Whether the Khitan is powerful will be tested immediately.

Song Jiu was still a groundhog and ran to manage logistics from time to time. It was okay, but Zhao Pu felt ashamed of himself when it came to his mind.

The weather was getting hotter and hotter, and Guo Da and Hu Da were carrying bars not far away. Hu Da was riding Dasha in the south of Shiling Pass, carrying a Park Knife, and wanted to kill the enemy and make meritorious contributions. He Jiyun was not a big deal. Don’t talk about killing the enemy, just practice riding skills first. Knowing that this person is very important in Song Jiu’s hands, he also sent two guards to protect him. Of course, no enemy can be killed. But what if something happens to Song Jiu?

He Chengrui also asked Song Jiu.

Guo Dalai, He Chengrui could figure it out that he was Song Jiu's servant, who was specially used as a bodyguard of the Song family. Hu Da was different. He not only managed the Liuli workshop, but also managed the Hezhou construction workers for Song Jiu.

Song Jiu explained it before he understood.

Why do people value Hu Da? People are loyal and know how to be grateful? Unlike many people who are not well-raised, they become ungrateful and have prestige. They have made their fortunes before and have certain organizational experience. But that is still a coolie, a clumsy and primitive organization, not like the army, and have stricter management. They are brought here to let him see the world. At the same time, there are still some wing soldiers on Hezhou. These soldiers are all left by the imperial court, old, weak, sick, disabled, or cowardly, but they are all soldiers, with a few thorns. Hu Da came to the front line, and a layer of gold can shock them.

Not only is he strong, but he is not only strong in the army, but he doesn't have too many warriors with great strength. He is strong, but he has strong strength. If one doesn't work, two will come, and two will come, three will come, and Wu Song also let go.

Listening to Guo Da’s nagging, Hu Da was extremely depressed.

Song Jiu smiled and continued to sit on the grass to calculate the data. At this time, Zhao Kuangyin brought his ministers to him and saluted them together.

Zhao Kuangyin wanted to be cool and barely feet. He probably was quite happy in his long-lost military life. Song Jiu looked at his big feet. Zhao Kuangyin didn't care and said, "The weather is too hot, I just went to the river to wash it."

With a wave of his hand, the eunuch came over to put on his shoes.

He asked again: "When can we blow up the city wall?"

"At least the day after tomorrow."

"Try to hurry up, the Khitan sent a large army here again. This time, there are many troops. Once the country is over, I will advance and retreat."

"Here."

The eunuch put on his shoes for him, and Zhao Kuangyin stood on the top of the hillside. Looking into the city, Lu Yuqing said, "From now on, the small city will never exist."

The tiger cannon is powerful and kills Taiyuan City. Within more than 200 meters, it can fire huge rocks at will. The stone bomb can reach more than ten stones. If it is reduced to one stone, the farthest can reach more than 600 meters. However, Taiyuan City is large, nearly nine miles from north to south and nearly seven miles from east to west. Cast scattering machines cannot be fired under the city wall, and it also prevents the bows and crossbows on the top of the city. Generally, it can be thrown away by a hundred steps away. The farthest scattering cannon cannons cannons reach 500 meters. The one that can cause damage is 400 meters. Therefore, the Haizhou Governor Sun Wan entered Fenzhou and first used a tiger cannon to test the fire, and shot to the center of the city with one shot. After a few shots, Fenzhou surrendered. The Song Dynasty then launched a side army to surround Lanzhou. The Lanzhou Governor Zhao Wendu, regardless of his mother's still in Taiyuan City, saw that the tiger cannon almost covered the entire city. He could not fight and surrendered. There were many examples of using catapults to force the enemy city to subdue the enemy city. The most famous one was Hou Junji to defeat Gaochang.

These battle examples have many flaws. The first is like the Song Dynasty. It has an absolute advantage over the city. If it surrounds the catapult, it may be dangerous. If you are siegeing the city, it will be mobilized to fight with you outside the city. Maybe the defenders in the city will cooperate and attack inside and outside, can you slowly be safe and slow to throw them?

Second, you must bring skilled craftsmen with the army to make it on the spot. This time is also very long. If you want to pose a dangerous number to the city, it may take several months to create it.

The third is bulkiness.

The tiger cannon is different. It is also bulky and much better than before. The most important thing is that it can be packaged. Once the huge cannon body is removed, most places can be transported over and assembled quickly and can be used immediately.

Taiyuan City is vast and cannot be covered. But if you want to defend the city, under the attack of tiger cannons, the distance between the east, west, south and north cannot be less than 1,500 meters, so as to squeeze out a living space and ensure the safety of life. There are not many such cities.

