The cold wind swept with snowflakes and passed over the sky above Wu Pass. The inside and outside the pass were divided into two worlds: yellow and black. It took more than a month for the Zhou army in Shannan to finally arrive at this pass that was heavily guarded by the Sui army.

Wuguan Pass City is located in the north of Shaoxi Mountain and the Wuguan River Valley in the south. It is called Shaoxi Pass in the Spring and Autumn Period and was renamed Wuguan during the Warring States Period.

Crossing the Qinling Mountains to Guanzhong and the Jingxiang area in Shannan, Wuguan is a must-pass place, a place that military strategists in history must fight for, and it is also the place where the Zhou and Sui countries are now fighting for. In order to block the speed of the Zhou army, the Wuguan defenders racked their brains.

Various strategies such as blocking roads, falling rocks, harassing, and night attacks emerged one after another, but the effect of the tired soldiers was not very good. The Zhou army still arrived outside Wu Pass slowly and firmly. The war was about to begin, and the Sui army was ready.

Wuguan is very important, and there is no doubt that in order to defend against stone casting and thunder, the Sui army has rectified the city defense of Wuguan in the past two years. Needless to say, the city wall is thickened, and the arrow tower is moved back and reinforced. The archers on it do not shoot outside the city, but shoot at the top of the city.

Trenches were dug before the pass and filled with river sand.

If you want to dig a tunnel and dig it up, it is delusion. Unless it is digging deeper than a trench, but even deeper it is a stone, which cannot be dug by manpower at all.

The Zhou army used catapults to attack the city, and the defenders used catapults to counterattack. They could command the observation posts at the top of the city, and the catapults were protected by the city walls, but the Zhou army could not do this.

If the Zhou army wants to take down Guancheng, they have to make a living. So what if the two sides spend several months? The Wuguan Guards are not alone and helpless.

The news of the opponent's invasion had already spread to the west through beacon towers and fast horses, and it reached Chang'an outside the western end of Wuguan Road. The emperor would not sit idly by and watch the capital be in danger, so a steady stream of reinforcements would rush to Wuguan.

The enemy army in front of him was the Zhou army in Shannan. The Sui army understood the intentions of the other party very well, that was to attack Wuguan, create a situation approaching Chang'an, attract the Sui army in the capital, and support the main force in the direction of Luoyang.

Since it is support, the number of troops invested will not be too much, so we can only spend it here. The final result is that the Zhou army cannot spend it and withdraw its own troops. Therefore, the Wuguan Guards are very confident that they will let the Zhou army return in a defeat.

Perhaps it was because Wuguan was ready to attack so easily, the Zhou army did not rush to attack today, but continued to build siege equipment, but did not have the stone-capping machine that the defenders imagined.

There are ladder trucks, nest trucks, j cars, but they are not seen. Of course, the production site may be blocked, making it impossible for the defenders to see it.

But does this make sense?

Several sentries with excellent eyesight stood at the wall of Wuguan, trying their best to look at the Zhou army camp, trying to see if the other party was doing something, but it was just that way, and the other party didn't build a stone-treating machine, which surprised them.

If you think it’s useless, you won’t use it? It shouldn’t be.

The wood hasn't been cut yet, so how many days will it take? It's very likely.

The sentries soon discovered that the peripheral army outside the pass was building a strange wooden shelf in an open area, similar to using two bamboo poles to hold a bamboo with the end of the bamboo on the ground, and the other end was raised by a bamboo pole, aiming at the direction of Wuguan.

These things are more than the shooting distance of the catapults in the city, and they cannot be shot with powerful crossbows, so the defenders cannot disturb the opponent's actions. However, the farthest attack distance these days is the Zhou army's large crossbow, but these things do not look like them at all.

"Do you want to report this situation to the general?"

"Report? How do you report? If the general asks what this airs are, what do you say? He said he doesn't know? He doesn't know what you report?"

"But there are more and more airs, densely packed."

