Liu Bei could see clearly that there was a frame more than two feet high. Two carpenters were holding the frame together and could run very fast.

Since you can run, if it's a night battle, you can just follow the army and charge into battle.

Liu Bei touched the short beard under his chin and nodded secretly.

Then, it was demonstrated whether the wooden frame could be lifted quickly after falling down.

Lu Li first put the wooden pole on the ground, let go, and pushed the wooden frame. The wooden frame fell over, and the end with the torch hit the ground with a thud.

There was a lot of movement, which attracted the soldiers who were keeping vigil nearby to come around and take a look.

The shelf hit the ground heavily, but the torch was still stuck on the shelf. The rainproof board hit the ground first and supported it, so the torch was safe and sound.

When the shelf fell, Liu Bei originally thought that the torch would fall off, or that it would be knocked out after hitting the ground. However, it was not as he expected.

Liu Bei was slightly surprised that the torch on the wooden frame was so stable.

Afterwards, Lu Li and another carpenter, one lifted the tail and the other lifted the middle, lifted the wooden frame up again. Seeing this, Liu Bei felt that it was ordinary.

“Mr.

Liu Bei laughed and said, "Let's see what's the mystery."

Liu Bei strode out, walked to Lu Li's side, took the shelf that Lu Li was holding on to, Liu Bei hugged the shelf with both arms, and slowly placed the shelf on the ground.

Lifting the end of the wooden pole and leaning against the light of the torch, Liu Bei took a quick look and found that the wooden pole didn't look good at all.

Then Liu Bei brought the torch closer and took a closer look. He saw a short wooden stubble in the middle of the wooden pole. When he looked closer, he saw that the wooden stubble was in the shape of a cone, as if it had been cut out. It did not look like the natural stubble formed after the wood was cut off.

.

Could it be that this short wooden thorn, which is no longer than a knuckle, is the mystery Li Mengxi mentioned?

Liu Bei didn't understand why, so he stood up and looked at Li Mengxi suspiciously.

Li Mengxi then smiled and explained the key points to Liu Bei one by one.

""Sun Tzu" The Art of War has a chapter on topography and terrain.

The flag is standing on the ground. May I ask Mr. Xuande if he knows what kind of terrain there is?"

When Li Mengxi asked for advice, Liu Bei put down his wooden pole and frowned in thought.

"...The flag is raised on the ground, and the ground can be divided into flat ground, ridged ground, and concave ground. Is this true?" Liu Bei hesitated.

"Yeah." Li Mengxi hummed, noncommittal.

Liu Bei was very familiar with Li Mengxi. Li Mengxi didn't say whether it was good or bad, but just said yes, which meant that the answer was incorrect.

(Isn't that right?) Liu Bei frowned slightly, feeling energetic, pacing slowly back and forth, thinking again.

After a while, Liu Bei said again, "There is land on the ground, there is sandy land on river banks, there is swamp land, and there is rocky land. Is this true?"

"Yeah." Li Mengxi still just hummed.

Surprisingly, it wasn't right. Liu Bei then became more competitive. He racked his brains and thought about what kind of terrain he might encounter if the flag was placed on the ground.

After pacing back and forth for more than a dozen times, Liu Bei suddenly had an idea, "Hey!" Liu Bei clapped his hands and turned around to look at Li Mengxi, "There is no other terrain. Mud ground on rainy days, muddy ground on snowy days.

Snow, ice when it freezes, hard soil when there is no snow in winter, soft mud when the snow melts in spring? Is that so?"

"That's true!" Liu Bei's answer was wonderful, and Li Mengxi praised it with his hands.

"Since I studied the art of war with General Guan, I can see that Xuande Gong has mastered the essence of the art of war!" Li Mengxi first praised Liu Bei.

Then he commented, "The many terrains mentioned by Xuande Gong can be roughly divided into four categories when placed on the banner.

Flat or uneven, slippery or not, these are the four categories.

Why? Because the big flag only needs to stand on the ground and does not have to run and climb like soldiers, so the rest can be ignored.

The terrain is flat, and if the bottom of the wooden pole of the big flag is flat, it will be very stable when standing on the flat ground.

And if there is mud, snow, or ice on the ground, if the wooden pole is flat at this time, it will easily slip if it is placed on the mud, snow, or frost. You might as well flatten the bottom of the wooden pole into a cone shape and use the wooden cone to stab it.

Under the silt, ice and snow, if it penetrates into the soil, it will not slip.

However, the tail of the pole is like a cone. If it stands on flat ground, it will inevitably tip over on one side, making it difficult to hold it up. On flat ground without silt, ice and snow, a pointed pole is not as useful as a flat pole.

There are two poles, flat and pointed, each with its own advantages and disadvantages. Let me ask Mr. Xuande, should I use flat or pointed poles for the big flag?" Li Mengxi asked with a smile.

When asked by Li Mengxi, Liu Bei suddenly realized that it was no wonder that the wooden pole at the end of the torch stand was flat with a small short thorn in the middle.

With such a structure, when the ground is flat, the wooden thorns are completely pierced into the soil, and except for the wooden thorns, the rest of the tail end of the wooden pole is flat. This means that the wooden pole can be placed stably on flat ground and will not look like a sharp pole.

Also fall to one side.

And if it encounters ice, snow or rain, small wooden spikes can be nailed to the ground or to the ice to prevent the wooden pole from slipping.

Wisdom can be seen in the details. A small wooden thorn combines the advantages of the flat pole and the pointed pole while avoiding their disadvantages. It is a wonderful thing.

Liu Bei couldn't help but nod. The military strategy was indeed profound and profound. The small military flagpole contained such exquisite knowledge.

Thinking of the book "Sun Tzu" that he had not yet finished studying, as well as more other art of war, Liu Bei suddenly felt that he had a long way to go.

After thinking about it for a while, his eyes touched the fallen torch stand. The stand had been on the ground for a long time, but the torch did not burn the stand at all. In addition, the weatherproof board on the stand had a rainproof board, so the torch would not burn even if it rained heavily.

It will get wet. It’s just a wooden shelf, but I don’t know how many tricks are hidden there.

"Xi'er, I set up a separate battalion of carpenters in the army and gave it to you to lead. Now it seems that I have some foresight, ha." Liu Bei said happily.

The wooden frame can be roughly finalized in this way, and its performance in all aspects has been recognized by Li Mengxi and Liu Bei.

The last problem is that the shelf is too heavy and cannot be easily inserted into the ground like an ordinary flag, unless a shallow pit is dug in the ground and the shelf is buried.

In this way, there is no need for someone to support you all the time at night, which can save the physical strength of the next person. If there is a war the next day, you will have one more fighting force.

But what if there is a war at night and the wooden pole is buried in the soil and cannot be pulled out in a hurry.

Moreover, the torches on the torch stand will burn out and need to be replaced from time to time. You can't just dig the wooden poles out of the soil every once in a while, then put them down and put new torches.

Li Mengxi combined his own knowledge and thought that he could use a large basket with soil or something in it, or more simply, put a bag of grain in the basket. The grain is equivalent to sand. The basket is very heavy and a wooden pole is inserted into it.

If it's in the food basket, it won't fall over.

Rather than finding a basket and filling the basket with soil, using a grain bag is a better choice.

First, grain can be as loose as sand, making it easy for wooden poles to be inserted, while clods of soil and the like are relatively clogged, making it difficult for wooden poles to be inserted into the soil.

Also, from the perspective of saving transportation capacity, transportation capacity is precious, and it is not cost-effective to march with a few baskets of soil.

Since food must be carried anyway, wouldn't it be nice to use food bags instead of soil?
Chapter completed!