After Zhao Yun vetoed Wei Yan's suggestion of "dividing troops to attack the Dragon Band along the coastal route", it meant that Shi Xie's second brother Shi Yi who stayed in the direction of Hepu would be directly surrounded by Zhao Yun and did nothing. And the troops of the fourth brother Shi Wu in Yulin would be subjected to a resolute and full force.

That morning, the sun was not rising very high, so the Han army launched an offensive early. The gravel splashed from the stone casting cart fell like rain, smashing the Shijia army, who were lined up behind the rammed earth and wooden stakes, and bloodied.

Zhao Yun's troops used this time, the number of catapults used by the Han army is more exaggerated than the previous battles of the Han army. It is obviously fully prepared in recent months. Moreover, many of the catapults used by Zhao Yun are miniaturized, lightweight, relatively portable, and can move as a whole. Although the range and power have become many times smaller, most of them cannot break the city walls, they are still more than enough to kill people with grape bullets.

Zhao Yun has also concentrated the emergence of this kind of thing in recent months. He has concentrated the craftsmen in the army to bring out his own needs for the craftsmen to discuss and see if it can be realized. Because the improvement is relatively small and there is no epoch-making innovation in principle, the craftsmen have also made it according to the needs of the Party A, after all, it is just a variant.

If time travelers could see the miniaturized new stone catapult that Zhao Yun took out, they would definitely feel strange that this thing was not the same as the mobile stone catapult used by the "Puxijun" in the Song Dynasty in history. They could only throw two or three kilograms of small stones at a time.

Of course, in history, the Xixia people's Po Xijun was a camel carrying a torsional catapult with elastic energy storage, while the one Li Su had already produced a lever weight-type catapult, which was more advanced than the Xixia people in history. Now Zhao Yun needs to improve it, of course, it is also miniaturized based on the lever weight-type, so it is not exactly the same as the Xixia goods.

The technical content of the lever weight type is equivalent to that of the late Song and early Yuan dynasties, and it is more advanced, and the difficulty of miniaturization of the version is naturally controllable.

The dense rain of stones smashed the city to tears and howls. Countless archers holding poisonous bows and arrows and wearing linen clothes tried to go up to the wall to fill the gap left by their comrades after their death, but were soon suppressed again so that they could not raise their heads.

However, in order to ensure that these archers of the Shi Family Army did not stay away from the city wall to avoid stone rain, the Han army also maintained a certain tentative melee troops, and people rushed to the city with big shields at all times.

Some Han soldiers wearing light armored soldiers often foamed at the mouth quickly because their shields were not covered tightly enough.

Only those heavy infantry wearing iron armor and shielded their faces and hands can still be shot in the venomous arrow bows of the hemp fibers and still be fine. But even so, their appearance is still very terrible. Some soldiers retreated, their shields were covered with iron frames and their shields, which were denser than porcupines.

And the soldiers wearing iron armor have several very painful points:

The first thing is that it is too hot. Even if the temperature has dropped below 30 degrees in the twelfth lunar month, put on the lining of the thread underneath and cover the iron armor on the outside, and have to fight fierce activities. It is as hot as it is caught in sweat in less than half a quarter of an hour.

Secondly, when taking off the armor, you must prevent the sudden release of the stuffy heat and cause the armor removal wind. Because too much sweat is more powerful than taking a bath, the flower dew that has been applied to the ground to prevent mosquitoes before the war has completely failed. These precautions must be applied immediately. They were summarized after Zhao Yun's failed tentative attack two and a half months ago.

That time, some soldiers who were bitten by insects infectious diseases were wearing iron armor and sweating too much without deworming water. Later, they became the source of fever infection in the camp.

Zhao Yun didn't have that much flower dew water to all the soldiers once every hour, so it was set as "Iron-armored soldiers should apply deworming water after each armor removal. Those who do not wear iron armor may not use it."

So from this perspective, although that aggression was caused by Lu Su's instigation and could not hold back, resulting in the death of more than 400 Jingzhou soldiers in vain, at least he summed up the experience and lessons and learned the precautions for fighting in the tropical rainforests of Guangdong and Guangxi.

