The monarchs and ministers discussed for another hour, and had dinner by the way, and finally discussed a new attack plan. Beginning the next day, the Shu army ceased and no longer attacked the city. Some ignorant Wei soldiers in the city were happy, thinking that the Shu army had suffered a big loss, and they were too timid to attack the city again.

Of course, Cao Xiu and other generals are not the kind of ignorant people, they all know that the calmer they are now, the more thunderous the offensive waiting for them will be. They did not dare to relax at all, and sent men to patrol the city walls day and night to prepare for battle.

Unlike the tense atmosphere of the Wei army inside the city, the atmosphere of the Shu army outside the city can be said to be relaxed and happy. Most of the soldiers were resting, after all, after a period of marching, people still needed to rest, but some did not have to rest. The busy people who had no rest were mainly craftsmen, and soldiers were sent out in turns to assist them in cutting down trees and carrying wood.

This time, they're going to do three behemoths -- three super-large bevels. The slope of this large slope is about 30 degrees, and the highest point is just as high as the city wall, and the slope is covered with planks about two zhang wide. Numerous wide wheels are also installed underneath the large slope, so that each wheel reduces the pressure on the ground and does not sink into the ground because the object is too heavy. Because of the friction reduced by bearings, this thing is bulky but easy to push.

By pushing these large slopes to the edge of the wall, the soldiers could run up the wall in one breath from the planks on the slope, which was much better than a ladder. In fact, this kind of siege equipment is equivalent to a simple siege tower, and there were similar siege equipment in ancient times, but Liu Hou simplified it into a large inclined plane.

The advantage of this device is that it allows soldiers to rush up the city wall continuously, and then fight the defenders on the city wall. This kind of equipment can eliminate the condescending advantage of the defenders to a certain extent, and create a relatively fair battle terrain with the defenders. The disadvantages are that they are slow, troublesome, and afraid of fire.

However, these shortcomings are not a problem for the Shu army. The structure of this instrument is very simple, it is nothing more than a shelf made of wood, as long as the wood is thick enough and the structure is more triangular, the slope is strong enough for hundreds of people to step on at the same time.

The so-called trouble refers to the use of a lot of wood, which is caused by the huge system. However, the Shu army was numerous, and Liu Hou only needed to send a small number of people to cut wood in turn, and most of them could still rest. There is great strength in numbers, and this is the truth.

Although there are no electric tools in this era, but the tactics of using crowds can also make the construction speed very fast, and in just three days, three large slopes were erected outside Runan City.

Early in the morning of the fourth day, the attack began, this time with the Keqiu Killing Force first, but not at any of the four gates, but at a section of the city wall in the northwest corner of the city. Through aerial reconnaissance, the Shu army has known that the defensive strength of this section of the city wall is relatively weak, and the key is that there is no urn city behind this section of the city wall, and there is a large flat piece of land outside the city wall, which is very suitable for traveling on a large slope.

Keqiu killed the Wei army on this section of the city wall quickly, and the hot air balloon troops and the Angry Birds relayed a suppressive bombardment of the surrounding area, making it impossible for the Wei army to climb this section of the wall in time to replenish the defensive forces here. Countless Shu soldiers pushed three huge slopes and began to trot.

The behemoth, which was originally very bulky and difficult to move, was easily pushed by the revolutionary technology of bearings, and the hundreds of soldiers responsible for pushing it below provided enough power, so these inclined planes moved quickly.

As for the shortcomings of being afraid of fire attack, Liu Hou didn't think about it at all, because there were basically no living people on this section of the city wall, who else could launch a fire attack at this time? The three large bevels were soon pushed to the side of the city wall and placed on the city wall.

The first to go up were a few craftsmen and the rattan armor soldiers who protected them. In fact, the main thing is to add and subtract wooden planks to make the inclined plane just level with the female wall on the city wall, and at the same time build a wooden board on the female wall on the female wall, so that the soldiers can directly cross the female wall from the inclined plane to the female wall, and then run and slide along the wooden board to the city wall.

The craftsmen moved quickly, and the installation work was completed in less than five minutes, and the rattan armor soldiers, who had been waiting impatiently for a long time, rushed up to the city wall. Of course, before that, the Angry Birds and the hot air balloons cooperated to stop the bombing and make room for their "landing" walls.

After the vine armor soldiers went up to the city wall, they divided into two teams and fought all the way to both sides. The Wei army hurriedly came up to block it, but the rattan armor soldiers were invulnerable, how could the Wei army stop it. In particular, these rattan armor soldiers are not only rattan armor soldiers, they all have thunderbolts hanging on their waists, and the rattan armor soldiers in the front row use knives to slash and kill the enemy, if the enemy formation is too dense and difficult to impact for a while, the vine armor soldiers in the back row will ignite the thunderbolt and throw it over.

Because the city wall is very narrow, a row of human walls can not accommodate many people, and often one or two thunderbolts can blow up the Wei army's human wall to collapse. Although the Wei army is also well-trained, and they are not greedy for life and afraid of death, this way of dying is too terrifying.

Thunderbolts exploded in the crowd, and people were blown to pieces, and some people were embedded with countless pieces of broken iron, and they did not die for a while, but fell to the ground in pain and rolled around, with a pig-killing cry coming out of their mouths. This situation is the most demoralizing.

The Wei army was defeated and retreated under the blow of the strengthened version of the rattan armor soldiers, and soon collapsed, the soldiers turned around and ran back, and the Wei army's supervision team slashed and killed the deserters again and again, but they couldn't stop the tide of deserters.

Stairs descended from the walls at intervals to the city, so that the troops on the walls could be quickly replenished. Both vine armor soldiers quickly killed the staircase, threw a few thunderbolts down, and waited down the stairs, and the Wei army, which was about to wait there, was blown up.

Then the vine armor soldiers poured down, slashing at the remaining enemies, clearing a clearing in an instant. They cleared the open space not for an evening party, but for the follow-up troops to come down and then line up here. They are arranged in a classic "sandwich" formation: the outer layer is the rattan armor soldiers, and the inner layer is the fire ~ spearmen.

The Wei army rushed over and tried desperately to prevent the Shu army from expanding its position under the city wall, but they couldn't stop it at all, and the near ones were killed by the vine armor soldiers, and the far ones were killed by thunderbolts, not only could they not compress the formation of the Shu army, but watched their positions expand step by step.