"This is not an ordinary catapult, it has been specially improved by me, and its effect is a little stronger than the current catapult, if it is a siege in the future, it should be a little helping!" Lu An said with a smile.

"The lord still understands this kind of craftsmanship?" Jia Xu said in surprise.

In this era, the status of craftsmen is not very high, although Jia Xu doesn't know what Lu An's level is, but he can improve the catapult, he should have a high attainment in this area, which makes him feel that Lu An is a little upside down, if ordinary people know a little bit of this kind of craftsmanship, it is a good thing, and they can support their families, but in terms of Lu An's identity, he should not spend time in this regard, but he is an old fox, although he feels that Lu An spends time on such strange and obscene skills, but he will not say it, Anyway, Lu An has always been quite self-disciplined, and he doesn't seem to need to be reminded. Of course, Jia Xu absolutely didn't know that Lu An had never worked this, and even the drawings had only been constructed within a few days, otherwise he would not have thought so.

"I don't understand, but I just have some ideas in my heart that I want to make it happen!" Lu An said softly.

Coincidentally, he has always been very interested in history in his previous life, when reading the history of the Song Dynasty, he found that the most appeared in it is the war machine of the catapult, at that time he was interested in this ancient cannon, and specially went to turn over the Wujing General Essentials for this purpose, and understood the production method of the catapult, the catapult of the Song Dynasty compared to the Three Kingdoms period, it has been improved many times, the power has been increased many times, and the action is also very convenient, presumably in the Three Kingdoms period can play a very good role in siege.

"Dare to ask the lord, how many steps can this catapult make? How much do the projectiles weigh? Jia Xu took a closer look at the catapult drawings, and indeed found that the catapult structure on it was different from the ordinary catapult structure, so he asked with a little curiosity.

"It's about nearly 400 steps (more than 700 meters), and the stone bullet should be able to hold about 90 kilograms!" Lu An didn't confirm the way. In fact, the catapult of the Song Dynasty was not so sharp, it could only send a distance of 500 meters, and the live ammunition could only hold 50 kilograms, but this Three Kingdoms era was obviously an alienated era of high martial arts, not to mention the super force of top generals such as Lu Bu and himself, even the small soldiers were all extraordinary, and they were comparable to the fierce men of that era in later generations, so Lu An could only estimate it.

"Shhh Jia Xu suddenly gasped, if there is really such an effect, then where is the improvement a little bit, it is clearly a world of difference, I am afraid that once this thing comes out, it will shine in various siege battles in the future, he did not suspect that Lu An was talking big, he still knows very well what the character of his lord Jia Xu is, he has always been true to his word, he said that the catapult can reach this point, then eight or nine are not far from ten.

"Hehe, tomorrow you go and gather all the carpenters in the surrounding counties, let them do their best to help us do this, do as much as you can, of course, don't force it, just say that we recruit carpenters, in addition to food, there is also a salary for them to settle!" Lu An smiled.

"My subordinates know!" Jia Xu arched his hand, very carefully put the drawings into his underwear, and then slowly retreated, before going out, he also secretly glanced at Lu An, and felt that it was really a little incredible, is there really such an all-round person in this world, the martial arts are famous all over the world, the literature can come out with a new deal, and even this kind of bizarre skill can have this kind of innovation, it is really unimaginable.

The next day, Lu An began to besiege the city according to the strategy discussed last night, blocking all the gates of Hefei City, preparing to fight a long war of attrition, on the other hand, he asked Jia Xu to recruit craftsmen everywhere to secretly make catapults for him to use in the future.

And Zhang Xun on the city wall, when he found that Lu An was only besieged and not attacked, he was also happy, but he was still heavily defended every day, and obviously had a deep vigilance against Lu An, for fear of falling into Lu An's scheme.

Time passed day by day, and this stalemate has lasted for two months.

Lu An is still very calm, in addition to discussing the military discussion every day, it is to see the construction speed of Jia Xu's catapult, anyway, the autumn harvest in Jiangdong and Jingnan in the past two years is good, there is no shortage of grain and grass for the time being, and Xuzhou's eldest brother Mi Zhu knows that Lu An is attacking the city in Hefei (Huainan is very close to Xuzhou), and secretly sent people to send a lot of grain and grass.

And Zhang Xun seems to be a little passive, they don't have much grain and grass in Hefei City, and there is not much left now, the sergeants are now thrifty with military rations, plus the outside of the city is surrounded by Lu An's army layer by layer, which has added a lot of strange atmosphere to the army, so that many soldiers who were already dissatisfied with Yuan Shu have lost their fighting spirit in their hearts.

Zhang Xun didn't think of a way to prepare grain and grass, but unfortunately in the end he found that this matter was difficult to carry out at all.

