The Turkic army on the eastern front was helpless at Hugu Pass, but the war on the western front was fierce. After capturing the Zihe Great Wall, the Turkic army headed south and rushed to Shanyang County the next day.

Shanyang County was the largest town in the north guarded by the Sui army. The county town stored a large amount of grain, soldiers and other materials, and 30,000 troops were stationed.

The county town is built on a high slope, with a tall and sturdy city, easy to defend but difficult to attack.

Shanyang County was the second line of defense of the Sui army. The reason why it is called the line of defense is because Shanyang County is located on the necessary road to the north and south passage. The Turkic cavalry could ignore the city and continue to move south, but their logistics supply line would be cut off by the defenders of Shanyang County.

The Turkic army went south without finding ordinary residents. Chuluo Khan realized that the Sui army had migrated all the people, which meant that they could not obtain food supplies through robbery.

Then capturing Shanyang County, seizing food supplies for the city and ensuring the safety of the supply routes will become a hurdle that the Turkic army cannot overcome.

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The sky gradually became brighter. When the sun shone through the heavy clouds and cast a thousand golden light on the top of Shanyang City, the warning bell rang at the top of Shanyang City with a "dang! dang!". Thirty thousand Sui soldiers rushed to the top of the city, holding bows and arrows and hard crossbows in their hands, waiting for the battle.

Outside the city, the overwhelming Turkic and Tieler coalition forces had already spread out in a mighty manner. They were divided into four large arrays and rushed towards Shanyang City from four directions. The horns were blowing, and the drums were like thunder. Infantry, cavalry, camel soldiers, and more than 200,000 troops were like waves. They gradually stopped, about five miles away from the city.

Turkic soldiers wore double-layer leather helmets on their heads, leather armor, and sturdy long leather boots on their feet. Their weapons were swords and spears, and there were also a large number of bows and arrows.

Although the Turks were once Rouran's forging slaves and were good at creating various weapons, the serious lack of pig iron since the Turks seized the grassland forced them to melt various used weapons and rebuild them. This instead affected the quality of the weapons and made the Turks' weapons far worse than before.

Therefore, this time the army went south and seized pig iron and weapons from the Central Plains dynasty was also one of the war goals of Chuluo Khan.

The Turkic army obviously did not prepare much for siege.

The more than 200,000 army had only hundreds of siege ladders, no cloud ladders, no siege ladders, no nest cars, and no siege rams. They seemed to be barbarians from the grassland, with only the most primitive weapons in their hands.

The Turkic army was obviously aware of the urgent siege problem. Hundreds of stairs were not enough to capture Shanyang City. Chuluo Khan immediately sent hundreds of people to cut down a big tree that had grown for thousands of years. They needed this thick trunk to break open the gate of Shanyang City.

Chuluo Khan looked coldly at the city in the distance. The city was covered with flags and densely packed with Sui soldiers. Behind them were nearly a hundred huge catapults, standing high above the city wall. Chuluo Khan had participated in the battle to attack Yanmen City and knew the power of the catapults.

It was more than a dozen catapults that caused significant losses to the Turkic army. He did not capture the Sui Dynasty emperor Yang Guang for a month. He fought until a large number of Yang Guang's reinforcements appeared, and the Turkic army was finally forced to withdraw back to the grassland.

Unfortunately, he did not expect that the Sui army would carry out war preparations for nearly half a year, nor did he expect that the Sui army would move all the people of the three counties in the north, disrupting his plan, forcing the Turkic army to give up the superior cavalry and engage in its own weak siege.

Moreover, when they moved south from the grassland, they were unable to carry a large number of siege weapons, nor did they have monster-like siege rams. Many unfavorable factors made Chu Luo Khan full of worries.

"Khan, the city bumper is ready!" A ten thousand tyrant leader rushed to report.

Chuluo Khan looked back and saw hundreds of war horses dragging a huge tree trunk, seven feet long and six feet in diameter. It took hundreds of people to hold this giant city-slamming tree.

Although Chuluo Khan was still doubting the Sui army's catapult, he also wanted to see how powerful the Sui army's catapult was, and he wanted to know how powerful the Sui army's defense was.

"Sorry the Third Army to launch an attack!"

The third army was the army of the Sijie tribe. Chuluo Khan wanted to see the power of the catapult, but he did not want to cause his Turkic army to suffer heavy losses. The Tiel army, which was the leader, was obliged to do so.

