The retreat of Pingjiang Camp was ordered by the naval commander Wang Jun, but the Shu army was unaware of it. They only thought that the Wei army retreated due to the attack.

In fact, the attack of the siege is often only tentative and will not give its all at once. Only after finding out the strength of the defending party will it destroy heavy troops and launch a strong attack.

So even if the Shu army had repelled the Wei army's attack, they were far from complacent, because the more difficult battle was still waiting for them.

But what the Shu army did not expect was that the Wei army suddenly changed its attack method and used a catapult to attack.

At this moment, there were quite a few Shu soldiers on the top of the city. After the battle started, all the Shu soldiers were on duty. In order to strengthen the defense of the south gate, Jiang Wei specially drew some troops from the east gate and the west gate to support the south gate. Therefore, the Shu soldiers had more defensive forces on the south wall than at any time.

The Wei army's attacks of the catapults were often very sudden. Just when the Wei army's siege troops had just retreated and had not even left the base of the city wall, the stone bombs shot out of the catapults of the catapults were already coming one after another.

If this kind of stone bullet the size of a bowl destroys the city wall, it will be a bit difficult. If a stone bullet hits the city wall, it will only make a pit at most. If you want to shake the main structure of the city wall, it will be a little bit short of time.

Therefore, when the catapult driver aims, they basically smash the rock bullets at the top of the city. They will never aim at the city wall to attack. In other words, the target of the catapult this time is a person, not a wall.

If these stone bullets really deal with people, the damage is more than enough. If the stone bullets with a sized bowl are not like playing to kill someone.

Unlike fierce oil fire bombs, the damage caused by a single stone bomb is limited. The fierce oil fire bomb covers a wide area, and a fire bomb can cause a sea of ​​fire within a radius of one meter.

The damage area of ​​the stone bomb is almost equal to it itself, which means that only the place where the stone bomb hits will be damaged. In the best case, the stone bomb that lands will rebound or roll, which will cause secondary damage. Otherwise, only the Shu soldiers who land at the point will suffer.

In this way, it seems that there is nothing to be afraid of for a single stone bomb. As long as it can avoid its landing point, everything will be fine.

However, the Wei army would not attack one stone bullet and one stone bullet. All 50 stone casters were launched in a series of fires and launched attacks with all their strength. In other words, in a very short time, the Wei army could pour 500 stone bullets into the city of Xiling City.

Five hundred stone bombs were smashed down continuously, and it was like a rain of hail. The stone bombs roared in the air, covering the sky and the sun. The originally clear sky was a little dark at this moment.

At this time, the soldiers of the Shu army looked up at the sky, and they probably felt extremely desperate and collapsed in their hearts. A stone bullet might be easy to avoid, but so many stone bullets kept hitting over, how can you let them dodge?

In order to strengthen defense, the Shu army was almost full of people on the top of the city. When other defensive facilities were destroyed, the Shu army could only use people to support it.

Such a dense formation is the one that the catapult cart likes the most. As long as the stone bullet can fall on the top of the city, it will basically be shot without any flaws, and one or several unlucky eggs will definitely be hit.

The Wei army's round of stone bullet attacks was only a few dozen breaths. Their shooting accuracy is relatively high. The city wall is only a dozen steps wide, and the stone-cat driver can throw more than half of the stone bullets onto the city wall.

With the current overcrowded defensive formation like the Shu army, any stone bullet that lands on the top of the city will basically eliminate one or several people. After one round of attacks, the Wei army can take at least two or three hundred lives.

Such damage value is undoubtedly amazing. The Wei army initially used a powerful oil fire bomb, which only caused a few dozen casualties. The stone bomb, which seemed to be ineffective, could cause hundreds of people to be killed or injured by a single wave of attacks.

If this ratio continues, the Wei army only needs to smash a few thousand stone bullets, which will be enough to completely destroy the Wei army's defense line.

More importantly, the Shu army was unable to resist the attack of the Wei army's stone casting car, and could only be passively beaten. In order to avoid the attack of stone bombs, many Shu army could only look at the sky with their eyes. If they saw stone bombs flying in the air, they would dodge desperately.

Many people were hiding, so that there were crowds of people on the top of the city, and some people were squeezed down to the city, falling into blood and blood, and the city was in chaos.

But even so, many people are still unfortunately caught. After all, the formation of the Shu army is too dense, with people crowded, and if A hides, B will definitely suffer. C is lucky to be protected by God, and then D will embark on the gates of hell.

Therefore, under this indiscriminate attack, the casualties of the Shu army continued to increase.

After the Wei army finished the stone bombs in one round, the stone thrower immediately loaded the stone bombs. Their movements were extremely skillful. From the bullets to the launch, all the movements were done in one go. In less than half a stick of incense, the second round of stone rain strike came again.

The small pause just now made the Shu army take a breath, thinking that the Wei army was going to stop the catapult attack and switch to infantry attacks. However, unexpectedly, after a moment, another round of stone rain poured out, and the number of casualties in the Shu army continued to rise.

"Evacuate! Evacuate immediately!" Jiang Wei saw that the situation was not good, so he could only issue an order to evacuate.

The Shu army squeezed on the top of the city were as if they were amnesty at this time, and they ran away in their arms and fled to the city.

Before obtaining the retreat order, no matter how dense the Wei army attacked, they could only stay at the city wall and dare not leave the position easily. Otherwise, the military law team behind them would not be a good meal, and those who retreated were killed without mercy, so they could only squeeze on the city wall and dodge fearfully. No matter what other people's life and death, at least they had to ensure that they would not be hit by stone bullets.

Jiang Wei knew that the Wei army's stone throwing attack was to provide firepower support to the siege infantry. If the Shu army easily left the position, the Wei army's infantry would soon counterattack. Therefore, after facing the first round of stone bomb attacks, Jiang Wei did not issue a timely order to retreat and evacuate. He also wanted to see what the Wei army's subsequent methods were.

But unexpectedly, the Wei army's stone bullets were smashed down like they didn't have money. If the Shu army continued to maintain such a dense formation, the cost of casualties would only increase infinitely, so in desperation, Jiang Wei had no choice but to order an emergency evacuation.
Chapter completed!