In the wars of human civilization, the city wall has always played a very important role. Since the appearance of the city wall, www.biquge.info farming people finally have a sharp weapon for defense, but because of the restrictions of the city, they lack the mobility like the nomads.

Before gunpowder, guns, and even explosives, there was a lack of effective weapons to destroy strong fortifications, and there was no doubt that the defending side had the upper hand in the offensive and defensive battles of the city.

As long as there are sufficient reserves, including food, grass and troops, it is not too much of a problem to hold the first half of the year or a year.

Moreover, in siege warfare, because of the factor of the city wall, the casualty ratio of soldiers on both sides is generally maintained at 4 to 1 or 5 to 1, so if the besieging side does not have an absolute advantage in terms of troops, or has any reason to attack, it will not rashly exchange human lives for the city, because it is obviously a matter of killing 800 enemies and losing 3,000 themselves......

And if there is no siege equipment to assist, it is a thing that will make the besieging side desperate. Otherwise, for so many years, the nomads would not have been arrogant in the wilderness every time, and they would be numb when they encountered a siege.

Zhang Liao looked at the slowly retreating Zheng Lian's troops, although he was slightly relieved, but he was also more vigilant in his heart.

"Ziyuan retreated from the army with a word, it was really relieving!" Zhang Liao did not express the worry in his heart, but praised Fei Qiandao.

Fei Qian was not happy because of Zhang Liao's praise, shook his head, and said: "It is a fluke that you and I can win the level this time. This Zheng Zheng Zirong is not easy to deal with. ”

Zheng Qian tried to provoke Zhang Liao by scolding the formation, so that Zhang Liao gave up the advantage of the city wall to conduct positional warfare, and Fei Qian also used words to stimulate Zheng Liao, one was to improve the morale of his side, and the other was to attack Hangu Pass without any siege preparations when Zheng Yu lost his mind.

Although it has achieved a certain effect and improved his morale in this aspect, Zheng Yu did not let people attack the city because he was scolded by Fei Qian for a bloody sprinkler, but chose to endure the anger for a while and retreated, obviously to prepare some siege equipment and win the pass in one fell swoop.

It's a bit difficult to build a well, a cloud car, or something at once, but it's not too difficult to make some simple ladders out of trees, and it's not too difficult to crash into a car.

Therefore, it is not a very happy thing for Zheng Yi to retreat like this, because the next time Zheng Hui comes up to attack again, he must come with equipment, and a vicious battle is inevitable.

Although the western wall here was not destroyed by fire, there is a certain gap between the height and width of the eastern wall, and there is no corner tower that spits out to expand the striking surface like the Wangqitai and the Rooster Tower, and the length of the city wall is much longer than that of the east wall.

All these factors have made it more difficult for Zhang Liao and Fei Qian to defend.

In addition, there is a little more troublesome thing, the rolling stones used in defense are okay, and the wood and fire oil or something, under Fei Qian's own fire, it is basically equivalent to disappearing......

Zhang Liao was silent for a while, and said, "Ziyuan, I want to ask you for a favor and help me go to Luoyang to ask for some reinforcements......

Fei Qian was stunned for a moment, and reacted instantly, Zhang Liao said that he wanted reinforcements, maybe he had this need, but more importantly, he wanted Fei Qian to evacuate this dangerous place first.

Fei Qian arched his hand at Zhang Liao, expressed his gratitude, and said: "Wen Yuan has good intentions, but it is not my ability to retreat in the face of the enemy. Besides, it is also a pleasure to be able to fight side by side with Brother Wenyuan, can An miss it? Fei Qian deliberately said it in a very formal tone, just to show his persistence.

Zhang Liao looked at Fei Qian, a hint of a smile appeared on the corner of his mouth, then nodded, and said with a smile: "So let you and I fight hand in hand!" ”

"By the way," Fei Qian suddenly remembered something, and said, "Wen Yuan borrowed a soldier from you to use, I need to send Cai's book back to Gucheng first." ”

"Cai Fu Shujian?" Zhang Liao was a little puzzled.

Fei Qian spoke about it, Zhang Liao nodded again and again, and called Zhang Zhao.

Now that Zhang Zhao has been promoted to team leader, after listening to the task of escorting Cai Fu Shujian, he immediately said that Fei Qian and Zhang Liao would rest assured that they must be careful to protect the safety of Shujian, and then they and Huang Xu led the remaining ten guards of the Cui family, a soldier, and went out of the east gate with the newly repaired Shujian.

After removing the worries in his heart, Fei Qian wholeheartedly devoted himself to dealing with Zheng Yu's future offensive.

This time, the two sides played against each other, and it was basically equal. Zheng Yi has about 2,000 troops, and Zhang Liao here only has 800 foot soldiers, plus 500 auxiliaries, and the other 200 cavalry are majestic and majestic before, but the role of guarding the city wall is not very large, at most it can only be a cameo archer......

In other words, Zheng Yu's strength can basically be counted as twice that of Zhang Liao.

Another problem is the lack of tools for defending the city, such as rolling stones and wood, there is only a little kind of goods on the west city wall, and the east city wall has been burned by Fei Qian's fire......

Fortunately, I can take out some arrows when I go to the public treasury, otherwise the long-range strike ability is lacking, so what can I do with the twenty arrows per person brought by the two hundred cavalry?

There is also a potential threat, some of the troops left in the pass by Zheng have escaped from Hangu Pass, and a small number have been killed in the resistance, but there are still some soldiers who finally gave up and surrendered, and are now being detained in the school yard outside the southern city.

These soldiers have followed Zheng Wei for many years, if they learn about the situation that Zheng Hui fought back, they will inevitably have some thoughts, so they can't send these people to the city wall to defend the city at all, and they also need to send soldiers to guard against it, fortunately, this kind of thing can be done by auxiliary soldiers......

Even if Luoyang's reinforcements will come, it is estimated that they will not be so fast, and with such 800 foot soldiers and 200 dismounted cavalry on hand now, as for the auxiliary soldiers, this combat power really does not dare to compliment.

And it is not an easy task to hold such a small number of troops to hold the attack surface, which is much longer than the eastern city wall, and there are not enough long-range weapons of destruction.

So now he and Zhang Liao have some advantages in this aspect, but they are still limited.

Because even if Dong Zhuo and Li Ru are in Dadu, it is impossible for anyone to take the east and south roads freely at this juncture, so if they want to leave Luoyang, the only way to open up the road from west to Hedong must be frustrated this time.

Although the book of Caifu on his own side said that he was temporarily out of danger, he still had to defend the city, and he had to defend it!

Now the question is what can be done to expand the advantages of your side?