Just when Xu Wei was thinking about Modao's troops.
Wang Lei continued: "Fortunately, we have been building the Great Wall and Wubao on the border. As long as we guard a few conspicuous places, it will be difficult for the Xianbei people to invade our Mayi city!"
After Xu Wei came to Mayi, in order to strengthen defense, he built Wubao in Wuzhou, Qiangyin, Pingcheng, Nao County and other gaps in the Datong Basin. They were not Wubao in this world, but were known as the strongest defenses in the cold weapon era.
The diamond-shaped docks, especially Xu Wei's, also used earth and cement. Each diamond-shaped dock can station 2,000 people. In terms of defense, in addition to besieging these docks until the supplies are exhausted, 20,000 to 30,000 people will die.
Man, there is no other way to break these forts.
Niu Gui shook his head and said: "Although the terrain in Mayi is dangerous, there are many gaps that can be broken through. For example, Pingcheng County is the first line of defense guarding the northern fortress. But it is not as dangerous as Yanmen Pass, which only guards the dock.
It is difficult for the fort defense to defend against hundreds of thousands of Xianbei cavalry.
Hundreds of years ago, Emperor Gaozu personally led his army to the north to meet the attack. He won consecutive battles, so he began to underestimate the enemy. He rushed into Pingcheng with light troops, and was finally besieged by Maodun at Baishan Mountain. Think about it and know that the battlefield can accommodate hundreds of thousands of people.
It is difficult to defend if we want to defend it. The Xianbei people are here to plunder, and they will bypass the forts that cannot be captured, but we cannot let the Xianbei people get close to Mayi. After all, our workshops are outside Mayi.
The Sanggan River line."
Niu Gui often traveled around and knew the terrain around Mayi very well.
The reason why the Han Dynasty gave up the land outside Yanmen Pass was not only because of its declining strength and difficulty in defending against the continuous invasion of the Xianbei people, but also because the terrain outside Yanmen Pass was not considered dangerous and it would take a lot of military power to defend it. Therefore, as soon as Xu Wei occupied Mayi,
The big Han simply gave up all the land outside Yanmen Pass.
Niu Gui had never seen the power of the diamond-shaped Wubao. He only regarded it as the defensive power of ordinary Wubao in the Han Dynasty. Naturally, he felt that it was difficult for a Wubao with more than 2,000 people to defend against the Xianbei attack.
"Do you have a map?" Xu Wei wanted to check the terrain around Mayi to see where it is easy to defend!
Soon a soldier brought a map and spread it on the table in the conference room.
But this map is very simple. There are only a few lines representing rivers, a small hill representing a mountain range, and squares representing cities and forts. Xu Wei basically saw nothing right when he looked at it!
"I should have made a sand table earlier!" Xu Wei regretfully slapped himself on the forehead!
It's not that Xu Wei doesn't pay attention to the sand table, but that there is too little foundation in this world. Everything is really lacking. He can only think of something and then 'invent' something. After coming to Mayi, most of his world is in
When we were engaged in production, we were also engaged in things like blast furnaces, textile machines, cement, etc. Naturally, we didn’t think of the sand table, a weapon in the military.
"Sand table?" Wang Lei and the others were all confused. They didn't know what this sand table was!
Xu Wei could only explain: "Hundreds of years ago, Fubo General Ma Yuan helped Emperor Guangwu revive the Han Dynasty, pacify Weixiao, pacify the Qiang rebellion, and establish Lingnan. When he pacified Weixiao, he wanted to make it easy for Emperor Guangwu to see
To understand the topography and geography of Xiliang is to pile rice into a mountain and create a sand table of the topography of Xiliang!"
This is the very first prototype of the sand table.
The sand table is a pioneering work in the history of war and is of great significance. Of course, such a pioneering thing of great military significance was lost in later generations. Even though it is recorded in history books, no famous general has restored the sand table.
It was not until the rise of the West that the sandbox in the modern sense appeared.
I don’t know if this is a defect of ‘good reading without asking for deep explanations’. There are many good things in China hidden in history books. But no one has rediscovered them. Of course, this is because they don’t know the efficacy of these things!
Although Xu Wei explained to Wang Lei and others, they still looked at each other. Emperor Guangwu and others knew, but who was General Fubo Ma Yuan? They had no idea.
Wang Lei and the others only learned Chinese writing from Xu Wei for a year, barely able to recognize a few hundred characters and simple four arithmetic operations, but it was a bit difficult for them to know the historical allusions.
"It turns out to be an allusion to General Fubo, Ma Yuan, who piled rice into a mountain!" Zhang Baiqi, who joined Ma Yuan's high-level meeting for the first time, suddenly realized.
After all, he was familiar with the Six Classics and read history books thoroughly. Naturally, he was not as illiterate as Wang Lei and others! Even Fubo General Ma Yuan didn't know who he was.
Zhang Baiqi saw that Wang Lei and the others were confused and explained: "The so-called piling rice into mountains refers to the fact that the ancestor of this dynasty, Liu Xiu, personally conquered Weixiao. However, at that time, his generals believed that the future was unclear and the outcome was difficult to predict, so it was not appropriate.
Going deep into the dangers, Liu Xiu also hesitated and found it difficult to make up his mind.
At this time, General Fubo Ma Yuan was ordered to arrive. After learning about this, he tried his best to persuade Emperor Shizu to continue marching to annihilate Kaixiao. He also ordered people to take rice and arrange it into valleys, ravines and other terrain features, and then gave instructions.
The situation of mountains and rivers marks the advance and retreat paths of various troops.
In the end, Emperor Shizu defeated Wei Xiao with the help of General Fubo and unified the world. This was the 200-year national destiny of this dynasty."
Under Zhang Baiqi's explanation, everyone suddenly realized that it turned out that rice was used to make maps.
But Zhang Baiqi asked out of curiosity: "Lei Gongqushuai, General Fubo's cartographic method has been lost for nearly 200 years. Can you really make this kind of map?"
Xu Weidao: "The method is not difficult. It is recorded in the history books. We just need to do it according to what the history books say. And it doesn't have to be rice. You can also make it with sand, but it will take a little time."
Xu Wei had heard of it but had never made one. He planned to find a skilled craftsman in Mayi to make a sand table after the meeting.
After talking about the sand table, Xu Wei said to Niu Gui: "If you find a way to find out about Helian's movements, you must know how many people they have gathered, the target and time of the attack!"
Niu Gui said seriously: "No!"
Niu Gui is now in charge of the entire caravan in Mayi. It can be said that the grasslands around Mayi are covered with Niu Gui's footprints. Because the business is fair, he will find ways to help the barbarians when they encounter difficulties. Therefore, Niu Gui is in Hu.
Among people, he is known as the Timely Rainer. He has Hu friends all over the world, and there is no news on the prairie that he cannot find.
"Wang Lei, you go gather the barbarians around us and form the Yi Cong Cavalry. Now it's time for them to contribute!"
Wang Lei said happily: "No!"
There are tens of thousands of barbarians in Mayi, who can form 30,000 to 40,000 cavalry. The large cavalry force he wanted can finally be realized.
Seeing that all the senior officials present were assigned tasks, except for the generals of the Yellow Turban Army, Zhang Baiqi said: "Now that we are also a member of the Tengjia Army, Commander Qu can't favor one or the other. Let us just watch, right?"