More than 200 large cowhide drums were ringing rhythmically and neatly, deafening! Amid the drum sound, more than 300 toad carts loaded with earth and rocks slowly approached the Hulao Pass moat under the strong push of Dou army soldiers. The arrows were as rained as they were nailed to the toad carts, nailing the toad carts into huge hedgehogs. Even with shields, Dou army soldiers were still constantly being caught in arrows and fell down.

On the edge of the moat, the Dou army archers after the incident were not to be outdone. They also tried their best to pull the bow and shoot the arrows, and they desperately shot the feather arrows to the top of the city. The feather arrows in the sky came and went like locusts, and the dense feather arrows almost blocked the sun. The feathers on the city were as dense as reeds beside the river bank. The Sui soldiers on the city were also constantly being killed and injured.

When the Dou Army's toad convoy approached within 80 steps of the city wall, the war drums on the city were ringing. When the city gate opened, two teams of Sui army crossbowmen came out one after another, and quickly spread behind the sheep and horse wall with their bodies, and then shot in a straight line. The Dou army soldiers behind the long shield and behind the toad cart could not dodge and were shot down a lot. The chariot soldiers hurriedly used shields to protect the two wings, and the Dou army's long shield hands quickly protected the wings. At the same time, the Dou army's archers also shot even more crazily at the Sui army soldiers who emerged from behind the sheep and horse wall. The crossbow battle entered the most intense white-hot stage in an instant.

Dou Jiande's army was extremely determined to siege the city. After more than 300 soldiers suffered casualties, Dou Jun's toad cart poured the soil into the moat one after another. More than 200 cars of soil also filled several sections of the moat in a short time. After dumping the soil, another team of Dou soldiers holding an axe and hammer shield rushed towards the moat. Seeing this scene, Yin Kaishan, a veteran Taiyuan on the top of the city, was not surprised but happy, and hurriedly said to Li Keshi: "Wang Fubao is right. Dou Jiande is indeed not good at attacking. He is too anxious. The number of toad carts is so sufficient that he didn't have the patience to wait until the moat is completely filled, and he directly invested troops to attack our deer antlers and horse-resisting fortifications. He wanted to speed up the attack as much as possible. We have to fight this battle!"

Li Keshi nodded, agreed with Yin Kaishan's judgment, and ordered the pine cannons in the city to adjust their positions and prepare. When the Dou army infantry rushed to within 80 steps, Li Keshi waved the flag and seized eight pine cannons from Zheng's army at the same time. In the explosion sound that was louder than the war drum, countless pebbles shot at the Dou army infantry in the flames. Although the Dou army infantry was protected by round shields, they could protect their faces, chests, and waists and abdomen. They were immediately bombarded by the stone bullets coming from the ****. When the formation was chaotic, the Sui army crossbowmen behind the sheep and horse wall also caught the opportunity and shot down more Dou army infantry accurately.

As Yin Kaishan expected, although the power of the pine tree cannon was far less powerful than that of the bronze cannon, after suddenly using it, the soldiers of Dou army who had never seen such a weapon were still greatly affected. The generals and soldiers rushed to flee. Dou Jiande, who was more than a mile away, was so shocked that he stood up from the imperial chariot and blurted out: "What is that? Could it be the legendary Chen Zhe Cannon?"

Zheng Army General Yang Gongqing and Wang Xingben, who knew the background of the pine cannon, hurried forward and briefly explained the various situations of the pine cannon to Dou Jiande, especially the detailed introduction of the lethality of the shotgun effect of the pine cannon on the dense formation. Dou Jiande was furious when he heard this and roared: "Why didn't you say it earlier? If you had known that the Chen thief army had some weapons, would I have been so soon to attack the antler fortifications?"

When Yang Gongqing and Wang Xingben heard this, they complained, thinking that it was difficult for us to even meet you, so how could we introduce these details? But under the eaves, Yang and Wang did not dare to say anything. They could only bow their heads and admit their guilt and take the blame. Dou Jiande yelled and ordered the self-army infantry who had previously attacked the deer-antennial horse-resisting fortifications to replace them with the toad chariot with strong defense against long-range weapons and went forward to fill the river, killing many soldiers in vain.

The toad chariot is slow, but its defense and river filling effect are indeed quite good. After three rounds at noon, the moat outside the east gate of Hulao Guan had been filled with fifty or sixty feet, and the road to the bottom of Hulao Pass was basically opened. Dou Jiande ordered the infantry to step forward and attack the enemy on the opposite bank of the moat. Li Keshi was unwilling to lose too much force in the peripheral fortifications, and immediately ordered the withdrawal of the Sui crossbow soldiers behind the sheep and horse wall, allowing the Dou army infantry to rush to the deer antler to destroy the fortifications, and only used crossbows and pine tree cannons to attack the enemy under the city, causing casualties to the enemy as much as possible.
Chapter completed!