However, Shiwu did not know that the Han army learned so quickly. He was still immersed in the experience of "How to kill the northern troops" taught to him by his second brother Shi a month ago, and he was inevitably underestimated.

...

Although the attack in half a morning did not break the city, it also caused considerable casualties among the Shi Family Army, and the exchange ratio was very ugly.

Seeing that it was about noon, the Han army suddenly cancelled the offensive, neither threw away the stone nor rushed, and retreated to the camp for a lunch break for two hours, and wanted to fight again without Shen (3:00 pm).

This is obviously a manifestation of learning lessons. It is like migrant workers on construction sites in later generations who built houses on hot and sunny days. They could take a nap for several hours at noon and do it hard when it was cool in the morning and evening.

This morning, the person in charge of supervising the battle at the city wall was Shiwu's nephew Shi Hui. Shi Hui was also very tired. He drank two pots of cold water from tons to tons, and complained to his uncle while he came back from lunch break to discuss whether he would do another place.

Shi Hui complained: "Uncle, Zhao Yun's offensive is too fierce. He also distributed iron armor to local people and soldiers who adapt to the local climate in Jingnan. He rewarded the local people and soldiers to serve as the first to attract our poisonous arrows, so that our crossbowmen dare not go down the wall to avoid it. He shot and injured our army from a long distance.

This is not a solution. It is still a rush to the water here. The Han army's supplies were so convenient. Arrows and stones were transported from Panyu along the river, and our soldiers were smashed to death."

Shiwu was quite surprised when he heard this, because what his nephew said was completely different from what he heard from his second brother: "You mean, Zhao Yun's arrows and stones were much more intense this time?

How could it be? In August, my second brother saw a large number of crossbows in Jingzhou soldiers. Those Yankees thought that the power of the crossbow was far stronger than our slaughter and poisonous arrows, and they could bully our Southern Army. As a result, the crossbow string was damp and was scrapped in just a few days?

Zhao Yun has not learned his lesson. We must withstand it. After these days, when all the beef tendon strings in his army are damaged by the dampness, it will be time for our poisonous arrows to show their power again."

It turned out that the reason why Shiwu had the courage to defend Yulin at the beginning was that Zhao Yun's failed test gave him the confidence. They knew a weakness in Zhao Yun's army's ordnance supply: Anyone who uses animal tendons as weapons for elastic potential energy storage is the most afraid of the extremely humid and hot combat environment.

When Liu Bei's army attacked Nanzhong, there was actually such a trend. Many crossbows with beef tendon strings were greatly reduced. The reason why the locals in Nanzhong used hemp fiber to twist the bows into strings was, on the one hand, the Nanman machinery manufacturing level was not as good as the Han people, and on the other hand, the climate determined that the crossbows were too short.

But after all, the humidity and heat in Nanzhong are still not as good as in Jiaozhou, and the Kunming Basin is still relatively dry and pleasant in the climate. So the Han army's powerful crossbows lasted until the end of the battle, even if the strings were scrapped after the war.

This time, the Han army was proud of, and as the first weapon to fight against the barbarian Rongdi for hundreds of years, the crossbow was finally completely abolished in the wet and hot Jiaozhou battlefield.

Zhao Yun has no crossbow and cannot poison the arrows of the bow and arrow. Wouldn't he be at a disadvantage? What else can he attack?

If Li Su could personally supervise this battle and learn about this detail, he might have sighed: so many full-war games I played in my previous life, it was true that "Rome: Total War" in the early years was quite realistic in terms of weapon weather. In the Rome, the full-war battle, it was set to be unusable for torque catapults and torque crossbows in rainy days.

In fact, this is why Zhao Yun had to leverage the small-scale stone catapult after he was prepared. If he also used any torsion equipment that required the elastic potential energy of animal tendons, it would be scrapped in such a humid and hot environment.

The leverage type does not have this problem at all. Its energy storage components are all rigid structures and rely on gravity potential energy emission.

