The stone bombs fired by the Liao army's artillery tower flew over the city from time to time. Although the accurate heads of these stone bombs were low, some of them fell into the city. On the inside of the city wall, the Han army's stone throwers were unmoved at all. Although they could not see the specific situation outside the city wall, once the Liao army's turtle shell entered the range, the city wall would send a signal, and they would immediately eject the turtle tank.

Du Chujiao stared at the slowly moving turtle shell with all his concentration, murmured: "Come on—Come on—"

Suddenly, the turtle shell seemed to pause, swayed in place for a few times, and then stopped.

"Stop—" Wu Chun shouted in a panic, but the horses did not stop in time, and a chaotic wave formed in the crowded horse-driving horses. The drivers held the horse-driving horses tightly, and finally all the horses were quiet. "Hurry, hurry up! Put up the iron barrel cannon!" Wu Chun shouted loudly. When the first time he was hit directly by the cannon on the top of the city, the wooden guard plate made three loud "bang" and "bang" sounds. Wu Chun was so nervous that he almost fell to the ground. Although he tried

After all, the Liao Kingdom did not have the long cannon that fired a powerful round iron bomb. Therefore, Wu Chun was also beating in his heart if the giant shield car could withstand the Han army's shells. Fortunately, after a few "bang bang" hits, the giant shield car was not penetrated, and even because of the huge body, the vibration caused by the shells was very small. Those horses used to firing artillery nearby were even moving forward slowly without any response. Instead, the people in the shield car were all breathing pale faces.

The Han army's artillery was extremely fierce. In this quarter of an hour, the outer shell of the shield car was "bang", "bang", "bang" and "bang" kept ringing, and various round iron and stone bombs hit the shield car as densely as the heavy rain in summer. Screams came from time to time from time to time, which was the infantry formation being attacked by artillery fire on the city. With the shield car cover, the gunners and others rushed to separate the cannon car from the shield car, and then directly put the cannon seats of the cannon directly on the ground. Otherwise, the wooden components could not withstand the huge recoil force when the cannon fired.

"Why did you stop?"

Zhao Xingde frowned, and he stared at the "turtle shell" that could not move three hundred steps away, as if it was the protagonist of the Liao army's offensive. As soon as the "turtle shell" stopped, the other Liao army formations stood still, as if waiting for something. Zhao Xingde's face was covered with a layer of haze. Suddenly, a wooden board in front of the turtle shell was pulled open, and a window was opened, and it was so dark that it could not be seen clearly.

"No, this is the giant cannon of the Liao people!"

Zhao Xingde suddenly drank it, and almost at the same time, with a loud "boom" sound, a huge round stone bullet shot out from the "window". Immediately afterwards, the stone bullet weighing 600 kilograms hit the city wall with a huge speed, and the smoke and dust immediately covered the sun. The entire ground of Nanshan City felt shaking, and the soldiers closest to the shot were almost unable to stand.

Due to insufficient casting technology, the Liao army's iron barrel cannons used a lot of gunpowder every time they fire, and the stone bullet almost filled the entire barrel. In order to adapt to such a large amount of charge, the wall of the iron barrel cannon was cast very thick. Although this was bulky, the power of the launch was extremely powerful. The stone bullet just now seemed to have been earthquakes twice in a very short time. The first was the loud noise when the artillery was fired, and the second was the moment the city wall was hit.

The fortress where Zhou Yu was located was closest to the city wall where the shot was shot, and was almost shocked to fall. "The city wall is about to collapse-" This thought suddenly jumped out of Zhou Yu's mind. He looked out. Fortunately, except for the smoke and dust, the city wall was there. Zhou Yu hurriedly rubbed his eyes, turned around and shouted at the gunner who was almost stunned.

"Why are you standing there? Damn - bomb it for me!"

The terrified Han army gunners shouted loudly almost at the same time, and all kinds of shells rushed towards the damn turtle shell in double intensive manner. However, the stupid guy seemed to be born slow. He except for "slap" down the gun window baffle, then squatted there, allowing the Han army artillery to beat him up. However, no matter what kind of shells hit it, it would inevitably be bounced away, and at most some wood chips were brought.

"Why didn't the city wall collapse?"

Xiao Tachi was about to order the troops to rush up to rob the city, but his face darkened. The generals next to him did not dare to respond, Guo Baoyi explained: "Sir, please be careful not to be impatient for the time being. This city is built firmly and needs to be bombarded a few more times before it collapses." Xiao Tachi hummed, and did not say anything more, staring at the city wall with vicious eyes.

Zhao Xingde breathed a sigh of relief. Fortunately, the rammed earth wall of Nanshan City withstood the test. He frowned and watched the Han army's artillery shells continue to fall on the Liao army's giant cannon bunker, but he was unable to penetrate it. Instead, the shells bounced everywhere hit the nearby Liao army's formation, causing many casualties. The Liao army's formation was calm, as if he was sure that the Nanshan city wall would inevitably be knocked down by artillery, and was still motionless under the Han army's artillery shells on the city.

