Li Mengxi once gave himself a self-evaluation that he felt that he had at least figured out how to defend the city wall.

Now, Li Mengxi and Guan Yu have learned how to advance and defend the city when defending the city, and how to counterattack when defending the city.

If only sticking to the city wall was the only way to defend the city, then now that Li Mengxi, who had learned the counterattack method, his city defense tactics were more flexible, and he was like a turtle shell with fangs growing on it, making it more threatening.

In the past, Li Mengxi could only defend the city wall. If the enemy attacked the city in the future, the enemy general's life would not be in danger. If he could not attack, he would just retreat.

Now, if the enemy generals attack the city guarded by Li Mengxi, their lives will be in danger. They send cavalry out of the city to charge and disrupt the enemy's siege rhythm. If there is a chance, why can't they sneak in behind the enemy troops and directly kill the enemy generals.

The enemy general's life is beginning to be in danger.

If you remain law-abiding, the enemy troops cannot attack the city, and retreat calmly. Although their military strength is reduced, they are still generally there.

With the counterattack method, the enemy troops attacking the city will no longer be calm and worry-free. Instead, if they are slightly negligent, they may be severely defeated.

Siege is also a very dangerous thing. Countless commanders died in siege battles. For example, Meng Ge who attacked Diaoyu City, and others.

This day, there were many harvests. After exploring the south gate, Li Mengxi was afraid that he would forget what he had just learned, so he couldn't wait to go back.

In the Chinese army commander's tent, Li Mengxi found a pile of cloth and piled it on a low table. He took out his pen and ink and immediately recorded all the knowledge he had learned.

In other words, what did you learn on this day when nothing major happened?

Li Mengxi bit the penholder and frowned in thought.

The first thing I did this morning seemed to be to go over and explore the details of the enemy city.

Li Mengxi remembered the specific details. He remembered that he was hung on a bamboo pole.

"The well is a tool for exploring the city. However, it takes a lot of work to make such a large tool. Sometimes time is tight. You can first build it with wooden beams and raise it to a height of three to two feet. Then you can find a long bamboo or pole and find a light person to tie it up.

on it.

If the height is three feet, and the bamboo can be five feet long, the total height will be eight feet, higher than the enemy's city, and we can approach the city to explore.

It takes three days to build the entire well, which is just a wooden frame of one to three feet without boards or ladders. It can be built in half a day, which saves more than twice the time.

And because if you want to spy on the city, the defenders on the city will be firing arrows like rain, so the people on the lookout must wear heavy armor and hold shields to protect their faces."

After writing this, Li Mengxi paused briefly and added emphatically, "The foot soldiers have breastplates, skirts, armors, and greaves, which are fully protected. Only the feet have no armor and boots. Thirty steps closer to the city, there are dense rain of arrows."

, under the swarm of arrows, if you are not careful enough, you will be injured.

Therefore, although armor boots are only a few parts of infantry armor, they are dispensable and do not need to be equipped by all personnel. However, the army needs to prepare several pairs of armor boots in case of emergency."

"A certain person was in a rain of arrows, with arrows whistling from left to right. The shield was in front of him, and he couldn't see. So he didn't know when to put his head in and wait. It would be safe to do so.

A sudden enlightenment amidst the rain of arrows, on the battlefield, one's eyes cannot see six directions, but one's ears can see all directions.

Those who are experienced in battle formations will know when an arrow is approaching when they hear the sound, and dodge it quickly, so that they can survive a hundred battles."

"Exploring the details of the enemy city is just to know the structure of the enemy city and choose the best siege point.

As for the method of leaving a mark after exploring the city, the method of leaving a short sword thirty steps away is useless.

Because during the siege of the city, the soldiers carried ladders and charged forward. It still took thirty steps to pass the point marked by the dagger at the end of the ring. The ground was uneven and there was a deep trench in front. After charging thirty steps away, there would be a deviation.

Taking risks to explore the enemy's city is originally a sophisticated siege strategy, but if it goes astray, the subtlety is gone, and all previous efforts are wasted.

