Yun Xiao tinkered in the study for a long time, and finally succeeded in making the drawings of the catapult.

The old fisherman looked at the drawings of the trebuchet and muttered in a low voice: "Can this torsion spring be thrown farther if it is thicker, can it be made bigger, and put wheels on the bottom and drag it with a horse." ”

"Fisherman, this thing is not used to kill and injure enemies."

Yun Xiao smiled when he saw the appearance of the old fisherman.

"This thing isn't meant to kill or injure enemies, it's what it's for."

The old fisherman was even more puzzled, not knowing what kind of medicine Bai Yunxiao was selling in the gourd.

"You see, trebuchets are used to throw this thing."

Yun Xiao took out a triangular nail and said to the old fisherman.

"The triangular nails are fitted in such a pocket, and the edges of the pocket are not sewn to leave a thread. Tie the thread here and throw it with a trebuchet. The pocket will disintegrate in the air, and the triangular spikes inside will be scattered everywhere.

In this way, in an instant, in front of our army, a distance of about fifty to eighty paces, can be covered with such triangular nails. If the opponent charges with cavalry, what do you say will happen to them? ”

Batu's eyes widened as he looked at Yun Xiao.

"Horses must jump up if they are pricked, and they don't have stirrups, so they can't stay on their horses so fast. They will be thrown to death. ”

No one knew the tactics of the Huns better than Batu, and this approach was too sudden. Traps could be laid almost instantaneously, and it was impossible for a charging cavalry not to accelerate a hundred paces away from the opponent. If they fall into a trap like Yunxiao, I am afraid that many Huns will be thrown out of the galloping warhorses. If the land freezes so hard in winter, the end must be very sad.

I really don't know how this Hou Ye came up with it, this is simply a disaster for the cavalry in the charge.

"Yes, the cavalry in the charge encountered such a trap. Coupled with the blows of our crossbows, even the Huns, who were two or three times larger than our army, would probably return with a feather. ”

Dai Yu was holding a triangular nail in his hand, and no matter how he threw it, there would be a spike pointing upwards on one side.

"If they come to rest within a hundred paces, our longbows will be at their fullest strength. The rate of fire of the longbow was much faster than that of the iron-tired crossbow, and it was sure to give the Huns the greatest blow. ”

Goshawk looked at the schematic diagram that Yun Xiao had drawn on the paper and pondered. The archery skills of the villagers were all taught by him, although he didn't dare to say that all of them were a hundred steps through the Yang. But shoot the enemy within a hundred paces. It's still not a problem.

Within 100 steps. The power of the compound bow is not something that the Huns' leather robes can defend against. It can be said that if the generals of the Xiongnu dare to charge against Yun Xiao's team, the end can only be the annihilation of the entire army.

Listening to the compliments of his subordinates, Yun Xiao smiled faintly. It is important for generals to understand the use of tactics, and generals must know the equipment and tactics they have. This is the experience that Yun Xiao summed up.

"Our tactics are to try to get the opponent out of the way. Many of you participated in the battle of Gaoyou. Real knife to knife gun to gun. We don't have any advantage. It's all my father's mother's flesh and blood, and I don't want to lose any of you again.

I'll take you out, and then I can bring you all back, that's the best victory. ”

The generals were all embarrassed. Especially Batu. Gao You's subordinates died the most in the first battle, and almost half of them were killed in battle. There are several scars on Batu's body, and they hurt from time to time every time it rains on a cloudy day. It can be said that the battle gave him unforgettable pain, and this is still the result of relying on guns and sabers. If there is no advantage of riding a gun and a sword, it is really difficult to say what the victory or defeat of Gaoyou will be.

"Well, the construction of the equipment is responsible for the old man. The training of the cavalry was in charge of Batu, and the villagers were handed over to Dai Yu and Goshawk to be in charge of training. Dai Yu is responsible for teaching swordsmanship and spearmanship, and Goshawk is responsible for teaching archery. In addition, let them get on the carriage and walk around Lintong two more times. Feel what it's like to ride in a carriage, don't wait until you get to the battlefield to experience it too late. ”

"No"

The generals agreed with a bang, this is a major matter related to their lives. No one dared to be sloppy, and each went down to prepare according to Yun Xiao's instructions.