"Don't worry about the turtle shell for now, and hit the square formation next to it!" Zhao Xingde said in a deep voice.

The Han army's various artillery on the front of the city were turning around and the Liao army formation opened fire with all its strength according to the range. This time, the artillery fire was more violent than usual. Solid iron bullets and rolling stone bullets, passing through the Liao army formation, inevitably brought about blood and wailing. At this moment, the cannon window of the turtle shell suddenly opened again.

"Be careful of the turtle shell!" "The fire is on fire again!" The Han army on the city wall exclaimed one after another.

With a "boom", the eardrums of the Liao army seemed to be about to break through near the 10,000-jin iron barrel cannon. For a moment, they forgot to avoid the shells. The 600-jin stone bullets, with huge power, hit the city wall of Nanshan again. Because the launch location was very close, the landing point of the shell was not far from the moment. This short section of the city wall had suffered two heavy blows from the six hundred-jin stone bullets. The smoke and dust were spreading, and the dust of the rammed earth city wall was bombarded with two large pits. The soil that was originally built was rammed down was falling down.

"Okay!" This time Xiao Tachi used the Qianli Mirror to see the effect of the bombardment clearly, and ordered loudly excitedly, "Soon bombing for me!"

Unfortunately, every time the Liao army's iron barrel cannon was launched, it had to be prepared for a long time. The giant shield car closed the cannon window again and posed for a stance of lying down and getting hammered. This made both sides in the city and under the city explode!

"Quick, hurry--" Wu Chun in the shield car also saw the effect of the shelling, so he could only urge the gunner to work quickly. After each fire, there was a large amount of gunpowder residue in the gun barrel, which needed the gunner to dig out with a special large spoon. At this time, the gunner was still burning with thick smoke, and the gun barrel was extremely hot. Not only could it be easy to burn the gunner, but it could not be cooled with cold water immediately, otherwise it might be blown up for you next time. People and animals in the giant shield car mostly used wet cloth strips to strangle their mouths and noses, so many people were coughing loudly. More people's ears were already half deaf by the sound of cannons in the closed space. Not only did they have to shout loudly to hear the military orders, but they also had to beat them with strokes.

"not good!"

Zhao Xingde was alert. No matter how strong the Nanshan city wall was, it would not be able to support it even if it continued to bombard a certain section. His eyes fell on the turtle shell and frowned. The thirty square formations of the Liao army were still stationed in the distance. Not far behind the turtle shell, there was obviously a cavalry guarding the Han army's cavalry to go out of the city to fight back. The Liao army would rather endure the huge casualties of artillery fire on the top of the city than let the Han army ruin their winning weapon. The Han army in the city had only 3,000 people. If they wanted to go out of the city to fight at any cost, it would have hit the Liao army's wishes.

"Du Chujiao, the sword and shield team will go behind that section of the city wall." Zhao Xingde ordered in a deep voice, "Prepare earth bags and wood and stones on the thick surface of the city wall. Once the city wall collapses, the reserve team of muskets immediately rushed up to seal the gap." The Liao army's iron-connected cannon was unstoppable. For the Han army, the only advantage was that the iron barrel cannon was unchanged and aiming was inconvenient. If the bombardment continued like this, the fool knew that the Liao army must have chosen this section of the city wall as a breakthrough. Zhao Xingde hesitated for a moment and dispelled the city.

The idea of ​​building a concave and concave wall behind the wall. Once there is a gap in the city wall, the Liao army's offensive will inevitably come like a tide. No matter how strong the concave moat is, it is not part of the original urban defense system of Nanshan City. The nearly perfect side firepower arrangement of Nanshan City still has a gap. The concave moat itself alone is not enough to resist the surging Liao army. To defend Nanshan City, one must defend the original line of the city wall. After the city is broken, resistance is steadily, and even street fighting leads to not victory, but death.

The military order was immediately executed, and the barracks behind the city wall were immediately empty. Du Chujiao led the swords and shields, Zhang Liu and other reserve gunmen stationed beside him. The Liao army's 600-pound cannonballs were like giants' heavy punches, hitting the city wall one after another. Behind the city wall, everyone was a little worried. Even Du Chujiao, who was usually not in a good shape, had a serious face, and only commanded the soldiers to put a pile of earth and stone into the bag. Once the city wall collapsed, they had to use these things to block the gap as soon as possible. In addition, some cloth bags deliberately only filled wood, because the wood was lighter, and if there was no time, it would be faster to use them to fill the gap. In case of precautions, the Han army reserve team could not camp and sleep too close to this section of the city wall.

"Brother Zhang, do you think the city wall will collapse?" Huang Lu looked up at the fires flashing outside the city from time to time. The night was low, but the Liao army's artillery bombardment did not stop, as if he had made up his mind that the city wall would not stop if it collapsed.
Chapter completed!