If you are not afraid of foreign players or internal attacks, more than 90% of small and medium-sized cities and fortresses, including the Guankou Village, can be killed by them.

Moreover, it is not like gunpowder, involving complex casting techniques and steel, and it is very difficult to imitate it.

But this is Taiyuan City.

It’s not enough to have tiger cannons. Everyone looked at the city silently. There were rubble everywhere beside the city walls, and there were almost no complete house. Not only stone bullets, but also bows and arrows. The accounts passed through Song Jiu’s hands. The special crossbows fired by the Fulu crossbow alone reached more than 300,000, and more than 500,000 ordinary bows and arrows. Taiyuan City is still a city.

Sometimes when Song Jiu looked at Taiyuan City, he felt miserable when he saw the people, and thought of their tenacity, and felt hateful. If he continued to fight like this, more people would die. There were shortages of people everywhere, and it was not yet an era when human life was worthless!

Let's end quickly.

But then, Song Jiu understood what tragic meant.

The next day, a trench, which is the moat. Many soldiers died in order to fill the two rivers. But it was not possible. It was just that the Liangfeng Valley Feng and Jinci water filled them, so that they could go south and east, and they had to fill them. Otherwise, once they fell, water would accumulate in the trench, and the enemy could dig the river embankment at any time. Therefore, the people near Taiyuan were digging and filling it. This is your people, watch it. But the parents below, they could not let the city be broken, and the soldiers on the city still shot. The arrows shot by the Song army were enough for them. The commander in the north was Cao Bin, who was not very murderous. Seeing that the people were pitiful, they shot arrows and artillery below to cover it. Many people still died, almost half filled up. Then they put wooden stakes on them to make landmarks.

It must also be filled in. Yang Ye digs deeper the moat, and it is impossible for the tunnel to be digged deeper than the original moat.

Saying it is useful does not seem to come in handy afterwards. Saying it is useless, but it is really useful. The biggest function is time, which has won more than ten days of precious time.

When I saw the new mud, I hit the wooden stakes again, and then calculated the error. The error was almost as small as less than ten centimeters. When the person was digging down, Song Jiu was just measuring the angle and shadows from a distance. Even if he calculated it, he would come out. There were many civil officials among the accompanying ministers, and they all thought it was a magic calculation. This was too amazing. Song Jiu shook his head and said, "In another year or two, at least twenty of my students will be able to do it." It would be strange if he didn't understand it."

I don’t know the city either, but there are ways to do it in the city. Song Jiu had to dig tunnels, and Taiyuan City was the ancestor of digging tunnels. Especially when Li Guangbi’s battle, of course, the location was different. It was in Dongcheng District, which was the abandoned city on the east bank of the Fenshui River. But the history of Taiyuan City.

After leaving the trench, it was very close to the city wall, and the battle began.

There is a way to dig trenches in the city. It is obvious that they are digging trenches. In fact, when it is pitch black every night, they dug several tunnels outside. They are all pretending. Outside the city, they are digging tunnels openly, and actually digging trenches, and some of them are still very angled. When digging trenches in the city, they are actually digging tunnels.

A wooden support was built inside. The soldiers listened inside, and the Song people came, but they didn't say anything. When they were about to pierce, they stabbed the spear. Then they hollowed out the soil and went in full armed to assassinate. Only a few people escaped.

Cao Bin was furious. He borrowed tiger cannons from the east and west battalions and poured into the city. He also used the soldiers to press the firepower on the city with the Fulu crossbow and the original powerful crossbow, and sent soldiers to dig the ground from above. However, the people inside had already withdrawn and blocked the soil. He could still dig, but the Northern Han people had all mastered the approximately direction of the tunnel, so they stayed in the city wall with a long spear.

Also, there was an authentic tunnel near the Fenggu River Water Gate, which was close to the Fenggu River Water Gate. The Northern Han did not expect that it would approach quietly. Song Jiu brought the map to meet Zhao Kuangyin. He was also extremely miserable. When he thought that the Northern Han people were so strong, only this tunnel was probably unthinkable for the Northern Han people to let the tunnel be successfully opened under the city wall and the gunpowder was also put away. Should I dig a few more, or blow it up first?

"Can't wait any longer," Zhao Kuangyin said.

Then start.

It was Dragon Boat Festival. There was no atmosphere of festivals on both sides. Undercurrents surging, and the morning glow was covered with blood. Song Jiu commanded the soldiers ignited the fuses in the moisture-proof bamboo tube. This time, Song Jiu made another improvement. It was not a coffin, but a big firecracker. The inspiration was still from the firecrackers. Some children were brave and set off the tails of firecrackers. Why is it okay? Because there was a fire stuffed underneath. Gunpowder exploded and the momentum moved forward. Of course, it was very dangerous to do this. If the soil below was not stuffed tightly, it would rush backward and explode with hands.

