Daqin Engineers

There are only two changes today, and three changes will continue tomorrow.

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Wang Jian is responsible for breaking the ice northward.

The Hetao at this time can be said to be a land of no owner... Li Mu died and the Kingdom of Zhao was destroyed. Zhao Jia was unable to resist the Xiongnu, so he could only give up this area.

The northern land in history is too far for Qin, who is busy unifying the six countries of the Central Plains, and is more than 1,700 miles away from Handan.

So Qin never failed to take care of it for a while, and was subsequently occupied by the Huns.

It was not until Qin unified the Six Kingdoms that Meng Tian expelled the Xiongnu and re-included the land in the Da Qin territory.

Now, it was a blunder because the Chu army surrounded the beam, to be exact, Xiang Yan's grand strategy, forcing the Qin army to divide the army in advance.

The most troublesome thing for Wang Jian is the distance: more than 1,700 miles.

With an infantry marching speed of fifty miles a day, this distance would have to travel more than a month.

More than a month is not a big problem in principle. Wang Jian has inquired about the freezing flood and knew that the freezing period of the Yellow River is roughly three or four months, and will not thaw until the beginning of spring next year.

In other words, during this period, if the ice is successfully cut and released, it can be flooded downstream.

The problem is that Wang Jian is worried about delaying the freezing of the river course for too long, such as freezing for dozens of miles or even hundreds of miles... that can't be done.

Wang Jian's countermeasure was to organize three thousand cavalry to advance.

The speed of the cavalry is much faster than that of the infantry. If they are marching in a hurry, they can force one hundred and fifty miles a day, so that they can rush to the north to organize manual ice-cutting in ten days.

The Minister asked with some concern:

"General, has the Northland been occupied by the Huns?"

"If there are Huns or Northland soldiers defending, I am afraid that I will wait for three thousand cavalry..."

Wang Jian understood the meaning of these words.

Neither Li Mu's northern soldiers nor the Huns were easy to provoke.

As long as there is one of the two, Wang Jian, the three thousand cavalry soldiers, will fill up soon, and there will be no scum left.

But after thinking about it, Wang Jian shook his head and said:

"No need to worry."

"Beidi soldiers should have been recruited by Zhao Jia, and the remaining few soldiers who are also civil organizations."

"As for the Huns..."

"Zhao Mie will enter winter soon, and the Xiongnu will have to wait until spring next year to attack."

"So the defense of the Northland at this time should be weak, and 3000 Jingqi is enough to deal with it!"

Wang Jian’s analysis was well-founded, but this was only an analysis after all, and what the facts were is another matter, so even Wang Jian’s heart was a little shameless.

Another point is that Wang Jian is worried about the people there...

But of course Wang Jian wouldn't just dive in like this, so he sent a quick horse to the North for reconnaissance immediately.

At the same time, the cavalry was organized in a fierce manner, led by him and then followed, and finally 30,000 infantry.

Before that, Wang Jian had made some preparations, and he took a person with him.

This person is called .

The reason for this name was that his parents were both slaves. Although Xi was born humble but hardworking, he worked full-time in Handan to dig ice and divert water... It is said that Xi also has a method that can quickly defrost and use not much manpower.

This made Xin quite famous in Handan, so Wang Jian would find him.

Together with the son, there are dozens of his servants and more than a dozen horse-drawn carriages.

Wang Jian originally wanted to persuade Sun to put down those "equipments" because they would slow down the marching speed of the cavalry.

But Xin told Wang Jian:

"General, if you want to dig ice and break the river, this thing is indispensable!"

"If you leave this thing, I don't need to wait."

So Wang Jian had to give up.

Wang Jian took the cavalry all the way to the Northland, where he found that the situation was as he expected. The Northland was unguarded, but even the people escaped.

This is actually predictable, and it is also what Wang Jian is worried about:

As soon as Li Mu died, everyone knew that the North Land was over, either by the Qin army or by the Huns.

So staying here is just waiting to die?

Coupled with Zhao Jia's agitation... Zhao Jia must do this, that is, move the soldiers and civilians of the North to the east, otherwise Zhao Jia would have the ability to face both the Xiongnu and the Qin army here.

Moreover, these people and the army are the foundation of Zhao Jia's founding of the country. Of course, he will not let it go.

As a result, the entire Northland is empty, leaving only the old people who cannot move or do not need to move.

Wang Jian couldn't take care of those many, so he ordered the cavalry to live in the dwelling and rest for a while, then take the young woman out to survey the river.

After exploring the river with a group of people, Xin gave the answer within half an hour:

"General, fortunately I waited early, and the river was only three miles frozen."

"If the weather is colder, I am afraid that the freezing speed will not be what I can wait for!"

The frozen section is the first corner of the "several" shape. This location is further north and there is a big bend. The river flow slows down here and is more likely to be frozen.

But even like this, Wang Jian was taken aback:

"Frozen three miles?"

"But I only have three thousand cavalry, and all the people in the North have been moved away from the country..."

If there are tens of thousands of infantry or civilians, enough manpower can be organized to pile up.

Now there are only a few thousand people, how can he pierce the ice-bound Sanli River?

I don’t want that son but I am very confident:

"The general rest assured."

"As long as the weather hasn't been severely cold these days, a large area of ​​ice is covered, otherwise the ice can be broken!"

Then Sun ordered the next person to bring his car of "equipment" up.

Those "equipments" are not complicated things, just big iron boxes.

To be precise, they are iron boxes without lids. Wang Jian said at the beginning that these iron boxes were used to transport ice cubes, but after thinking about it, he felt wrong... Wouldn't it be more portable if they were used to transport ice cubes?

Wang Jian didn't ask much along the way. At this time, seeing Xin and his party line the iron boxes in the river, he knew that they seemed to be used for other purposes.

Then she found out that this was the case, and Xin led the people to throw firewood into the iron box, loosen it and set it alight.

Seeing this, Wang Jian couldn't help but said "Oh".

This method is good. The wood burns in the iron box to melt the nearby ice cubes into water. At the same time, the young man dug diversion channels on both sides to release the melted ice water from both sides, and then the ice cubes were melted. Repeatedly...

Only half an hour before and after, the river channel at the iron box was split like a cross cut by a long sword.

If you continue to cut upwards like this "one sword and one sword", you will soon cut to the most upstream.

There is a lot of river water in the upper reaches, and then these ice blocks will crack like a collapsed dam, and then the river water will rush down layer by layer...

Wang Jian sighed:

"Wonderful, wonderful!"

"No wonder this servant doesn't take the frozen Sanli River in his eyes."

"So there is such a way!"

Of course, this work can't just be done by the young people. With a wave of Wang Jian, the cavalry lined up to help.

Here is the manpower allocated by the young man:

One thousand people cut wood and firewood, one thousand people carry wood and burn fire, and another thousand people open canals to divert water...