Until the two trenches and low walls were repaired, there were still people who were repairing them so that Cao's army could attack. Well, strictly speaking, it would be more troublesome when entering.

They won't stay here for a long time.

Their task is to dig the tunnel into pieces.

These dug ditches will become extremely hard after being frozen again, and then after the soil softens in the spring, there will be no big obstacles to the repair of the road...

Liu Fu arranged manpower, allocated the physical strength of these county soldiers and civilians, and controlled the progress of the project.

This is his specialty.

If Liu Fu was asked to go to battle and attack Cao's army, Liu Fu would naturally be afraid, frightened, and at a loss. However, as long as he did not contact Cao's army, even if he knew that Cao's army was coming here, he would not be afraid.

If he has more personnel, he can not only dig out the trench, but also add some spikes buried in the trench, and even try to make some traps...

But his suggestion was rejected.

The Bachelor of Workers, who is responsible for engineering drawings and acceptance, said that the ones that Liu Fu proposed were good, but would increase the consumption of extra time. They only needed to block Cao's soldiers and did not need to pursue how many Cao's soldiers were killed.

The Bachelor of Engineering also said that after this battle with Cao's army, the Cavalry intends to set up a special military camp in the army that is specifically responsible for projects similar to this kind of project.

Unlike the general military, which is a job like infantry or part-time work, the cavalry means to have a dedicated person to do such things.

After all, not everyone has the courage to face the bloody and tragic battles in the battlefield array. Some people have good physical fitness but very little courage. Such soldiers often die in vain when they first go into battle, or change their timid personality through the tempering of blood and fire.

However, most of these people are dead, and only 10% or 20% are lucky enough to survive.

So the meaning of the cavalry is to make these soldiers who are timid but have good physiques and strong endurance and are not suitable for fighting, so there is an extra way out.

Actually, isn’t this just like an auxiliary soldier?

Liu Fu muttered in his heart, but he would not say it out. Of course, he did not realize that not only the great man, but the entire human world, the development process must be a more detailed and professional division of labor, and sooner or later it will be eliminated by humans themselves.

...

...

On the other side of Hedong and in Jinjin, Cao Hong also built a pontoon bridge with a team of men to prepare to cross the river.

If Cao Xiu was to seize Wangwu Mountain, then Cao Hong’s goal was to seize Zhongtiao Mountain.

If the Zhongtiao Mountains are compared with the Taihang Mountains and Qinling Mountains around him, then Zhongtiao Mountains are like a younger brother. They are slender and long, like thin soldiers in the military, and they will never be very conspicuous.

However, such a slender mountain range has implicated the war line of China for thousands of years.

Many people think that some important towns or passes can be called the key points of war, but in fact, this is not exactly the case.

Before, the Cao army could not attack Zhongtiao Mountain, not because Zhongtiao Mountain could not be crossed, nor because Zhongtiao Mountain was difficult to conquer. Instead, on the south side of Zhongtiao Mountain, nature carved deep ditches with magical awesomeness.

From the foot of Zhongtiao Mountain, it stretched to the ditches of the river, and some ditches even exceeded 100 meters deep. Sometimes, they were only a few dozen meters away from each other, or even a dozen meters away, but there were deep ditches of nearly 100 meters below their feet. In the Han Dynasty, when there was no convenient road and bridge technology, these ditches were insurmountable natural barriers. During the time when Cao's army could not cross the river on a large scale, as long as Cao's army dared to attack along the ditches of Zhongtiao Mountain or on the earthen plateau, the cavalry would dare to circumvent Cao's butt through a ditches.

Therefore, only when the icy water flow in the upstream is reduced, the riverbed is exposed, and the frozen soil is convenient for the rapid construction of floating bridges, can the Cao army have the conditions to cross the river in large numbers and advance along several ditches and soil plates.

Moving forward hand in hand requires more tacit cooperation, so the only ones who are responsible for this task are the core generals and soldiers of the Cao army.

So it can be said that this time, Lao Cao really bet his old friends on the gambling table.

If the losses were heavy, even if they could go back, it would be difficult to continue to suppress the Shandong gentry. Even if Cao Cao had two arms out, he would not be able to come out.

In Shandong, there seems to be benevolence, righteousness and morality in daily life, but in fact, there is no military power, so there is no way to make those local big families obedient. Or, let them pretend to be obedient.

But it is obvious that Cao Cao had to fight.

Cao Hong also knew this, otherwise he would not let his own son...

Ah, my son.

Cao Hong's teeth started to bite.

Cao Hong looked back at his back.

That was a neat elite Cao army.

In the early years, Cao Cao gathered 300,000 Qingzhou soldiers, either really or 300,000 real soldiers, but a large group of families with their families. But the advantage is that these Qingzhou soldiers survived the bloody battle without equipment because of their years of war. They have more or less abilities.

And the key point is that the war-wearing threshold of Qingzhou soldiers is quite high, and it can even be said to be comparable to that of Hussar soldiers.

Hussar soldiers were rewarded with merits and military achievements, which could bring about their class improvement, status changes, and economic prosperity. For the Qingzhou soldiers, war was their lives.

Since Huan Ling, Qingzhou was not peaceful, and after the Yellow Turban Rebellion, they were fighting almost every day. Therefore, war was like a part of Qingzhou's soldiers' life. Since it was life, there was no disgust or joy, it was just life. When they surrendered to Cao Cao, they promised to sell Cao Cao for a lifetime.

This is a contract.

Perhaps some people in later generations thought that contracts were like a fart, but in fact, it was because these later generations regarded contracts as a fart. In history, these Qingzhou soldiers did abide by their contracts from beginning to end, and they officially ended their life-salary agreement after Cao Cao's death.

So this time, I really worked hard.

Cao Hong thought and calculated, according to his usual habits, measured the costs and benefits since the war started, and then took a deep breath.

This war was indeed a very unfavorable deal.

Losing to an extreme loss.

But I had to fight.

Because if you don't continue to fight, then your early investment will be wasted...

But now when will you get profits if you continue to invest?

Or...

Cao Hong gritted his teeth and looked back at the tallest star in the Cao army camp. Then he turned his head and raised his foot to move forward without looking back or hesitation.
Chapter completed!