"Dong!Dong!" The drums of the attack sounded, and the Sijie army located outside the north city launched the first round of offensive. Ten thousand Sijie army rushed over like a tide. They carried hundreds of siege ladders, waved swords and spears, and rushed towards the city gate with shouts. The arrows were like rain. They shot at the top of the city hundreds of steps away, but there was no effect. They accidentally injured many of their own people.

Behind the tide-like army, an extremely large city-hit tree slowly transported to the city gate under the transport of more than a thousand men.

For the Sui army, they could not tell the difference between the Turkic people and the Tielle people. In their eyes, they were all Turkic troops. This is true. Although the siege was a Tielesjie tribe, they still under the banner of the Turkic army. In essence, they were still Turkic troops.

On the top of the city, the Sui army's cross trenchers began to squeak. As they attacked from top to bottom, the Sui army craftsmen adjusted the distance of the arm and set up a clever lever to leverage such a huge trencher no longer needed 200 people to pull it away, and only fifty people could start it.

The stones as big as millstones were put into the throwing bag. At the order of the general Yuchi Gong, fifty trenchers were fired at the same time. Fifty huge rocks were thrown high, rolling in the air, drawing an arc, and smashing them into the dense crowd.

"Boom!" There was a loud noise from the ground, and screams were everywhere. Several Turkic soldiers were unable to avoid it and were smashed into meat pie by a huge rock. The huge inertia caused the stone to roll in the crowd, extremely rapid, and rolled out more than twenty steps in a row. The Turkic soldiers desperately dodged to both sides, but fifty or sixty people died under the collision of the huge rock, and hundreds of people were injured, with broken bones and broken tendons, and wailing sounds.

Immediately after the second and third rounds, the fourth round of the catapult was shot. Accompanied by the Sui army's crossbow, arrows on the top of the city were like rain, and heavy casualties were heavy. Every huge rock was hit, which would bring hundreds of casualties. It was simply a machine to massacre people, bringing a catastrophe to Sijie's army.

Zhang Xuan divided the three northern counties into three war zones, Yanmen War Zone, Mayi War Zone and Loufan War Zone, led by generals Yuchi Gong, Li Jing and Pei Xingyan, and coordinated by his own general manager.

Li Jing was originally responsible for the Shanyang War Zone, but considering that Li Jing is better at fighting strange weapons and Yuchi Gong is good at defending the city, Zhang Xuan thought about it over and over again and finally exchanged the war zone where the two of them were responsible for a month ago, and the Mayi War Zone was replaced by Yuchi Gong.

With sufficient combat preparations, the Sui army installed the world's most advanced catapult in Shanyang County, causing huge damage to the attacking Turkic army. The battlefield was full of corpses, with smashed bodies everywhere, smashed heads, and blood flowed into a river, dyeing the smashed stones red.

At this time, the city-bumped wood had already climbed the hillside and headed towards the city gate step by step.

Because Han Qianhui and others ignited the beacon in time, Yuchi Gong received news of the loss of the Zihe Great Wall in advance and seized the initiative in defense deployment.

A kind of black lime fat is produced in Mayi County, which is the oil of later generations. However, Mayi County produces too many lime fat impurities and is too viscous, which is not suitable for military use. Instead, it is used as a paste cart, that is, axle lubricant, and can also be used to make torches.

However, through comparison of the lipotato collected from various places, the Sui army found that in Fushi County, Yan'an County, produced fewer lipotato impurities, clear oil, and strong combustion. It is called "Gaonu Oil".

The Sui army used 500 sets of armor to exchange for 5,000 barrels of high-slave oil from Song Jingang and stored it in Shanyang County.

Just early this morning, Yuchi Gong sent someone to dig ten shallow ditches on the soil slope, poured five hundred barrels of high slave oil, and covered it with a layer of thin soil.

At this time, Yuchi Gong saw that the enemy's city-hit tree had already climbed the slope, and immediately ordered: "Prepare for fire attack!"

The Sui army immediately transferred five medium-sized trench balls and installed five fire cloth dry balls. Five soldiers lit the oil-soaked cloth balls with the fire. As the pitcher shouted, five large fire balls were burning at the rushing city wood two hundred steps away.

The fire ball smashed into the crowd, ignited the stone fat on the ground, and suddenly formed a sea of ​​fire. Countless people were ignited by the fire and became firemen. They opened their arms and ran around wailingly. Without taking a few steps, they fell to the ground. The fire burned them to the point of curling up.

The fire attack of the Sui army caused a fatal blow to the city-killing wood. As the fire spread, the huge city-killing wood was also ignited. A large number of soldiers transported to escape. The city-killing wood hit the ground and was engulfed by the raging fire.
Chapter completed!