With the continuous progress of chaos and counter-promotion on the front battlefield, the Han army has invested more and more troops on the front line.

Finally, even Liu Bei, Zhuge Liang, Lu Su, and Ju Su came to the front five hundred steps in front of the defense line and found a tower to observe the enemy situation. Naturally, there were tens of thousands of personal guards guarding the phalanx next to it.

Anyway, Liu Bei invested more than 100,000 troops in the Ru-Li defense line, and half of them were deployed on the wide front that could extend to the two nearby counties and set up strong villages continuously. Today's counterattack could not use 100,000 people, and the reserve team was very sufficient.

After Liu Bei observed the frontal fight, he couldn't help discussing with Zhuge Liang:

"The Cao army actually dared to launch a sneak attack and counterattack under such circumstances, hoping to annihilate our engineer troops. This is a god-given opportunity. If we do not take the opportunity to counterattack and completely break through the Ru-Li defense line of Cao's army, then we would be too sorry for the desperate battle between the old general Huang and General Gao Shun and Captain Chen."

Zhuge Liang: "Your Majesty has seen so much. I have just taken the opportunity to analyze that Cao Cao suffered such a defeat, and after all, he underestimated the enemy.

First, they were not sure how explosive combat power the hundreds of patrol armored cavalry led by General Huang had after changing the new horse armor equipped with our army, and whether it was enough to rush to support the main reinforcements.

Secondly, they also underestimated the fighting will of our elite engineers. Looking at Le Jin's tactic just now, they were completely the same idea that "as long as the cavalry surrounded the infantry in depth, the infantry would collapse without fighting and then be able to chase and kill."

As long as Captain Chen resisted his fear and allowed the soldiers to show their trench warfare and defense ethics that they had practiced normally, and were not afraid of being crossed by the cavalry, Le Jin would actually be unable to succeed.

Our army's current counterattack is just to take advantage of the two weaknesses of Cao's army, and we should have won this victory."

Zhuge Liang's comments were very pertinent, and they could also hit the enemy's fault. The biggest mistake in Cao's decision to fight today's counterattack was to underestimate the fighting will of the Han army engineers.

In any era, it is rare for infantry to still be able to persist in the trench after the tank is driven overhead.

Chen Dao's engineers can do this, which is inseparable from the three-year canal project period when Zhuge Liang repeatedly emphasized discipline, strict military discipline enforcement, and repeated technical and tactical practices for the application of trenches, allowing soldiers to simulate confrontation training courage and increase soldiers' common sense.

After all, time is off the court.

Zhuge Liang is the most famous general in the world who is good at using easy-to-understand and easy-to-understand training methods to enable ordinary soldiers to master technical and tactical knowledge.

At the beginning, he wanted the engineers to realize that the cavalry could not cut down the soldiers squatting in the trench against the walls, and they used the most intuitive experimental methods.

Anyone who has seen modern army training knows that it is like training soldiers to endure fear of blasting. The most effective method is to quantitatively analyze, calculate the length of the fuse, let the soldiers pass the explosives themselves, and then count enough time to throw them into the middle pit, and everyone falls to the outside.

Zhuge Liang was practicing engineers and asked someone to squat in the trench and stick to the wall, allowing his cavalry to ride on the edge of the trench and chop down with real swords and guns. He found that the trench was too deep and it was really out of reach.

After the actual test, the soldiers knew that they could not cut the ground, so they were really not afraid. Practicing the truth is much more effective than relying on military discipline to force soldiers not to be afraid.

To put it in a modern psychology term, this is to let soldiers spontaneously understand the boundaries of their abilities, thus creating self-motivation that is not afraid of being afraid of course Zhuge Liang does not know these terms, and these terms have not appeared yet, but Zhuge Liang can actually apply them.

Moreover, this practical training method does not require soldiers to be literate, and can be practiced even if they are illiterate. It is very down-to-earth, which is also in line with Zhuge Liang's usual style.