Therefore, it is long cylindrical, with two layers of iron covering the outside, so that the momentum of the air pressure is absolutely upward.

After a while, a loud bang came out.

The tall Taiyuan city wall shook a few times, then fell down suddenly, and a large gap nearly ten meters wide appeared.

Many people in the city resented Yang Ye, believing that Yang Ye was defeated repeatedly and was defeated by the Song Dynasty. At this moment, no one had such an idea again.

Cao Bin shouted: "Chong."

Such a large gap appeared, no less than opening the city gate. However, at this time, the soldiers of the Northern Han Dynasty actually organized. As soon as the Song army arrived under the city wall, teams of soldiers inside went from panic to calmness, to resistance, and some people pushed the vehicle into the vehicle. They fought in front and turned the vehicle formation behind them. Then they pushed the vehicle formation step by step to the gap. The two armies began to fight fiercely through the vehicle formation. In the blink of an eye, many people died, and blood dyed the black land red.

Then the people spontaneously organized and rammed the wooden stakes. The ones used to make wooden stakes now do not need wooden stakes. There are stones in the city. Then they put the stones and soil in. Two hours later, a short city wall appeared at the gap.

Hu Da opened his mouth wide in surprise and said, "This is OK."

When the city wall was blown down, let alone Hu Da, even Song Bing was stunned for a moment. Such a tall city wall fell down with just a sound. Hearing the screams of the soldiers buried under the city wall, they were all stunned.

But how did the Northern Han people organize it?

Zhao Kuangyin also stood behind and watched. It was because of Song Bing that he was not brave. During these two hours, hundreds of soldiers fell down and rushed up one by one, but in the end he failed. It was boring to rush again, so he was disappointed and ordered to stop the attack.

Lu Yuqing stood behind and couldn't figure it out. It seemed that the wall of Guankouzhai fell down, and the rebel soldiers were stunned. The Song army rushed in and the battle ended. But it didn't work in Taiyuan City.

Everyone thought of several allusions, such as Tian Dan's Jimo City, Yuan Jia Caocao, Fenglangjuxu, Xuyi City, the only highlight of Guzhong, Zhang Xun and Xuyuan's Juyang City, and the damn Wei Xiaokuan's Jade Bi City.

Thinking of Yubi City, everyone couldn't help but fight a cold war. The terrain was so similar, and there was also Fen River, but Yubi City was still in the south. The soldiers and horses were also very similar, and the commanders were also similar. Gao Huan's ability was similar to Zhao Kuangyin, with more than 100,000 soldiers and horses. The methods of siege were even more diverse. First, it was water. Gao Huan cut off the Fen River and prevented drinking water in the city. Wei Xiaokuan used earth to overcome it, and dug wells to draw water in the city. Gao Huan used soil to build mountains outside the city, and Wei Xiaokuan used wood to overcome it. He added high buildings in the city, which was faster and always looked down. Gao Huan digging tunnels, and Wei Xiaokuan also used the Northern Han method to dig a trenches in advance, which was even worse. When he saw the hole coming out, firewood was lit inside, and blasting with cowhides, Gao Huan's subordinates were burnt to pieces. Gao Huan used Jin, an elite soldier with full armor attacked Beicheng, but still suffered heavy casualties and failed. Gao Huan used wood to make a giant crash, and put a huge curtain on the city, softness could overcome hardness, reducing the impact of the crash. Gao Huan used fire and used hemp rod to burn the curtain. Wei Xiaokuan used gold and tied the big knife to the long pole, hooked it down with one knife, hooked the fireball off, and burned Gao Huan's subordinates to death. Gao Huan dug another tunnel, built-in pile wood, poured oil, and the wood burned the city wall. Wei Xiaokuan used wood again, poured a gap and blocked a fence. Gao Huan was helpless, and the Yubi City had not captured it, and his subordinates broke more than 70,000 people and dug a huge pit to cover it. At that moment, Gao Huan vomited blood and sang the famous "Chi Le Ge". Soon a generation of heroes died...

These battles have far-reaching impacts. An Lushan could not cross the Huai River, and the supply in the southeast came in a steady stream, and eventually failed. The Northern Wei Dynasty could not cross the Yangtze River, and the north and south continued to split. The Qi State made a comeback. The Yuwen family finally killed the Gao family.
Chapter completed!