China used maps to fight in ancient times. As early as the Battle of Zhuolu, Huangdi asked Cangjie to make maps of the combat locations, which was the legendary "Shihuang Map".

The true military sand table was recorded in the "Book of the Later Han Dynasty? Biography of Ma Yuan" during the reign of Emperor Guangwu of the Eastern Han Dynasty. It was made of rice piles as raw materials and piled up terrain, cities, troops, etc. on the table. It was recorded in very detailed information in "Book of the Later Han Dynasty? Biography of Ma Yuan". Then it gradually developed and improved. By the early Ming Dynasty, before the army fought, it became a common practice to make military sand tables.

In Western records, the earliest sand table was invented by Prussian military adviser Von Leswitz in 1811. However, when the Western sand table appeared, it appeared in a very complete form and was used as a means of entertainment and training. It was not until the First World War that the sand table was truly used in practice.

As an art student, Zhu Qi naturally has never learned military education, but he is familiar with model production, and the sand table is a kind of model.

If you want to make a sand table, you must first understand the terrain and other detailed data, which are naturally in the military camp.

We will talk about martial arts tomorrow, and we only have one day to make the map sand table. Zhu Qi did not dare to delay at all. After sending away the prince Zhu Biao, he took his young follower Zhu Di and went straight to the imperial guard camp without stopping.

In the year of Hongwu, there will be twenty-six guards in the imperial guards. Tomorrow, the place where the martial arts talks will be located is the Jinwu Guard, and they will be stationed north of the imperial city. The two of them passed through the imperial city, left the Xuanwu Gate, and then arrived at the Jinwu Guard camp.

Because he received the order of the crown prince Zhu Biao, Zhu Qi and Zhu Di did not get any obstacles when entering and leaving the military camp. This was impossible for the previous dynasties to be able to enter and exit the imperial guard camp with the order of the crown prince. But at this time it was Hongwu of the Ming Dynasty. Zhu Yuanzhang trusted his prince and his sons very much, so the situation was different.

After finding the quarantine officer, he explained his purpose. The quarantine officer did not dare to be negligent at all. He quickly took out the actual location of the sand table and various data booklets, and even asked someone to carry a sand table up. This was of course they had done in advance.

The map used to talk about martial arts tomorrow is around Zijin Mountain in the area around Yingtian Prefecture. Here, the three peaks are connected like giant dragons, mountains, water, and city. It was known as "the dragons on the mountain of Zhongshan and the tigers on the stone city". In ancient times, many wars relied on geographical locations, mountains, rivers, forests and valleys, so it is natural to use Zijin Mountain as a map to talk about martial arts.

This made sand table is a mountain with sand and gravel in the center, and a terrain is arranged around it. From the appearance, it is very exquisite and beautiful, especially the city of Yingtianfu, which is marked with a very stylish wall.

However, looking at the sand table prepared in advance, Zhu Qi frowned. Zhu Di did not feel it was inappropriate, but instead clapped his hands and said:

"That's great. It turns out that there are ready-made sand tables. Brother is obviously taking care of us. Third brother, let's change this sand table and use it directly tomorrow, but it's just passing the test!"

Zhu Di was happy, thinking that the money must have been settled, but after reading the data in the booklet, Zhu Qi shook his head and said:

"No, we can't use this sand table directly."

"Ah? Third brother, why?"

Zhu Qi handed the booklet to Zhu Di and sighed:

"I dare not use it. Looking at the data in the booklet, the size of Baima Lake and Yanque Lake is obviously different, but the sand table is marked with the average size, and the other lakes are the same, not to mention the distance. After looking at this sand table, I didn't even know how far it is to get from Zijin Mountain to Yingtian Mansion. What else can this sand table besides being beautiful? The generals are not fools, and the elder brother is not. Taking this out is just a fool. Do you want to invest? Do you want to invest?"

In Zhu Qi's eyes, this thing is too unstandard! Zhu Qi's already used to using the grid method of modern thinking to make models in proportion. Seeing the terrain in the sand table map in front of him, the lake marked larger than Yingtian Mansion, including mountain height, lake long, etc., there is no data such as any.

Although he has not received military training, Zhu Qi has learned mathematics at least. Xiao Ming has a journey of one thousand meters to go home, and he has a hundred meters in a minute. How long does it take to get home? At least he can take out the data to calculate the problem.

Zhu Qi ignored the other soldiers from the Jinwu Guards beside him and pointed to the sand table and said:

"The distance is not marked on this sand table, and many things are obviously exaggerated and do not conform to the book data. How long does it take to go from one place to another?

Suppose our army is in the north of Zijin Mountain and the enemy garrisons on the south of Zijin Mountain. I divided my troops into three groups, crossing the mountains and pretending to attack the front, and the two groups went around the left and right respectively. After the frontal attack started, they began to attack the enemy. You see that the east and west sides of Zijin Mountain are generally wide, and I don’t even know how high the Zijin Mountain is, and I don’t know how far the left and right sides are. When will the three groups send troops and when will they meet? I don’t know these.”

Zhu Qi didn't understand the art of war, but in war, time is a very critical element. The invention of the watch was not to show off at the beginning, but to be able to accurately time on the battlefield to accurately complete the deployment of strategic policies. In Zhu Qi's opinion, the battlefield deduction that cannot even take into account time may be worse than talking about war on paper.

Zhu Qi talked so hard that Zhu Di was stunned, but Zhu Di quickly asked:

"Brother Third, the enemy is stationed on the mountain. It seems that it is not appropriate for us to go over the mountain and attack directly, right?"

Zhu Qi was stunned. It was like someone else building a camp based on the water, but you went directly to attack. It was really a bit stupid. Sure enough, you shouldn't talk to Zhu Di about these professional military topics, and you'll get rid of it once you talk!

But what Zhu Qi said just now is striking. If he gives in at this time, then will he still have the prestige of being a brother? The most important thing is that men are teenagers until death, which teenager doesn’t like face?

Zhu Qi remained calm in the face of danger, and his face was not red for a moment, and continued:

"Soldiers are also insidious ways. The enemy is stationed on the mountain, thinking that no one will cross the mountain to attack. I did this, pulling two cannons up and slamming the camp below. When the enemy is in chaos, the left and right troops will attack with the situation!"

Zhu Qi clapped his hands and said:

"Isn't that done?"
Chapter completed!