Inside the camp, the swarthy muzzles of the guns were pointed diagonally upwards and towards the sky.

"Put"

Cao Jie's loud voice sounded, like a thunderbolt, exploding in mid-air.

The next moment, He Wu, who was standing next to the swarthy ballista, waved his hand and pulled the long rope that pulled the ballista's bowstring.

"Buzz"

There was a loud sound of the air trembling, and a thick arrow burst out of the muzzle of the cannon and flew diagonally upwards into the sky.

The thick arrow pulled a parabola diagonally in the air, and fell far away into the shelter of the camp and the mountains and forests, and was never seen again.

Su Lu narrowed his eyes, yes, these boys have already made such a ballista, but they don't know how powerful it is, don't fall to the ground and be like a big wooden stake, no.

"How far can this crossbow bolt hit?"

Su Lu asked He Wu, who was operating the cannon, and said.

When He Wu saw Su Lu at this time, his face changed, and he hurriedly gave a military salute and spoke.

"Back to the commander, the tension of the ballista bowstring is different, and the distance that can be pushed is also different, the position of the fourth level just set, such an arrow, the normal projectile distance should reach six miles away, within eight miles."

Su Lu nodded, kicked the swarthy ballista with his foot, and asked, "It's made of wood, how did you get it black?" How far can you shoot at such a length? ”

Dani was holding rice paper in her hand, bending down to look at the bowstring, and replied excitedly when she heard this: "Fortunately, it can hit twelve miles away, and the target is not easy to calibrate, it takes several calibrations to hit the target left and near." ”

Cao Jiehe, who was next to him, smiled: "Commander Mingjian, we have fought less often, and we have military orders in our bodies, so we didn't dare to build more ballistae like this, but we just made more ballistae with a closer firing range, which is enough to arm our ballista battalion." ”

Su Lu nodded: "Who came up with this idea to build a ballista that can hit such a distance?" ”

Dong Ling said beside him: "This is my light, last time I mentioned to Dani, if our ballista shoots far enough, the birds of the Taixi people will be shot down by us before they get close, how good it would be." ”

Dani next to her smiled shyly: "We just thought about building some ballistas with a long enough range." ”

Su Lu nodded, and commanded: "The idea is good, but our big battle with the Taixi coalition army is about to start, and there is no time for you to continue research and development, so you are all integrated into the army, carry this ballista and walk with the Chinese army, and come to calibrate and adjust in actual combat." ”

The three of them took orders together.

Three days later, the Han army was drawn one after another.

The Left Route Army and the Right Route Army set off at the same time, divided their troops from the South Road and the North Road to Beishan, swept away the remnants of the barbarians in Beishan along the road, and joined forces with the Middle Route Army to attack Beishan City ten days later.

Hua Xuntong led the Chinese army, took the first step, and rushed straight to Beishan City.

Su Lu unified the army later, but because of Su Ge, Li Qing sent a large number of internal guards to protect Su Lu's safety and resolutely prevent Su Lu from going to the front again.

Su Lu had no choice but to lead the Chinese army to follow.

There are quite a lot of remnant barbarians along the road, and one or two barbarians can kill a large number of human races, occupy villages and towns, and use people as food, just like the ancestors of villages and towns.

The speed of Hua Xun's unified army was slowed down by sporadic barbarians, although there was Yingyuan Tong who led the vanguard army first and swept away some barbarians, but there were still many barbarians who were missed and faced the army.

This is inevitable, the barbarians have been defeated several times, and there are many remnants of the forces that have fled in the middle, and now the territory of Qin Land is full of remnant barbarians.

Ten days later, Hua Xun, who was in a hurry, finally arrived at Beishan City.

They set up camp fifteen miles away from Beishan City, blocking the possibility of the barbarians fleeing to the east, and at the same time occupied the high ground and began the test firing of new ballistas.

"Buzz"

In the camp, the days of daily rotation shooting, Dani He Wucao and a group of people were busy, according to the data fired, recorded the cooperation of the ballista and the crossbow arrow, leaving first-hand data, for the future improvement of the ballista, to find a new direction.

On this day, the sky was slightly bright, the torches and lanterns in the Han army camp were lit, the gang leader army had already begun to cook vegetables, and all kinds of fragrances began to waft over the camp.

When Su Lu came out of the camp, he saw that Cao Jie and He Wu were already busy around the ballista, wiping the yellow sand stained on the ballista, opening the box of the ballista, and wiping it carefully. Many of the surrounding ballista battalion sergeants did the same thing.

There is a lot of wind and sand in the west, and every time the wind blows, the sky is always covered with yellow sand, and the ballista is always covered with a layer of sand, and if it is not cleaned up, the crossbow arrows cannot be fired.

After breakfast, the generals began to train the army and prepare for a big battle with the Taixi coalition army.

On the opposite side, the barbarian army has been prepared, and the various formations have begun to move slowly, and in the middle of the sky-rushing evil qi, the golden drums are ringing in unison, the gongs and drums are noisy, and the barbarian attack has begun.

"Ballista battalion, prepare for a salvo."

Su Lu instructed Cao Jie, who was operating the cannon, to speak.

The distance between the two armies is now more than ten miles, which is a good opportunity for ballistas to educate the barbarians on human beings.

"Buzz"

The bolt pierced the air, and in the dull sound of air trembling, a thick arrow shot diagonally upward.

Behind the barbarian brigade, Su Buze was arguing with Liwut, and neither of them was willing to step forward, wanting the other to come forward.

"I can't do it, I've fought with the Han army for so long, and I haven't won at all, if I lead the army this time and lose to the Han army again, it will hurt the morale of my army too much, or Liwut you go."

also quickly pushed out the responsibility.

Lewut had a chill on his back, this damn thing, this grandson is not only a crow's mouth, but also good at shirking responsibility, no, he must not fall this unfortunate task on his head.

"I can't either, I don't have any level, the Han army is strong, if I take command, this time it will definitely be defeated."

"Boom"

Not far away, a tent was smashed open, and it was a mess.

The camp was in shambles, several barbarians had been punctured into flesh, and there were still two Tessie people alive in the camp, but looking at their expressions, it seemed as if they were scared silly.

He shrunk his neck and said fearfully: "The Han army is too strong, we will still lose miserably this time." ”

Levut jumped to his feet and said, "Look, here again, here again!" ”

"This time they are aiming at the camp tent, if they target us next time, you and I will not be able to stop this thing."

also Su Buze felt a pang in his heart, and looked at Lewut, and they both smiled tacitly.

Lewut turned his head and instructed his subordinates: "Pack up your things and prepare to withdraw, we are going to be defeated." ”

In the Han army, Cao Jian looked at the camp tent destroyed by crossbow arrows in the distance, and said to He Wu behind him with a scolding:

"Damn, what Lao Tzu aimed at just now was those barbarian leaders, how did they run to the camp tent behind them, it's really damn unlucky, can this thing be accurate."

He Wu's face was also flushed, "Fuck it, let it go first, just kill someone." ”

"Hey, what is the movement of the barbarians, as soon as the battle is engaged, why did the generals of the rear army begin to shrink."

In the shocked eyes of the two, they saw the opposing barbarian rear army, the two leaders with their subordinates, had begun to retreat.