The sentry was right, there were more and more shelves outside the pass, densely packed and looked a bit cunning.

Zhou Jun did this, definitely not to dry clothes, the only thing that could be confirmed was that it had something to do with siege.

One of them turned around and ran down the city, but before he could take a few steps, he heard a shrill whistling sound from outside. When he looked back, he saw a ball of fire rising from the Zhou army's position, pulling white smoke flying towards Guancheng like a meteor.

After crossing the city wall and falling into the city, a loud bang came out and a fire light came out. The movement stirred the soldiers on the top of the city, and they couldn't understand what was going on.

Before our team could suppress the bullet, several balls of fire rose from the Zhou army's position, and they also roared and pulled up white smoke and flew towards the city. They still fell into the city and then emitted explosions and flames.

"What kind of magic is this!"

Some soldiers became panicked and were scolded by the generals loudly, but the other soldiers were also surprised to see this scene. The noise in the city was louder and louder, and many people were putting out the fire.

"Don't panic, this is Zhou's thunder, but..."

The whistling sound came again, and this time more than a dozen balls of fire flew over. The soldiers of the Sui army could see clearly that they were long sticks as thick as big bamboo. They sprayed fire and pulled white smoke across the city wall and landed in the city.

"It's the Zhou army that is going to attack the city, fight right away..."

A general shouted, but before he could finish his words, his voice was drowned out by the noise. A whistling sound broke out from the outer wall of Wuguan. The entire position was covered with white mist. Countless fires rushed out of the white mist, roaring into the sky, crossing the city wall and falling into the city.

It seemed that the heaven was angry, and it spread out meteors all over the sky, turning into fire rain and falling into the city. The loud noise kept coming, just like the sudden rain in summer falling on the water, crackling and crackling.

The Sui army soldiers on the top of the city were so scared that their faces were as white as paper, at a loss, and they talked to each other, but couldn't hear clearly what the other party said. Fires were rising in the city, and countless white smoke rose everywhere, and the cold wind brought a pungent smell.

The generals shouted to prepare for the war and prepare to welcome the Zhou army's attack on the city, but the movement of the Zhou army's positions became increasingly louder and louder. The firelight flew towards us like countless disturbing fireflies, not only flew into the city, but also to the top of the city.

An unlucky person was hit by a long stick as thick as a thigh and knocked to the top of the city. Then the long stick exploded with a bang, and the splashed flames were everywhere.

The small flame was about to expand, and the soldiers who rushed over used a mop soaked in water. As a result, the flame seemed not afraid of water and was also stained with a mop. Someone accidentally touched the flame and was in a mess before extinguishing it.

No one had time to figure out what was going on, because more and more things were flying over the Zhou army's positions, and fires were rising in many places in the city, and some of the arrow towers that had specially wet the exterior walls had begun to burn.

Fires began to catch on the top of the city, and many soldiers turned into firemen, crying for help. The companions who came forward to help put out the fire soon became affected. The flames spread like a plague, and the scene was in chaos.

Wu Pass was shrouded by meteor fire, turning into a sea of ​​fire. Behind the Zhou army's position, Yuwen Liang, a large-scale Shannan Road station wearing armor, looked at the sky-storming flames and looked calm. On both sides of him were stunned generals.

"Daxingtai, Wuguan has been lit. Will the launch stop?"

"No, according to the previous plan, all the rockets set up were launched." Yu Wen Liang said without hesitation, "Let the soldiers prepare and attack the city later!"

"yes!"

The cold wind blew, bringing a pungent smell of gunpowder. Yuwen Liang heard the shouts from the direction of Wuguan from the wind, including howling, horror, and the painful neighing of war horses.

"The Rockets and Flame Bottle are indeed powerful, but..." he murmured to himself, looking a little heartbroken, "It's too expensive..."

"Father, compared to Chang'an, this is worth it."

One person around him said that it was Yu Wenliang's eldest son, the chief supervisor of Xiangzhou, and the prince of Qi Duke Yu Wenming.
Chapter completed!