As soon as the sky was bright, Lu Rui put on his iron rattan armor, took the rattan armor shield to protect his head, and walked towards the Chinese military tent.

As soon as he entered the military tent, Lu Rui was stunned, everyone actually had different degrees of abrasions, and even the cheeks of the soldiers around Cao Cao seemed to have new marks that had been rubbed by bows and arrows.

"See the lord!" Lu Rui arched his hand and saluted Cao Cao.

Cao Cao nodded and motioned for Lu Rui to sit down.

"Did you sleep well last night?" Cao Cao looked at everyone with a tired face, and slapped his mouth.

As soon as Cao Cao's words fell, everyone complained. The Yuan army not only fired at the Cao army's barracks every other hour during the day, but also at night, Cao Jun's generals and sergeants were all deeply affected, many people were injured, the most important morale was damaged, many people were disturbed and couldn't sleep well, how to fight with energy?

"Ladies and gentlemen, Yuan Jun's mound encirclement has a great impact on our army, I don't know what your clever plan is to break Yuan Shao's mound encirclement?" Cao Cao was also disturbed by the siege and harassment of Yuan Shaojun, and one day, he actually became tired.

"This?" Everyone looked at each other and whispered to each other, but there were no actual suggestions.

"My lord, Rui thinks that since our army can't win tactically, can it win with equipment?"

"Win on the device? Extraordinary and meaningful"

"The lord ordered Liu Ye to make weapons in Xududu, has he developed a new sharp weapon, and has the range of the bow and crossbow been farther away? If our bows and crossbows can hit the Yuan soldiers on the earthen fort, our army can counterattack. ”

"What you say is reasonable, someone quickly wrote to Xu Du to stay in Xun Yu, explain the situation here to Xun Yu in detail, and see if the wise and resourceful people who stayed in Xu Du have a strategy to break the enemy!"

"No!"

Three days later, Liu Ye came to Officer Cao's military camp. "Liu Ye see the lord!"

"Ziyang is here? Sit! Cao Cao was overjoyed when he saw Liu Ye coming.

"Thank you, my lord!"

"Ziyang is here to offer a strategy to break Yuan's army for this Sikong?"

"Exactly! Lord. The subordinates improved the stone thrower of the Spring and Autumn Period and the Warring States Period, named the trebuchet, which can break the Yuan army's earth city! ”

"Zi Yang is really the blessed general of our army, quickly take this Sikong to see what sharp weapon Zi Yang has created?"

"Lord, please come with Liu Ye!"

Later, under the leadership of Liu Ye, Cao Cao and others came to the school field of Cao Jun's military camp.

"Lord, this is the trebuchet after the improvement of the treult!" Liu Ye pointed to the large siege equipment in the school yard and displayed it like everyone.

Cao Cao stepped forward, turned around the trebuchet a few times, then looked at it and said, "Ziyang, can this thing really break Yuan Jun's earth city?" ”

The rest of the Cao army generals also showed puzzled eyes. They had barely seen this thing, and Liu Ye dared to guarantee that this seemingly huge thing could break through the fortress of the Yuan army?

Lu Rui looked at everyone's puzzled eyes, and smiled in his heart, Qin Shi Huang burned books and destroyed many books, and the siege equipment of the Spring and Autumn Period and the Warring States Period actually became a rare thing in the Eastern Han Dynasty. It seems that a lot of the essence of Chinese culture has been lost in this way, do you want to find a way to change this situation?

"Extraordinary?" Lu Rui was pondering. Cao Cao called Lu Rui.

"My lord?" Lu Rui was pulled back by Cao Cao.

"Do you think this device will be successful?" Cao Cao was not sure whether Liu Ye's equipment would be effective. It's not that I don't believe Liu Ye, but if Liu Ye's trebuchet doesn't achieve the expected effect, it will be another blow to the military's heart!

"Lord, his subordinates think that suspicious people don't need to be used, and they don't suspect in employing people, let alone the lord. Now it's hard to ride a tiger! Lu Rui whispered to Cao Cao, and then swept the soldiers next to him with his residual light.

The soldiers and soldiers of Cao Jun next to him all looked at the catapult with hopeful eyes, this was their hope, and the harassment of the past few days had made Cao Jun unsettled. Especially in the heart, peeing will lose your life, and anyone on the stall will have a lot of pressure in your heart.

Cao Cao glanced at the sergeant and knew that it was powerful, Cao Cao nodded and said, "Okay, let Ziyang try!" ”

"Ziyang, let this company see the power of this thing!" Cao Cao turned around and gave an order to Liu Ye.

"No!" Liu Ye ordered the trebuchet to be set up on the platform of the hill behind Cao Cao's military camp, and then Liu Ye led Cao Cao to climb the hill where Cao Ren's main tent was located, where Yuan Shao's mound fortress could be seen in the distance.

Cao Cao looked at Yuan Shao's mound fortress, his brows furrowed, and Yuan Shao's soldiers began to climb the fortress again, and they were about to start shooting Cao Ying.

"Lord, Yuan Jun has begun to encircle and shoot at our army again!" The herald reported to Cao Cao.

Cao Cao and the others looked at the barracks under the mountain, and the soldiers of Cao's army began to resist with their shields again.

