This distance is already the limit of what they can withstand the strength of the Jingzhou Army's heavy arrows! Now the soldiers in the front row can be knocked to the ground by the heavy arrows if they are not careful, and the heavy arrows have been able to penetrate the shield, but they have just pierced and stuck in it, and they will not cause damage, and if they advance a little further, they will suffer heavy casualties......

The chariots of the Jingzhou army's iron-walled encirclement array, hidden in the military array, are distributed in nine columns, if the enemy soldiers are put into the array, the vertical nine columns will change formations, as long as dozens of chariots quickly change direction, a nine-square grid array will be formed, and the enemy will be cut and surrounded!

If there are fewer enemies coming, then use part of the chariots to directly form a large iron wall circle, slowly close the encirclement, slowly reduce the chariots, the encirclement is getting smaller and smaller, and subtract some of the vehicles, which will be responsible for transporting the cleaned corpses......

Yes, this large array is set out, it is quite a cruel and effective killing machine, Cao Cao, Xiahoudun and others are also very knowledgeable, they have already paid the price of nearly 6,000 people for this, of course they will not be crazy enough to take it again!

So, according to the agreed plan, they now used foot soldiers and huge shields to get the trebuchets close enough.

"Oil can, hair!"

At one time, hundreds of large trebuchets threw out oil tanks! This oil tank is made of pottery, and the huge tank is overwhelming in the Jingzhou military array!

"Not good! The thief will attack with fire! Shovel dirt and cover it!" Hu Rui dipped in a little oil and sniffed. It's dangerous, and the rocket will be launched right away! A little ignition of the oil and sulfur under the feet of the feet, the result is that all the wood is set on fire, and the soldiers become roast pigs!

As a result, some of the soldiers of the Jingzhou army camp began to shovel soil to cover the oil that was scattered everywhere!

"The tank is ready to extinguish the fire...... Probably not much effect! We've got to fight back! Cao Thief really lives up to his name and sees our flaws! Hurui ordered.

In fact, every chariot carries a bucket of water! When designing this thing, Wang Zhirong had already thought of his weakness, this thing is relatively bulky, and it is made of wood, once it is attacked with fire, it is impossible to run. I had to bring a bucket of water, and there was a soldier who was responsible for extinguishing the fire, and once there was a fire, he was responsible for watering it and extinguishing the fire.

Of course, this can only be saved, and the urgent problem cannot be fundamentally solved. If the enemy attacks fiercely, then it can only be left to burn, and the soldiers will retreat first.

Cao Jun has already started the second wave of some flammable materials such as saltpeter and sulfur, and the third wave has launched some ignited hemp balls soaked in oil and pine resin.

Although the camp of the Jingzhou army has begun to shovel soil and cover it, after all, some places have not had time to cover, and those anointing oils will quickly burn once they encounter open flames under the action of combustibles.

The Jingzhou army was responsible for putting out the fire and was putting out the fire. And those who are responsible for counterattacking have already begun to counterattack.

The counterattack of the Jingzhou army is of course very simple, that is, to return the way to the other......

Hu Rui laughed: "Since they use trebuchets to launch fire-burning objects, then all around their trebuchets are flammable!" So as soon as we shoot a wave of rockets, their trebuchets will be destroyed!"

So the Jingzhou army heavy crossbow adjusted the angle and began to fire rockets at the trebuchet group.

"Not good! Lord! Once these rockets land under our trebuchet and ignite the things that ignite the fire, the trebuchet will be finished!" Xiahoudun shouted.

"Command the shield to cover the fire at the bottom of the trebuchet for the time being! Then slowly move these things to a position that doesn't affect the trebuchet's launch, and protect them with a shield array! Burn these things today, no matter what!"

As soon as Cao Cao's order came out, Xiahoudun immediately ordered the most elite soldiers to complete this task! So the huge and heavy shields were already in place in a moment, and these shields were erected in a moment to form an arc, surrounding those ignitions.

Of course, there are also those who have not had time to protect them, they have already been ignited, the fire is burning, the fire is soaring to the sky, the heat wave is pressing, and in an instant, the people around them have run away, of course, there are also people who have been burned, and after a while, a huge trebuchet will be reduced to ashes.

Of course, most of the trebuchets were still protected, and those huge arrows with torches were stuck on the trebuchet, and the force was so great that the torches fell or went out, and even if they were stuck on the trebuchet, they were still burning, and they couldn't ignite the huge trebuchet for a while.

So the trebuchets, which had not yet been lit, began to throw fireballs again under the protection of their shields.

Hu Rui said: "I originally wanted to save some points!" It seems that this old man is determined to burn my iron wall car, since this is the case, then don't blame Lao Tzu for making a trick! Come on, get on the rocket mines!"

Rocket thunder, this weapon, of course, is the fire invented by Wang Zhirong. Medicinal weapons.

In fact, it is pig iron mixed with impurities such as sulfur and carbon, which is very crispy and easy to break!

This thing is cast into a fusiform, hollow, sharp in the front, and open at the back, like a giant pen tip, with a small hole drilled on the side to penetrate the fuse, which is filled with black fire with a high degree of nitrate and sulfur purity, and a golden ratio configuration. Medicine, embedded in the shaft of the spear, blocked the opening at the rear end, creating a confined space.

When firing, light the fuse, put it on the heavy crossbow and fire, and when it arrives, the fuse is burned and the fire is lit. Explosive ......

In fact, Wang Zhirong doesn't want to be angry. The recipe for the medicine is known to anyone in this world, so he makes the fire himself. Medicine, the amount is very limited, so of course there are not many such weapons, and they cannot be used until the last resort.

But at this time, it is clear that the time has come as a last resort.

If the Iron Wall Array is destroyed, their cavalry can drive straight in, and when the time comes, they will definitely not be able to fight the enemy with real swords and guns, and it will be quite dangerous.

So at this time, Hu Rui did not hesitate to use rocket mines.

Cao Cao and Xiahoudun watched from afar at this very strange-looking weapon flying in the sky, like a giant brush with an extremely thin pen and a huge tip, whistling from the sky.

The limitations of the times limit their imagination, and they simply don't understand how much this thing can have!

"Click!" The thing was stuck in the trebuchet, but nothing happened at first.

Cao Jun was a little stunned by this operation, but when they found the smoking rope, they thought of the famous heavenly thunder for a while!

"Not good! Shoot the Tinder! ”

Xiahou can go out, at this time, I still don't forget to die with you!