Let's not talk about the people in the city, the people who have already been made by Yuan Shu's brutality in the past few years have been miserable, and this year there has been another disaster, and many people have starved to death, and they can't get out of it with a little oil and water.

And the rich families in the city, because of Yuan Shu's claim to be the emperor, plus being besieged from several sides, most of the rich families don't want to give Yuan Shujun much help, even if some are willing to help, but because of this year's disaster, obviously can't give much support, this back and forth, the collected grain and grass is obviously a drop in the bucket.

Zhang Xun had the idea of robbing the family in the city, but unfortunately this idea in his mind dissipated immediately after a flash, he was not Lu Xuantong, and he could have such a bull fork ability. You must know that the ordinary people in this city have been dissatisfied with Yuan Shu's search for many years for a long time, and they are overjoyed when they hear that Lu Xuantong is coming to attack the city, and they wish that Lu An could immediately come in and rescue them from the sea of suffering, if these defenders still offend the family, then this city will not be held for a day.

There is no way inside, Zhang Xun has thought about foreign aid again, but unfortunately it is also a dead end, not to mention that Lu An surrounded the city so that it was difficult for even a bird to fly out, even if they could send a messenger to ask for help, but Ji Ling on the Huaibei side was about to be unable to stop Cao Cao from being sent down several cities by the other party, Sun Ce was still pinching each other with Lu Bu, and the troops under Yuan Shu's command were gathered on both sides, where did the reinforcements come from.

"There are only more than 20 days of food and grass left, so can you only go out to fight?" Today, after Zhang Xun checked the grain and grass warehouse again, he muttered to himself.

"Report to the general, there has just been another small-scale mutiny in the barracks, and now it has been suppressed!" A lieutenant came to report.

"How many people died?" Zhang Xun asked calmly. This is not the first time this has happened, it happened several times a few days ago, because of the lack of food in the army, and His Majesty is a little harsh on the sergeants on weekdays, so the atmosphere is tense this time, and there will be this kind of trouble.

"Casualties are approaching a thousand!" The lieutenant reported truthfully.

"So much?" Zhang Xun frowned, and finally made up his mind: "No, we can't wait any longer, we all go and gather troops, and I will go out of the city to meet the battle today!" ”

If it was possible, Zhang Xun wanted to keep it like this, but now that things have come to this point, if he doesn't go to war again, I'm afraid that when the food and grass run out in a few days, all the soldiers in the army will mutiny, and then he won't even want to fight.

The gate of Hefei City, which had been closed for several months, was finally opened today, and Zhang Xun led the defenders of the city to march from the city in desperation, preparing to meet Lu An, and this was the purpose of Lu An.

"General Zhang, is this the reason why the grain and grass are almost exhausted? You have less food and grass than I thought! Lu An looked at Zhang Xun who finally showed his head on the other side, and said with a little mockery. Frankly speaking, this was really a bit unexpected by Lu An, he originally thought that Zhang Xun's grain and grass could last for four months, but he didn't expect that he couldn't hold it now, and now in a head-to-head showdown, his killer catapult is actually useless at this moment.

"Hugh is talking nonsense, you and the other rebels actually dare to attack Your Majesty, if you know each other, hurry back to your Jiangdong, I can give Your Majesty advice to make you the king of Jiangdong!" was punctured by Lu An, Zhang Xun said a little annoyed. Although he knows how powerful Lu An is, he has a face, and he can't lose if he loses.

"Your Majesty? Which Majesty? I am a courtier of the Han Dynasty, and I only accept the canonization of my Han Emperor, what is Yuan Shu, but a traitor who does not know life and death also wants to take away my Han dynasty and ascend to the throne in vain? Lu An said righteously.

After that, his tone became very cold again: "General Zhang, if you dismount and surrender now, I can still spare you for the crime of following rebellion, otherwise you will not blame me for being ruthless!" ”

"Lu Xuantong, you are from a poor family, and you dare to insult Your Majesty?" Zhang Xun said angrily. As Yuan Shu's old subordinate, he still has a very high loyalty to Yuan Shu, so he is very angry at Lu An's contempt for Yuan Shu.

"Cavalry, follow me to assault!" Lu An lost interest in talking to Zhang Xun, and at that moment, the Qingyu Phoenix spear was raised and killed the enemy formation. And the first column of troops that followed him was the cavalry he had trained for many years.

There are no large pastures in Jiangdong and Jingnan, and the horses used by Lu An to form the cavalry are all exchanged for the passage between the Mi family and the Zhen family, especially the Zhen family, which is located in the land of Hebei to produce horses, plus Yuan Shao seems to be a little blind to this aspect, so the Zhen family has brought a lot of good war horses to Lu An, a cheap son-in-law, so many years, counting it bit by bit, Lu An finally has more than 15,000 cavalry, and this expedition, Lu An directly brought 10,000 out, which is considered to be a test effect