"Ziyang!"

"Please rest assured, my lord, Yang let Yuan Jun see the strength of our army."

"Herald!"

"No!" Liu Ye's own soldiers waved the order flag and gave instructions to the soldiers of the catapult.

"Launch!" The soldiers of the catapult pulled the mechanism, and boulders flew from Cao's rear camp to Yuan Shao's mound fortress.

"My lord? What is that? ”

Soon, Cao Jun's boulder reached the sky above the Yuan Jun's fortress, and before Yuan Jun could react to what it was, a dozen crossbowmen were hit by the boulder and fell off the platform of the fortress.

The boulder had a great impact, and each piece hit the fortress with a loud bang, and the sound shook the sky.

"Damnation is coming, damnation is coming!" Many of Yuan's soldiers thought it was the mountain god who was angry and began to flee in panic.

"Hahaha!" Cao Cao looked at Yuan Jun's embarrassed appearance on the hillside, and showed a long-lost smile.

"Ziyang? This catapult is really powerful, Yuan Jun fled in all directions, with this sharp weapon, why worry that Yuan Jun is not broken? ”

"Keep firing!" Cao Cao excitedly gave an order to Liu Ye.

"My lord? It cannot be launched at will, and can only be launched when Yuan's army suppresses our army. Liu Ye arched his hand and suggested to Cao Cao.

"Why? Not enough catapult distance? ”

"No, my lord, the catapult, since it is a car, it must be a movable thing, and distance is not a problem."

"Ziyang, is it taking too long to launch, if so, Rui can try to improve?" Lu Rui thought that Liu Ye had a technical problem, and he had a way to shorten the launch time!

"Definitely, Master Hou, Yezhi's catapult, the launch interval is only between raising hands, and the time is not too long!"

Between the hands raised? That's on par with the slings of later generations! Lu Rui looked at Liu Ye in surprise, without the assistance of Ma Jun, Liu Ye could achieve this level, and he was an inventor!

"Ziyang, then why do we have to wait for the Yuan army to attack, and our army's catapult can be used?"

"Lord, that's because there are not enough boulders!"

Liu Ye broke through the heavens in one word, near Guandu, especially near Cao's military camp, there is a lack of boulders, although it is a hilly landform, but there are not many boulders, many of them have to be excavated by soldiers, this is a huge project.

"Zixiao, quickly order the sergeant to dig a boulder for our army!"

"No!" Cao Ren took the order and left.

A day passed, after Cao Ren left the garrison soldiers, the rest of the soldiers were used to dig boulders, but at the end of the day, only less than a hundred boulders were collected, which was already the limit, but this boulder could only launch less than five rounds of counterattacks, and the number of rounds of Yuan Jun's encirclement and shooting was twelve times a day!

Yuan Jun's barracks, Yuan Shao had just had dinner, and he invited the civil and military to discuss the military situation.

"Strategist, what is the boulder flying out of Cao Jun's barracks?" Yuan Shao glanced at him, Yuan Shao didn't believe in any mountain gods, but now rumors are spreading among Yuan Jun.

"My lord, after observation by my subordinates, there should be trebuchets in Cao Jun's army!"

"Trebuchet? What is this? Yuan Shao asked Fu Zhi suspiciously.

"Lord, the trebuchet is a device created by the ancestor of the Warring States Morale Li Guang, which can launch boulders, and once blocked the Qin army from attacking the Chu State, and the Qin army of 600,000 wiped out Chu, most of them were blocked by this device!"

"Meng De actually has such an artifact? Do you know how to make this artifact? When Yuan Shao heard that Cao Cao had this kind of weapon, he immediately became interested, Cao Cao had such a sharp weapon, why couldn't Yuan Jun have it?

"Please forgive the lord, although my subordinates know this equipment, but they don't know how to manufacture it, if our army breaks through Cao's army and captures one, it may be able to develop it."

"Alas, I don't want Cao Jun to have such an artifact, military advisor, how should our army deal with it?"

"Please rest assured, although the trebuchet is powerful, it has its limitations, the boulder is difficult to obtain, according to the observation of his subordinates, the Cao army poured the strength of the whole army, and the boulder obtained in one day is only to counterattack the six rounds of attack of our army, but our army can carry out twelve rounds of shooting on the Cao army, and within half a month, the morale of the Cao army will be destroyed!"

"Okay, I'll leave this matter to the military advisor!"

"No!"

"Master Hou, I'm bringing you food!" Although Cao Jun's trebuchet could alleviate Yuan Jun's attack, Yuan Shao used his superior forces to increase the number of rotations, and Cao Jun's actions remained unchanged, and Lu Rui was thinking about how to deal with Yuan Shao in the barracks.

"Put it down!" Lu Rui ignored his own soldiers, and was still studying how to deal with Yuan Shao's strategy.

"How many days has Yuan Shao besieged our army? So many bows and arrows? Doesn't Yuan Jun's military capital need to be produced? Even if it is produced, how can it be transported to Guandu? ”

"Wait! Am I overlooking something? ”

Lu Rui picked up one of Yuan Jun's bows and arrows, observed it carefully, and a smile appeared on his face, I see! (To be continued......)

PS: (Second update, thank you for your great support!) ）