Just as the Cao army infantry roared and charged, the Cao army's war drums immediately rang out like thunder. The war drums were extremely excited, and the Cao army soldiers couldn't help feeling excited.

Cao's army began to attack the city wall, and the overall defense of the shield formation was inevitably removed. This was a great opportunity for crossbow chariots to attack.

"The crossbow cart adjusts the shooting angle! Shoot!" Tian Feng ordered with a hoarse voice.

The soldiers who operated the crossbow car were ordered, so they immediately turned a handle on the back seat of the crossbow car. The crossbow car then lifted it up and faced the city wall at an inclined angle. The crossbow car made by the Zhengbei Army had long considered the need to shoot under the city wall at a close range, so the crossbow car was equipped with a simple mechanical device, and as long as a handle behind the seat was turned, the shooting angle could be lowered.

After adjusting the angle, the soldiers who operated the crossbow cart suddenly pulled a copper ring on the pedestal of the crossbow cart, and then the rain of arrows poured into the soldiers under the city like a group of bees coming out of a hole. The scene really made people feel breathless.

Under the cover of the rain of arrows, blood flowers suddenly bloomed one after another. It is hard to estimate how many people Cao Bing fell down this time.

The wood and stones on the city wall were thrown down the city wall without interruption. Cao's army was smashed to death and blood.

After one round of fire, the crossbow was immediately pushed to the back and reloaded.

Cao's army put the cloud ladder onto the city wall with the rain of arrows flying down, and then rushed up the city wall along the cloud ladder. During this process, Cao's soldiers were hit by arrows or hit by stones, falling off the cloud ladder. The scene was both spectacular and cruel.

Thousands of crossbowmen were shooting arrows on the city walls behind the Chongcheng troops. Although their attack effect was not ideal, it also caused some casualties to the Northern Expedition Army.

Under the attacks of various means by the Northern Army, the Cao army suffered extremely heavy losses, but this did not stop the Cao army from advancing. After the Cao army suffered heavy casualties, soldiers finally climbed to the top of the city.

The Northern Army immediately made corresponding adjustments. The crossbow chariot and crossbowmen retreated to the back, and the horizontal sword warriors, sword shield soldiers and long halberd soldiers rushed to the front at the same time.

In the fight between swords and guns, Cao Cao's army, whose troops were temporarily in opposition, could not resist it at all. The Cao Cao soldiers who climbed the city were either beheaded on the spot or were thrown directly from the city.

However, this situation did not last long. In the cruel hand-to-hand combat, Cao Cao's army opened a gap in the southern city wall, and then Cao Cao's army quickly gathered there along the ladder.

It turned out that the Cao Cao army general who was commanding the siege was leading the way to pretend to focus on attacking the central city wall and the northern city wall, but was actually secretly preparing to attack the southern city wall. When the attention and strength of the Zhengbei Army were attracted, Cao Cao army suddenly exerted force and concentrated its forces to launch a strong attack on the southern city wall. At the same time, all the archers' firepower was also transferred to the southern city wall. The Zhengbei Army was caught off guard, and first was killed and injured by the Cao army's archers, and then under the fierce impact of the Cao army, he was immediately attacked by the Cao army.

The siege troops opened a gap. Seeing this, Cao Cao's army couldn't help but shouted together. Cao Cao, who was closely following the progress of the battle, looked excited and immediately exclaimed loudly. "Wen Qian is really good!", and immediately ordered; "I ordered Cao Hong's troops to attack! Support General Le Jin!"

The commander received the order and immediately wanted to go down to pass the order. At this time, Cao Cao stopped him again: "Wait! Tell General Cao Hong that the army should disperse as much as possible when advancing!" The reason why Cao Cao had given such a warning was a forced one. Cao's army's catapult troops had been destroyed. Cao's army now has no means to suppress the catapults of the Northern Army. He could only rely on trying to disperse the formation as much as possible to reduce the killing effect of the catapults of the Northern Army.

After a while, the Cao army's formation was moving. Thirty thousand infantrymen broke out from the formation and rushed towards Huguan quickly. The 30,000 infantrymen scattered very well, which was completely different from the situation when the army attacked the city.

On the south wall, the military strength of the Northern Army was at a disadvantage. Although the soldiers of the Northern Army fought to the death, they could not suppress the Cao army.

......

As more and more Cao's soldiers climbed to the city, the Northern Expedition Army gradually could not suppress the situation and the situation seemed precarious.

At this moment, Zhang Fei appeared on the top of the city, and he led thousands of warriors with swords to rush along the city wall to the south.

The soldiers of the Zhengbei Army who were in the south faced more and more Cao's army and fought hard, but in the end they were outnumbered and the city wall was lost inch by inch. The corpses were piled up on the city wall, and blood gathered into a stream and flowed between the cracks of the city bricks.

At the most critical moment, Zhang Fei finally led the warriors to join the battle.