For example, there were many critics of Zhuge Liang's military talent who had "responsive to changes" in later generations. One point they often criticized was that "Zhuge Liang did not have so many military achievements, and many of them were picking up wisdom."

The most important evidence is that the story of Zhuge Liang's invention of the "Eight Formation Map" in "The Romance of the Three Kingdoms" is actually not very awesome. His predecessors already had something similar to the Eight Formation.

But little do you know that having the "Eight Formations" and "Eight Formations" are completely different. The description of the textual military book is for educated generals to read.

Even if Zhuge Liang just carried out a "grounded gasification transformation", accompanied by the picture and gave a popular explanation, so that ordinary illiterate can practice with it, that would be a very amazing creation.

At this moment, he trained the Han army engineers in a popular way for several years, and then Chen Daozong was calm and composed in actual combat. It can be said that all the results of the battle were worthy of Zhuge Liang.

No general of the Cao army opposite can train so down-to-earth, and it is even more impossible for illiterate soldiers to master complex technology cooperation.

...

After watching the battle for a long time, Liu Bei and Zhuge Liang also understood the opportunity of victory and defeat thoroughly.

However, after all, there is still bloody battle ahead, and the fighter planes are changing rapidly, and it is not time to summarize the experience of victory.

After supervising the battle for a while, Liu Bei quickly noticed a problem, that is, the longitudinal corridors deployed by Guo Jia on the opposite side that connected various defense lines did indeed play a considerable role in "reducing the long-range firepower in the z-type trenches of the Han army to the killing effect of the Cao army reserve team."

Han army's god-arm crossbowmen shot rows at the deep areas behind the melee blocking positions on the defense line, but the reserve teams that Cao's subsequently deployed were hiding in the corridor, so crossbows were useless.

Liu Bei quickly asked: "Do you have a good plan to break the protection of the Cao army's corridor? Our army has built the Hokkien building for many days. You should have observed changes in the deployment of Cao army? Haven't you ever thought about responding?"

Zhuge Liang carefully observed for a while, confirmed the actual situation ahead, and then put down the telescope: "I also had some ideas, but I didn't know how much I needed to deal with it before the actual test.

Now that I have seen the actual protective effect of the corridor built by Guo Jia, I think I have some way to deal with it.”

Liu Bei: "Then why don't you say it quickly. I will let the former army deploy according to the law."

Zhuge Liang pointed to Guo Jiaxiu's corridor and said, "Our army's god-arm crossbowmen not only shoot ordinary arrows, but also use rockets. Now, looking down at the battlefield, the rockets shoot to the top of the corridor and it doesn't burn at all.

It can be seen that the tops of these corridors were made of mud with branches. Because time was too hasty, Guo Jia could not have built another tight beam and top rafters. He could only set up trees and branches horizontally and then fill the joints with mud.

Guo Jia obviously imitated the trench of our army and followed the same example, but he did not learn the essence and did not understand the principles of mathematical science in each detail. The trench dug by the minister was tortuously move forward in order to prevent the enemy's walls from shooting flat in the direction of the trench, and the hit rate was too high.

After digging into twists and turns, the trench will never face the crossbowman on the guard wall at any time. The arrows of the defending crossbowman will naturally shoot on the side wall of the trench.

Now Guo Jia cuts corners. I guess on the one hand, he doesn't know the necessity of twists and turns, and on the other hand, it may be that he thinks he is the defensive side in order to be quick and easy, so he doesn't have to worry about the attacking side shooting horizontally towards the direction of the extension of the trench from a high point. Moreover, he feels that he has repaired a simple top and is not afraid of shooting, so he does this.

I think our army also brought some chariots and a small number of camel caravans in this battle, which could imitate the tactics of the light trench train array on vehicles.

In this case, you can carefully observe the direction of the enemy corridor from the Wangstou, and then deploy the chariot carrying light trenchers to the front of the array facing the extension direction of the corridor, and then shoot with all force at a predetermined angle.

Compared with crossbows, the biggest disadvantage of catapults in terms of accuracy is that they are difficult to control far and near because their ballistics are too high to throw. However, they are easy to aim in the left and right directions.

