!"

Guo Jia saw that he had a breakthrough and came to the spirit: "Ziwen, in fact, commanding the army, not only must open and close, but also pay attention to details, it is possible that a very small detail can not be handled, it will lead to a loss, I just lied to Zixiao, his character is impatient, and he can't bear loneliness, now it's just the first battle, although our army will win, but we can't send all the generals out, right?" ”

Speaking of this, Guo Jia paused for a moment, and then stared at him tightly: "One more point, because it's a city defense battle, so I'm not very worried about you, you know?" ”

At this time, Cao Zhang's face flushed, but he knew that Guo Jia was right, and he knew best what his personality was.

According to Guo Jia's strategy, Yu Ban successfully attracted the attention of the second and third legions, and he used the characteristics of the rangers' mobility to spread the iron thistle terrestris, and used iron nets and other objects to harass and intercept, and successfully contained them.

And Li Dian and Zhang He's armies also fought from the left and right at this time, as for Cao Hong, he took advantage of the chaos launched by the three armies to secretly bypass the battlefield with the heavy cavalry and attack the heavy armored corps behind Guishan.

From the moment the battle started, Guo Jia was already winning.

As Cao Hong's heavy cavalry successfully raided the enemy formation, he personally released a rocket, and after Yu Ban saw it, he immediately led the rangers to withdraw from the battlefield.

Circle the rear of the 3rd and 4th Army Corps in case they want to turn back, and there will be no way to stop them.

Yu Ban led the cavalry to the vicinity of Cao Hongbu, but did not attack directly, seeing that the cavalry on their side was charging repeatedly, and the formation of the heavy armor corps gradually showed a tear, he gave an order and personally led the troops to attack from the flank with darts.

The heavy armored corps, which had been rushed to the ground by the heavy cavalry and was dizzy, was tossed by Yu Ban again, and suddenly the people's hearts were disheartened, and the last trace of battle spirit was shattered, and they lost their armor and retreated backwards in the blink of an eye.

And Cao Hong and Yu Banxin were like a spiritual rhino, and they did not choose to chase, but cut off and destroyed all the siege equipment they discarded.

In terms of the front line.

Although Li Dian and Zhang He each led their armies to successfully entangle the enemy, they were far apart in numbers, so they did not dare to storm and could only adopt the method of advancing in arrays to control the enemy within a certain range and prevent them from breaking free.

At the head of the city, Guo Jia and Cao Zhang were very happy to see the battle situation outside developing as expected, and at this moment, suddenly at the farthest point of the enemy formation, a number of fire arrows flew into the sky.

When Guo Jia saw it, he knew that it was Yu Ban and Cao Hong who had succeeded, so he couldn't help frowning, a treacherous smile appeared on the corner of his mouth, and he turned to Cao Zhang.

"Ziwen I know that you have been eager to try, now I will give you a chance, together with your uncle Zixiao, lead four thousand armor soldiers to help the battle, together with Zhang He and Li Dian, be sure to defeat one of the two legions, but it can only stop here, the rest of the people, including the defeated soldiers, must not chase, let alone fight, and strive to end the battle before dawn!"

Cao Zhang didn't think that he would have the opportunity to play, so he was extremely excited at the moment, and replied solemnly: "No! ”