Guo Jia is best at fire attack. Judging from the situation of Yecheng County at this time, it is most appropriate to implement fire attack. Needless to say, the direct attack effect produced is sufficient. The accompanying high temperature conditions can promote the rapid melting of Yecheng's reinforcement city.

Yang Rui had not thought about using fire attack before, but that was the most unavoidable choice. After the fire attack, it would be a mess and suffered heavy losses. Yang Rui captured Jizhou to defeat Yuan Shao, and in fact, it was even more for the long-term peace and stability and to make the people live and work in peace.

If it was a fire, there would be no idea how many creatures would be miserable in Yecheng County, such as the concentrated population. Therefore, large-scale activities were only adopted when Yang Rui had to take action, which was different from the previous fire attacks.

However, Guo Jia's suggestion this time was to carry out a fire attack locally, but to burn a fire in the area near the city wall of Yecheng. This generation was basically the barracks where the defenders did not gather troops, not the area where NPC leaders gathered.

After several people's discussion, Guo Jia's suggestion was quickly adopted by Yang Rui, but the temperature dropped again that night, and the reinforced city that was about to melt was frozen again, which was not the best time to launch a fire attack.

At the same time, Yang Rui's troops also need to make certain preparations and prepare for fire attack raw materials, and the time has been delayed until after noon the next day.

"Swoosh!swoosh!swoosh!"

"Crack! Crack"

"boom"

"Crack! Crack"

""

The highest temperature in one day is noon, and the accumulation of temperature has not reached its peak before. As soon as the time comes, all the fire attack methods prepared by Yang Rui were put into operation and started the attack.

The flying pet unit, like a cloud, swept across the tall city wall of Yecheng, and threw "air bombs" one by one. At the same time, heavy trenchers outside the city wall also dropped large pieces of wood into the city.

Due to the lack of "cannonballs", the heavy trench machine has not been put into use for a long time. It is now used to drop wood cut into pieces, and it does not require any attack power. It only needs to enter the tall Yecheng city wall. If that is the case, there is still no problem.

The aviation bombs roared and fell in pieces, which caused only the fire points that were ignited everywhere at the first time, and did not become fierce soon. However, after a large number of wooden blocks fell, the fire was gradually expanding.

Even though there were soldiers of the Yuan Shao guarding the city in Yecheng everywhere nearby, there was no way to deal with the fire point where the aviation bombs collapsed or the huge wooden blocks falling from discomfort.

Although huge wooden blocks are definitely difficult to have an effect on the city wall, the effect will be very different once it hits people. Therefore, when Yuan Shao's defenders quickly saw the intention of the siege troops, they were basically helpless and could not clean up a large amount of wood in time.

What is Yang Rui’s most inseparable? Naturally, there are a large amount of basic resources stored everywhere. Yang Rui’s hands are countless ordinary woods, and the ground in Jizhou is also rich in wood, so the roar of heavy trenchers has never stopped. Batches of wood were sent into the walls of Yecheng and gradually accumulated.

At this time, the second wave of "air bombs" for flying pets has arrived again. Each flying pet carries 3 bombs each time. Even though Yang Rui only summoned less than 4,000 flying pet units, more than 10,000 fire points could be exploded in each dial. The arrival of a dial also made almost bloom in the south wall of Yecheng.

It almost didn't take long. As more and more wood was piled up under the southern city wall, the fire became stronger and stronger. After a cup of tea passed, the fire waves in the city had soared into the sky.

Even if the fire spreads relatively limited, many Yuan Shao's soldiers came to pick up water, but they were completely unable to control the fire, which was very likely to add fuel to the fire.

"Click"

"Crazy"

"ah"

""

As the temperature suddenly rose, the sound of ice melting in the morning and the occasional wall slipping off were never stopped, and it was much denser than the previous day. At this time, coupled with the raging fire, a reinforced smoothie wall section could not bear it and collapsed directly about twenty or thirty meters.

The large wall collapsed, and the soldiers on the reinforced wall became miserable. They fell directly from the huge area on the super high city wall. Some died on the spot, while others were ignorant of their lives and deaths, almost covering the walls.

At the same time, there is something even more tragic. The soldiers on the city wall have at least a chance to howl, while the soldiers on the smoothie city wall inside the ear holes of the cat were directly pressed under the collapsed wall, and there was no chance to say a word.

This part of the guards naturally had no chance of survival, and it was easy to die. The most tragic one was the guards Yuan Shao's guards inside the original stone wall on the bottom. The smoothie wall on the upper floor collapsed and buried them alive. Moreover, the hope of escaping was extremely small, so they could only wait for death.

"Click"

"Crazy"

"Help"

""

There are more and more collapsed upper smoothie city walls, but not just one place. As the fire continues to increase, the entire Yecheng County city wall is in danger. At least 10 gaps appear in just a few breaths.

The nature of the city wall is somewhat similar to that of the embankment, and they are all huge vertically. Although it is different from the pressure-bearing water dam that the Thousand Mile Dike is destroyed by the ant hole, once a gap occurs, the structure of the entire city wall becomes very fragile.

"Click"

"Crazy"

"Run quickly"

"Help"

""

With the high temperature and the internal fire, the south wall of Yecheng was already in danger. As the upper layer of smoothies reinforced city walls collapsed, Yuan Shao's defenders on the walls (inside) began to escape and take refuge even if they were slow to react. However, many people were not able to get down the city wall and were buried forever.

For a moment, the south wall of Yecheng was in chaos everywhere, and no one cared about the fires in the city. Large pieces of collapsed ice walls would fall from time to time in the middle or near the sea of ​​fire, causing considerable damage.

Seeing the smoothie wall that had originally increased height and widening collapsed, Yuan Shao's defenders retreated sharply. Yang Rui knew that the south wall of Yecheng had lost its effect, so he waved his hand and stopped the heavy catapult and continued to throw wooden blocks into the city.

However, at this time, Yang Rui's siege was also facing the danger of collapse of the city wall, and even if he was willing to attack the city, he would not be able to break into it for the time being.
Chapter completed!