Zhang Fei roared and waved the Snake Spear to stir up a hurricane among the Cao army. Wherever the spear passed, he saw the remaining limbs splattering and blood was like a splash.

The warrior of the horizontal sword, who was immediately behind Zhang Fei, shouted loudly, and rushed into the enemy with a sharp horizontal sword in his hand, and fought with the enemy. The warrior of the horizontal sword was the elite of the infantry, second only to Mo Dao Bing. The brave men fought Cao's army backwards as soon as they came on the field.

However, Cao's army was also very strong. Faced with the powerful counterattack of Zhang Fei and the warriors of the Hengdao, Cao's army roared and fought with the Northern Army, and there were often situations of one sword changing one sword. His fierce and fearless spirit can almost be compared with the Northern Army!

But the Northern Expedition Army was the Northern Expedition Army after all. They became more and more braver in the battle. They made the Cao army understand what the real elite in the world is!

The warrior holding the horizontal sword roared and sprinkled sword lights, and used his life to snatch the lost city wall back inch by inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch in

This battle for the city was extremely fierce, and it was truly a "inch of city walls, one inch of blood". The Central Plains Army's fearlessness and strong combat effectiveness made the Central Plains Army feel for the first time how amazing the elite of the world is. Although Cao Cao's army is slightly inferior in combat power, it is not inferior to the North China Army in terms of momentum. If Chen Chu was here, he would have sighed: No wonder Cao's army in later history was able to sweep the world and be almost unbeaten. This is really a reason!

Cao Cao, who was watching the battle behind, looked at the bloody and tragic on the city wall. His face turned red due to excitement and tension. His fist holding the sword was trembling gently involuntarily, and even his knuckles had turned white due to excessive force.

The expressions of other soldiers of the Cao army were similar to those of Cao Cao, and they were even more excited. They couldn't help but shout loudly, obviously the bloody battle on the city wall made their beast blood boil.

While the bloody battle was going on on the city wall, Cao's army's 30,000 support infantry were quickly approaching the city wall. When they entered a distance of 300 meters, they began to be continuously bombarded by the catapult troops of the Northern Army. However, because they were dispersed very well, the catapult did not cause them much damage.

After a short period of time when Cao's army felt that the Northern Army had been feeling that it was a short period of time, Cao Hong's 30,000 infantry finally rushed under the city wall after paying thousands of casualties. Then he immediately entered the battle. At this moment, the total force of Cao's army to attack Huguan reached 55,000, while the total number of defenders in Huguan was only 40,000.

Tian Feng, who was commanding the army on the city gate tower, looked at the dark Cao army under the city wall and frowned. If the situation continued to develop like this, Huguan would inevitably be lost.

There is no other way! There is only one who can use the Thunder! Tian Feng made up his mind and said.

At this moment, a loud noise came from the city gate, and then the soldiers on both sides of the city wall felt their feet shaking violently.

Tian Feng couldn't help but change his face and asked anxiously: "What's going on?" As soon as he finished speaking, a soldier covered in blood came to report the report: "Sir, a car rushing to the city broke through the blockade and began to hit the city gate!"

Tian Feng was shocked and immediately ordered: "Telection Deputy General Li! Detective Squad! Use Sky Thunder!"

Then, a team of soldiers in unique costumes appeared on the city wall. They were not wearing armor or weapons, and each of them was holding a small bag. If a modern person saw this bag, he would definitely exclaim: Isn't this an explosive bag? That's right, the bags in the hands of these soldiers were explosive bags, no, to be precise, it should be gunpowder bags...

, This gunpowder pack is the first gunpowder weapon that Chen Chu asked the craftsmen to try hard to use in actual combat. At present, the gunpowder weapons in the Northern Army are still very limited, with a total of less than 1,000, while the Huguan Guards only have two hundred.

"Immediately use 'Sky Thunder' to destroy the city gate's rushing car!" Tian Feng immediately ordered.

Then the two suicide squad members lit the gunpowder bag and threw the gunpowder bag towards the city gate.

When the Cao army saw two small things throwing down from the city wall, they originally thought they were stones, but the thing hit a soldier's head and did not do anything to the soldier. Then the two things rolled to the ground and smoke emitting white smoke, but no one took this scene to heart on this chaotic battlefield.

After a while, two balls of fire rose from the city gate, accompanied by two loud noises. Suddenly, the entire earth seemed to tremble, and then thick black smoke rolled away.

Cao Jun was stunned by the sudden scene. No one understood what was going on. Then, the smoke and dust dissipated, revealing a scene that surprised Cao Jun even more. The two balls of fire were cleared into small pieces. At least dozens of people were blown into pieces, and dozens of people were lying on the ground and wailing in pain. Many of them were blown into blood and blood.

Cao Cao, who was watching the game, suddenly saw the two balls of fire rising, and was shocked. What was going on?!

"Zi Yang, what's going on?" Cao Cao hurriedly asked Liu Ye, who was best at all craftsmanship.
Chapter completed!