If it is directly opposite the direction of the corridor extension and adjust the left and right, it will always hit the corridor, whether it is remote or near. The tops of the branches and mud of Guo Jiaxiu can only prevent arrows and gravel falling from the sky."

Zhuge Liang's later explanation is actually a bit redundant. It is not that he said it was wrong, but that Liu Bei did not understand mathematics and did not have common sense in geometry, so he could not understand it.

But Liu Bei knew people and was good at placing them. As long as he knew that the truth that Zhuge Liang said seemed very powerful, he could use people decisively and follow his arrangements.

"According to your words, let all our army's tanks be arranged and deployed by you!"

Liu Bei's army was also quite experienced in using vehicle arrays and high-mobile mobile catapults. As early as the Battle of Pingliang several years ago, Ma Chao had studied light maneuvered catapults. At that time, Li Su and Guan Yu were responsible for Pingliang as the head coach, and Ma Chao was just a thug.

In the environment of many camels in the Western Regions, Li Su also simulated the "pop Xijun" model of later Western Xia. He tried to transport a small torsion catapult to throw some stone bullets the size of a fist. After arriving in the Central Plains, it was easy to think of changing the camels to a car.

The chariots at the end of the Han Dynasty were developing from traditional rushing weapons toward long-range firepower vehicles and mobile covers. In history, Zhuge Liang's eight formation maps also used side vans to provide cover and vehicles to facilitate formation on the plains to break the cavalry by step. Zhuge Liang had the talent in this area, so everything was naturally natural.

With Liu Bei's order, the chariot equipped with a light trencher quickly began to deploy as he did his arm and fingers.

Moreover, with the feedback and guidance of the telescope lookout hand on the upper floor, the position was accurately selected and the shooting direction was determined.

The Cao army on the opposite side did not realize what the rolling smoke and dust behind the Han army formation and the maneuvering of the chariot formation meant on the battlefield where tens of thousands of people fought to the death.

Because of the incomplete defense line and long walls, the Cao army did not even pay much attention to the Han army's cavalry and chariots. They all knew that cavalry and chariots could not rush directly into the narrow gap in the earth wall, and that would only be stinged by thousands of spears for nothing.

This contempt and negligence allowed Zhuge Liang to easily complete all the arrangements to change the array.

After several calibrations, the light catapult on the vehicle rushed to a mere fifty steps in front of the long wall, and then, without any vision, began to shoot blindly according to the direction indicated by the lookout hand and the flag soldiers through the wall.

Due to the subtle differences in torque and elevation angles of the projectile, countless gravel rains shot out by the Han army's catapulted chariots crossed the defense line and spread in a longitudinal ellipse, landing on the corridor thrown by the Cao army reserve team in the rear.

The gravel is far and near, and this mobile shooting platform is not very stable, and the gravel thrown each time is not of the same weight, so the error is quite large.

A light stone will fly far, and a heavy one will fly close. The error of distance and near can be more than fifty steps, and the most exaggerated one will have an error of nearly a hundred steps.

There is nothing to do about this. After all, the requirements for gravel bombs are low, so it is easy to find enough sources of ammunition at a cheap price, sacrificing quantity for quality, and improving fire density and sustainability.

Only those single-headed bullets that are dozens of kilograms each can be polished relatively accurately to ensure a uniform range, crush the stone material, and make the stone bullets into the same size and weight of each one.

However, at this time, on the battlefield of the Yancheng defense line, under the environment of Zhuge Liang's subtle secrets to play to his strengths and avoid his weaknesses, the advantages of the light-weight motorized trench machine and gravel rain were all avoided.

No matter how far or near the stones are thrown, they always fall into the various parts of Guo Jiaxiu's corridor. If the angle is found correctly, the distance is not important at all.

Guo Jia learned to dig traffic trenches by Zhuge Liang, but learned a half-baked job. He didn't know that he wanted to dig traffic trenches into twists and turns. The disadvantages of this technical weakness were completely revealed at this moment.
Chapter completed!