Therefore, the method of marking must be kept under the city wall and cannot be left thirty steps away.

The method of leaving a mark nearby, if a well gate is built, can make the sergeant stand down from a high position and send a cluster of red feather arrows at the mark. The base of the city will be a cluster of red, making the mark clear.

If there is no well gate, the dragging method can be used, where people shoot rope arrows to the bottom of the wall and use the rope as an eye-catching mark.

However, thirty steps from the city, they were already within striking distance of a crossbow. Arrows were raining down on the city, and those who raised their bows to fire arrows were in danger.

From this, he tried a clever method to stop the rain of arrows on the city, which was wonderful.

There is a method of borrowing arrows from the straw men. Hundreds of straw men are inserted into the shield formation, and they approach the city. They ask the soldiers to deliberately provoke the enemy with words and deceive the arrows. When the straw men are planting arrows all over the city, the enemies on the city will think it is

, our army wants to defraud its arrows and attack the city while the arrows are empty. At this time, if the enemy thinks that they have seen through our plan, they will stop their bows and crossbows, and will not fire their arrows.

In this way, if the enemy sees through my plan, my plan will be reversed.

After nearly thirty steps, the enemy had no more arrows, so my good archer could calmly shoot the rope arrow as a mark.

This is a strategy of making big moves and making small moves, using big moves as a guise to cover up small moves.

When it comes to dragging and shooting, rope arrows need to be prepared because there is a possibility that the rope will loosen and break.

If you want a rope arrow to shoot far, you can't tie it with a thick rope, but a thin rope.

The thin rope is close to the ground and difficult to see, making it difficult to guide the sign.

Therefore, there is a remedy.

The remedy is to paint the arrow rope red, and second, tie the arrow rope high. When tying it high, a long pole is needed. However, a blunt pole cannot be inserted into the ground and stand upright in a hurry. Therefore, it is better to bring a gun. With a gun,

You may wish to bring a gun flag, the flag logo will be more obvious.

Then, the rope arrows were shot down the city, nailed to the entrance of the stairs, the rope was straightened, and under the flag gun, thirty steps, the red line was pulled, this guidance was obvious. This marking method was extremely precise.

Rope arrows can also be retrieved. If one misses, they can still be pulled out and shot again. Therefore, rope arrows can be extremely accurate, especially better than Akabane."

After finishing recording the dragging method, Li Mengxi paused for a moment. Next, it was time to write more important content.

The drag shooting method is just a small tactic, and the following content involves the underlying underlying laws related to bow and crossbow damage.

“When a hundred people attack a city, the casualties are far less than when ten people attack a city.

The number of people attacking a city is inversely proportional to the casualties, rather than the excess number of people, the excess casualties. This is different from common sense, why?

This principle is stated in "Lu's Spring and Autumn Annals", "Ten thousand people hold bows and shoot one move, and all the moves will hit". This is the probability.

There are numerous enemy bows and crossbows at the top of the city. I attack the city alone, and there are hundreds of archers at the top of the city.

I attack the city with a thousand men, and the city can accommodate a hundred archers.

If one man attacks the city and a hundred bows shoot at me, he will surely die.

Thousands of people attack a city, and a hundred bows can shoot a thousand people. If one bow hits ten people, the rain of arrows will be dispersed, and the killing effect will be great.

It can be seen from this that when attacking a city, it is good to have more people. Even if they do not participate in the siege, they can still divide the rain of arrows. If there are too many people, the enemy's arrow rain will be dispersed, so our army's casualties will be too low.

So I know how to attack a city. If I can attack a city with a hundred people, I will not attack it with ten people. If there are too many people, the casualties will be too small.

As we know, the most effective way to kill with crossbows is to shoot in groups, that is, a hundred bows can shoot at one person. The efficiency of mass shooting is several times that of a crossbowman who selects the enemy and shoots by himself.

I know how to defend a city. When defending a city, if ten and twenty crossbowmen at the top of the city can shoot one person at the same time, the killing efficiency will be several times that of scattering. Since the killing is high, the defense of the city will be greatly beneficial.