It was just the end of July, and there were at least three or four months left before the start of winter. If the Huns wanted to attack, they had to wait for the autumn season of high horses and fattening, hoping that their preparations might work. The Han army's Yunxiao can't control it, and he still has the final say on the guards under his command.

Either way, get ready. I hope I guessed wrong, the Huns just bluffed and wouldn't really make a mistake.

Yun Xiao walked around the study like a donkey, racking his brains to think about the problems he would encounter if he went out to fight against the Huns. Ability to maneuver, ability to run. There are also equipment, utensils, horses, and so on. Everything is in my head.

Looking at the map on the wall, Yun Xiao was worried, the long Han-Hungarian border. From Liaodong to the Western Regions, it is thousands of kilometers long. Everywhere there are places where the Xiongnu may break through, unless Yun Xiao is an immortal. Otherwise it is impossible to know where the Huns will attack.

Looking at Yun Xiao, a flash of inspiration suddenly appeared in his mind, since there is a target everywhere. Then get a target that gives them a headache and let them fight.

There are still four months to go, and time is a little tight. However, if it is implemented, it should be too late.

"Cangxiong went to Chang'an and asked Tian Lang to come over."

"No"

You need to be as low-key as possible and hibernate as much as possible. Tian Wei is a guy who can be used, so let him go to this chapter.

At dusk, Tian Wei followed the bear to the Yun family.

"Brother Yun, why are you in such a hurry to find me?"

Tian Wei had never seen Yun Xiao so anxious, so he hurriedly stepped forward to ask.

"Brother Tian, it's naturally a good thing that I came to you. It's a big credit to you. ”

Yun Xiao pulled Tian Wei to the front of the map, pointed to the map and said, "Luliang Mountain, Yin Mountain, Helan Mountain." The south bank of the Yellow River, sandwiched by these three mountains, is called the Hetao.

When the Xiongnu occupied the Hetao, they could attack Longyou and Guanzhong at will. Especially in the Guanzhong region, the Xiongnu cavalry could pass through the Guò Hetao to take Chang'an. All along, the Hetao has been a sharp sword hanging over my big man's head.

I have a way to get rid of this sharp sword, I wonder if Brother Tian can smell it? ”

"To be able to take the Hetao back from the Huns is a great achievement. Brother Yun really wants to give this credit to his brother? ”

"I like to talk to smart people, and the Yun family is too focused now. I am Ba who has to show his face in the court, and after thinking about it, I still let Brother Tian receive this credit.

You see, Yulin, Fugu, Shenmu. These three places are very close to each other, and there was originally a city here. Let's build the Great Wall to connect these three cities. But time is running out right now. Let's build three simple new cities in the middle of the three cities first, and then build the Great Wall after the Huns invade the border this winter.

The Huns were good at field warfare but not good at attacking fortifications, so we built it all the way down and relied on the city wall to operate within a radius of three or five miles. In this way, in a few years, the Huns will be squeezed out of the loop by us.

By that time, the Hetao area was full of forts. Even if the Huns invaded again, there was no way but to gnaw a little bit. Speaking of defending the city, our Han army is still afraid that they will not succeed. ”

Yun Xiao's method is very simple, it is the castle tactic in the Age of Empires. One by one, I will support each other and all the troops will fight around the castle until we reach your house. The siege tactics of the Huns were limited, and even the practice of the Great Wall was not afraid of being besieged to death. This style of play can give the Huns a headache and hit the wall.

"But this method seems to be too draining of national strength, and it was the Qin Emperor who emptied the empire's treasury because of the construction of the Great Wall. In the end, the lead will fall apart, will this be ......"

I didn't expect this Tian Wei to have some vision, and he actually understood the war economy.

"Brother Tian is too worried. Let's not build in a hurry like Emperor Qin, let's build little by little. Build a mile, consolidate a mile, occupy a mile, and then build it in front. This is a long-term project, and it is impossible to start construction at the same time as many times as the First Emperor, leading to excessive loss of national strength.

Moreover, the place we want to build is not on the long Han-Hungarian border, but just a place in the Hetao. ”

"What Brother Yun said is very reasonable, I will go back to study overnight. Strive to start construction as much as possible. (To be continued......)