At that time, Touman Shanyu's son Maodun was appointed as the Xian King of Zuo.
The Huns were different from other countries in the Central Plains in that they respected the left, and the position of King Zuo was usually held by the heirs of Shanyu.
However, a hundred years later, King Zuo Xian often died unexpectedly. The Xiongnu thought this title was unlucky, so they changed it to "Gu Yu".
The Xian King of Zuo, Maodun, reminded his father:
"Chanyu, we fight only to plunder livestock and property."
"Yunzhong County is full of wasteland, and the Qin people's own food must be transported from the central plains."
"In addition to losing a large number of warriors, what can we gain by attacking Yunzhong County?"
Touman Shanyu replied disapprovingly:
"Prairie, a vast expanse of grassland."
“The Hetao Plain is right beside the Yellow River and has a warm climate, fertile grass and beautiful water, suitable for grazing...”
"If we can own these two areas for a long time, we can drive our cattle and sheep here to spend the winter when the weather is cold every year, and the losses will not be so great."
"What's more, the Qin people only have more than 10,000 people. Do you think we will lose a large number of warriors when we attack Yunzhong?"
Touman Shanyu is right.
Although the Hetao area is located in the north and the temperature is not low in winter, it is at a lower latitude than the Mongolian Plateau to the north, and the Yinshan Mountains block the cold current, so it can become a haven for the Xiongnu in winter.
The lifestyle of the Xiongnu is a bit like that of migratory birds... when the weather is cold, they go south, and when it is warm, they go north again. They go back and forth like this every year. It is no wonder that everyone is required to be able to ride a horse.
Mao Dun objected:
"But we have already occupied most of the areas in Houtao and Qiantao."
"If you are only considering migrating in winter, just holding on to the current place is enough."
Touman Shanyu shook his head, then spread a sheepskin map in front of Moton, pointed to the location of Yunzhong County and said:
"Yunzhong County is the stepping stone for the Central Plains to enter the Hetao."
"If we want to own the Hetao for a long time, or if we don't want to find the Qin army everywhere when winter comes next year... we have to drive them all out, do you understand?"
Although what Touman Shanyu said was reasonable, Mao Dun was not optimistic about this attack.
Mao Dun can’t explain the reason. Maybe it’s an intuition with some analysis...
Mao Dun did not think that the Qin people were bluffing.
Mao Dun used himself to save others. He believed that if he had been in the position of the Qin general, Shen Bing, he would not have given up the entire Hetao so easily and only defended one county in Yunzhong.
From this, Maodun thought that Shen Bing was not simple.
But at this time, Mao Dun was unable to stop Shanyu from going to war, so he could only reserve his views and be careful.
In fact, Mao Dun's abilities and talents are indeed stronger than those of his father, Touman Shanyu.
But in the end they turned against each other and killed each other...
Touman originally wanted Maodun to continue his position as Shanyu, so there was no problem at this time.
However, after Touman married the Que family, he wanted to establish Que Qian's child as King Zuoxian to inherit the throne of Shanyu, so conflicts arose.
Touman Chanyu played a trick. He first negotiated peace with the Yuezhi and used Maodun as a hostage... This is normal, and it is also popular in various countries in the Central Plains. Taking the prince as a hostage means guaranteeing that he will not betray the covenant, otherwise the prince will
Life is not guaranteed.
Mao Dun had no doubt that he had it, so he went to Yuezhi alone to pledge it.
Who would have thought that Touman Chanyu was using Yuezhi to get rid of Maodu... As soon as Modu arrived at Yuezhi, Touman Chanyu led a large number of troops to invade.
As soon as Mao Dun heard the news, he realized that something was wrong, so he immediately stole the horse and escaped from Yuezhi.
This was mainly because the nomadic people's city defense was not tight, and even the Yueshi did not expect that Touman Shanyu would overthrow the alliance so quickly without any news, so they didn't react at all and didn't have time to take care of Mao Dun and let Mao Dun take care of him.
Dun successfully escaped.
After Mao Dun escaped back to the Huns, he no longer had hope against Tou Man Shanyu.
This guy is also a ruthless master. In order to make his subordinates obey orders resolutely, he always experiments with things he likes...
He ordered his subordinates to shoot wherever they wanted, otherwise you would be punished with death for disobeying military orders.
Shoot the birds and beasts first, that's no problem.
Then came Shemao Dun's beloved horse. Some people did not dare to follow, and were immediately killed by Mao Dun.
Then came Shemao Dun’s beloved wife, some of whom did not dare to follow, and were killed by Mao Dun again.
In this way, all the subordinates will know, and they can shoot wherever Mao Dun points out, otherwise they will die.
Then.
Mao Dun shot Tou Man Shan Yu while he was out hunting...
This is the allusion of "Mingdi Patricide". After that, Maodun led the Xiongnu to conquer the north and south of the desert. Even Liu Bang was defeated by him and had to surrender and surrender in exchange for peace on the border.
Touman Shanyu's attack plan is simple:
King Xian of the Right led a frontal attack of 10,000 cavalry, while King Xian of the Left Maodun took advantage of the battle ahead and led 5,000 cavalry along the Yellow River to the back of the Qin army's defense line to outflank the Qin army... This was a tactic commonly used by the Xiongnu.
During the Mongolian period, they still used mobility to divide and encircle the enemy.
But it doesn’t matter whether tactics are repetitive or not, as long as they are easy to use and can kill the enemy.
The news soon reached Shen Bing.
Shen Bing was planning the irrigation of the enclosed land.
Irrigation is not something that can be done by just opening an artificial river and then introducing ditches and canals into the fields, or adding a few water trucks.
This model is indeed feasible in rainy and humid areas, but it will cause problems in drought and water shortage areas.
The reason is that evaporation is large in arid and water-deficient areas, and flood irrigation methods commonly used by people will salinize the land and reduce its fertility.
As mentioned before, water contains salt to some extent. After flooding, the water evaporates and the salt remains in the land. It accumulates year by year. After a few decades, the land will become saline and alkaline and no grass will grow.
The modern solution is to use sprinkler irrigation and drip irrigation, which is to irrigate directly into the roots and leaves of crops and use the least water to meet the growth of crops... Most of the water is absorbed by the crops, leaving very little water in the land, causing salinization.
The speed is greatly reduced.
Due to limited productivity, Shen Bing was unable to irrigate using this method.
What Shen Bing can do is to dig as few canals and ditches as possible, and use bamboo tubes to divert water into the fields to prevent water from seeping into the soil and causing unnecessary loss during transportation.
Shen Bing left it to Hu to complete this aspect.
Fortunately, when Shen Bing came out of the artillery division, he selected talents in various fields. Now in Yunzhong County, there are people responsible for every aspect.
At this moment, Ren came into the account and reported:
"General, there is some movement among the Huns, and they seem to be gathering their troops to attack!"
Shen Bing just nodded and replied:
"knew."
Shen Bing thought it was just Ren and others trying to catch the enemy, and he always believed that the Huns had no reason to attack Yunzhong County.
However, when Wang Ben came with Wang Bai and Lei Hui, Shen Bing discovered that this might not be the case...