As for the method of mass shooting, there is just one method that can be used. The method is the method of gathering soldiers in the grassland with the sound of a red rod and a red feather.

The commander of the army fired the diprosium to shoot at the enemy somewhere. When the crossbowman near the left saw the direction of the diprosium, he stood up and shot at the enemy.

With this method, you can focus your shots.

The method of concentrated shooting has several advantages besides increasing the efficiency of killing.

First, in a critical moment, an enemy army is climbing the city and is about to reach the top of the city. At this time, three or five bows cannot stop it. Unless twenty bows are fired together, the attack cannot be stopped. Call the Dysprosium shot, and twenty bows are fired from the left.

After shooting, twenty bows can be gathered together to shoot one person. Therefore, in times of crisis, the power of the crossbows on the city head to resolve the crisis is increased tenfold.

As for the second, it depends on the angle. Sometimes, if you shoot the enemy from the left, the enemy raises a shield to block the left, and the crossbow from the left is delayed and unable to make a successful result. At this time, if you shoot from the left, if the right can follow up, it will be easy to kill the enemy.

Er. The purpose of singing the dysprosium is here. The singing of the dysprosium can command the people on the left and right, so that the left and right can cooperate seamlessly.

The sound of the dysprosium is of great use when defending a city. Those who are good at shooting can use the sound of the sound to gather crowds, so they may be called "those who shoot the sound".

Li Mengxi added another unit to the army that was only in name only, the Shesheng Shiwei, or Shesheng Xiaowei, who were full-time personnel who ordered the concentration of fire attacks when defending the city.

Li Mengxi has understood a core principle: the killing efficiency of concentrated fire is several times that of scattered fire.

This theory can be used for city defense and siege, for infantry and crossbows, for cavalry and cavalry, and for all long-range attacks and long-range operations.

Concentrated fire attack can improve the killing efficiency. This theory is useful even in the age of firearms, cannons and rockets.

This may involve overall planning and optimal solutions. Under the surface of the weapon, there are mathematical principles.

There is another place where Mingdi plays an important role, and the role of Mingdi becomes more and more prominent.

Now that I think about it, I can see how many uses Ming Dy has had in total.

First, the method of intimidation by sounding a thunderbolt. When capturing prisoners, sound a thunderbolt to deter the defeated troops and prevent them from escaping.

Second, use the hammer to remove the arrows and use them as sharp-edged arrows to shoot at the heads of defeated soldiers. The effect is the same as a rubber bullet, and the deterrence effect is even stronger.

Third, the chirping die is fired at one's own head, which is used to command advance and retreat on the battlefield. With the chiming die, the command can be conveyed across distances at the speed of an arrow, and is accurate to the centurion. One chirp of dysprosium means forward, and another chirp means retreat. Binary system

, with only two commands to advance and retreat, the command's reaction speed can be increased several times faster by firing the Dysprosium.

As for the fourth, what we have learned today is also the tactic of Maodun Shanyu, the hero of the grassland. He used thunder to gather the crowd and concentrated fire, which increased the killing efficiency several times.

The military needs to use the buzzer everywhere. There must be at least two kinds of buzzers. One is used for communication, which uses the tipless buzzer, and the other is used for mass shooting. At this time, the buzzer also needs to have lethality, and the buzzer should have arrows.

If there is no Feng Ming Dy, it can be assigned to messenger troops, but if it has Feng Ming Dy, it can be assigned to soldiers who are good at shooting, and can be used to defend the city or during cavalry battles.

This piece of knowledge, the knowledge of concentrated fire shooting, may be the most important and valuable piece of knowledge that Li Mengxi has realized today.

According to Guan Yu's teachings, why the casualties of a hundred-man siege are less than those of a ten-man siege. In addition to sharing the arrow rain and preventing the enemy from focusing their fire, there is another reason.

"Shield Array.

When attacking a city, shield array is an extremely effective means to reduce casualties.
To be continued...