Therefore, Shiwu's confidence became ridiculous in the eyes of his nephew.

Shi Hui said with a heartache: "Uncle Fourth! Where did you have confidence? The deployment of the ordnance that Zhao Yun exposed today is completely different from what you imagined! You should go and take a look at it yourself!"

Shiwu then half-believed and half-doubted, and went to supervise the battle and witness it himself, and then he was secretly surprised.

Zhao Yun only prepared for two days, and there were so many attack methods and so many more catapults.

Shiwu was shocked: "What should I do? Why did he have so much money and food so much? Aren't the catapults all made on the spot? For a lush forest, can he still dismantle them and transport them to the dragon woven?

It's impossible. At most, it's a boat ride along the Yu River, but there's no river after arriving at Lang San. No matter how small the catapult is, it's like a suicide by carrying it over the mountains and through the forests. He just invested so much money to destroy our Yu Lin army?"

Shi Hui said anxiously: "Since that's the case, if Yu Lin cannot defend, we have made plans to lead some troops to break through and retreat? Now Zhao Yun is eager to siege the city, but at least there is no extra force and ships to completely block the Yushui River. If he blocks it, it will be even more difficult to break through again."

Shiwu raised his hand: "You can't hurry! Although there are many casualties in the city today, we can withstand such consumption at least ten days and half a month. The older brother and the second brother don't know about Zhao Yun's improvements. Their confidence is based on Zhao Yun's experience of retreating due to the plague two and a half months ago.

We must seek time for them to adjust the deployment, and torture Zhao Yun's spirit and consume his supplies. What's more, we have almost no cavalry, and the ships are not enough to transport everyone away at once. If we retreat now, wouldn't the extra troops collapse in morale and all the enemies will become Zhao Yun's soldiers?"

Shi Hui took a breath slightly. He, the fourth uncle, really didn't take human life seriously. For the sake of the great cause of the Shi family, the soldiers who could not take away would rather spend their lives with Zhao Yun's soldiers and delay time.

Although strategically speaking, cold storage areas are not mixed with human nature, it is the right choice.

Moreover, the Shi family really needs to delay time and adjust their deployment and see Zhao Yun’s entire offensive strategy.

After thinking it through, Shi Hui sighed and asked: "Even if my uncle said it is right, how can we continue to hold on to it? Today, we have a bloody battle. Although our army is guarding the city, the damage is many times higher than that of the enemy.

At most dozens of people died in the enemy's armored soldiers. In order to prevent them from getting onto the wall, our crossbowmen were killed by the gravel rain of the catapult. If this continues, morale will collapse in a maximum of two or three days."

Although the absolute number of dead people is not large, the situation of only being beaten but not fighting back is too harmful to morale.

Shiwu was also in pain. After thinking about it, he came up with some self-deception words: "Tell the soldiers that Zhao Yun's catapult is like a bed crossbow. He requires the elasticity of the beef tendon to provide archery force. After a few days, it will inevitably be decayed by hot flashes. Let everyone endure it in a few days.

Moreover, Zhao Yun thought there were fewer mosquitoes in winter and could be besieged for a long time, but he did not know that there were fewer insects in winter and poisonous. Northerners would not understand this. There were only two types of mosquitoes. One was frozen to death in the first winter, and the other was that as long as you could survive one winter and overcome this hurdle, you could survive several winters in a row.

Although the weather is a little cooler now, most of the mosquitoes born in those days have died and are dormant. All that remains are essences, and it may be possible to infect the epidemic with just one bite. We have survived this most difficult time, maybe Zhao Yun will be poisoned countless times by mosquitoes again."

Shi Hui blurted out: "It seems that Zhao Yun's stone catapult does not use beef tendon."

Shiwu was so anxious that he waved his hand like "The Fighter of the Head of the Army": "Didn't I let you deceive soldiers like this? You understand those foolish people but don't understand. Isn't it better to deceive them for a few more days? Besides, the second mosquito is real."
Chapter completed!