Lü Bu also received the news that the enemy was going to launch a general attack, and it seemed that a decisive battle was coming, so he ordered all his troops to prepare.

All the trebuchets and trebuchets were ready for battle, and all the stone bullets, crossbows, and spears were moved to the city, as well as other supplies for defending the city.

Fortunately, the Qingzhou Army's rounds of blood transfusions have added a lot of new forces to the Central Army.

When the sun rises in the east on a new day, all the units of the Kwantung Coalition Army go out together, and hundreds of horns blow at the same time, each with a different melody.

In the camp of the Kwantung Coalition Army, the drums of war came and went, all the gates of the fortress were opened at the same time, and countless military flags covered the sky and the sun, swarming out.

Hundreds of thousands of Kwantung coalition troops appeared at the same time, the scale was huge, the crowd was crowded, and the battle formation stood a long way from the camp gate to the city wall.

The infantry in groups were neatly dressed, the armor was distinct, the swords and guns were dazzling, especially the bronze armor of the Jizhou army was glowing with golden light, so that others could not open their eyes.

The cavalry of the brigade also came out, although they could not participate in the siege, but they still had to stand up and cheer for the infantry brothers!

The princes from all walks of life, accompanied by their own generals, slowly appeared, and they were also shocked by the spectacular scene in front of them.

The last to appear were the big guys, first of all, forty tall wells slowly pushed in front of everyone by hundreds of hoplites.

Hundreds of thousands of soldiers of the Kwantung Coalition Army saw these behemoths that were seven or eight feet high, as if they had seen victory, and erupted into a tsunami-like cheer.

The central officers and soldiers at the head of the city gasped, especially those local troops, who were a little worried and frightened when they saw the huge monster that was a cut higher than their own city wall, and their faces turned white with fright.

Or those experienced veterans and clerks, kicked at the ass one by one, "Afraid of a ball, our heavy artillery will fall apart with a stone bullet, wooden, what are you afraid of?" ”

The recruits who had been kicked in the ass had their fears driven away by the pain, and when they heard the words of the veterans, they were not so afraid.

A hundred thunderbolts followed, but this thing did not add any more fear to the defenders, after all, there were many trebuchets on their walls, and there were many bigger ones behind the walls.

The soldiers of the Kwantung Coalition Army once again boosted their morale, and their morale was high one by one, and their confidence was bursting.

After holding back for so many days, they finally held back a bunch of big guys, and they had never seen so many big guys gathered on one battlefield.

Not to mention them, even their own lords and generals have never experienced such a scene, and they are all full of confidence.

Cao Cao also generously sent two thousand crossbows to each prince, except for the Qingzhou army, because the Qingzhou army itself could imitate the repeater.

According to the agreement, the princes of the Seven Roads each shared a section of the city wall, and swore that before all the siege equipment was destroyed, the attack would not stop, this time it was filled with their lives, and they would also fill in the tiger prison.

First, the hoplites held large shields to cover the army that was responsible for filling the moat, and pushed one after another into the moat, filling in more than a dozen passages.

Immediately followed by the appearance of the thunderbolt car, in order to increase the range, Liu Ye changed the stone bullet to a thirty pound one.

In this way, a thunderbolt cart pulled by 40 people can throw 30 catties of stone projectiles 200 zhang away.

So a hundred thunderbolts, dragged and pulled by many people, moved resolutely towards an area two hundred feet away from the city wall.

Cao Cao was also equipped with many hoplites with large shields around the thunderbolt, and all the princes except Yuan Shao felt that Cao Cao was doing this too much, and what else could the central army have a range of more than two hundred zhang?

Soon, the defenders of Tiger Prison Pass gave them the answer, and when the thunderbolt had advanced to a distance of three hundred zhang, one stone bullet after another fell from the sky.

Although it failed to directly hit the Thunderbolt, it also killed and wounded a lot of the infantry of the Kwantung Coalition Army who were charging.

Seeing this scene, the soldiers of the Central Army on the city wall cheered and thundered, or their own treasures were so powerful that they could smash it so far.

One of the good-eyed men in the Kwantung coalition said that the stone bullets were flying from behind the city walls.

This statement made Liu Ye, Tian Feng and others scoff, and they didn't use their eyes to observe, how to aim? Isn't that just a random fight? How is it possible?

They don't know that there is such a thing as indirect aiming in this world!

Lu Bu specially selected nearly 100 soldiers who had learned arithmetic, and explained to them the principle of this indirect aiming method, the relationship between angle and distance.

These soldiers who are responsible for aiming and calculating have long since divided the area from 50 zhang to 450 zhang in front of the Tiger Prison into coordinate areas.

Therefore, when fighting, it is many times easier and faster to calculate, and it is more accurate.

The first few stone bullets were only test-fired, and when they fully adapted to the atmosphere on the battlefield and became more and more sober-minded, the calculated landing points became more and more accurate.

They have a dedicated communication person with the counterweight stone throwing machine who is responsible for communicating the message, because the thunderbolt is moving slowly forward, and they also have to calculate the amount of advance.

Luckily, the Thunderbolt moves very slowly, and the impact is negligible.

Finally, the first thunderbolt was hit by a 30-pound stone bullet, hitting the base and wheels, and the car could not move forward and stopped in place.

Just as everyone was about to repair it, the second stone projectile hit the thunderbolt car accurately, completely destroying the gun carriage and gun tips on the car, and the error of the two stone projectiles was only two feet.

Seeing this, Cao Cao ordered the Great Shield infantry to desperately protect the Thunderbolt, and even if they died, they could not retreat. On the other hand, the command was to speed up the speed of pushing the Thunderbolt forward.

The Central Army has only 30 counterweight stone throwers, and it is an indirect aiming method, and although the firing range is long, the accuracy is still extremely low.

The power of thirty catties of stone bullets is also small, and several times they were taken down by the desperate Cao army heavy infantry with large shields.

Although the shield was broken, the thunderbolt was saved.

Therefore, when the Thunderbolt successfully reached the effective distance of 200 zhang, only five of the 100 Thunderbolts were destroyed in the hands of the stone thrower in the Tiger Prison Pass.

These thunderbolts immediately began to load 30 pounds of stone bullets and throw them at the city, and at the same time, a large number of hoplites carried ladders, pushed ladder carts and rushing carts, and began to charge under the city walls.

However, the attack that preceded the Thunderbolt was the sixty man-powered trebuchets on the inner wall of the Tiger Prison Pass, which was twenty more than before, and was newly built by Ma Jun.

They took advantage of their superiority, the same 30-pound stone bullet, but the range was farther than that of the Thunderbolt.

This time, you can aim directly, and the accuracy has also improved a lot, and the first wave of attacks has damaged several thunderbolts.

However, the Kwantung coalition also reacted quickly, they didn't need to aim, they just fired at the city wall.