"Rush forward!" With the chanting of a general, rows of soldiers carrying ladders rushed to the city wall, and then erected the ladder on the side of the wall and began to climb up desperately, and the Goguryeo soldiers on top used a special long rod to push the ladder out of the city wall, but because the number of ladders is too much, even if one is missed, there will be a steady stream of Tang soldiers and soldiers pouring up to the city.

What's even more terrifying is that Cheng Yanjin used almost all the siege vehicles that could be used this time, one by one trees by the city wall, these siege vehicles are tall and heavy, and they can't be pushed away at all, even if they are shot with crossbow arrows and smashed with stones, it is difficult to destroy these solid siege vehicles, the only way is to burn them, but the fire oil was almost used up before, and the siege vehicles were also drenched with water in advance, and they couldn't be lit without fire oil.

"It seems that Zhijie is not bragging, maybe we can go to Anshi City for dinner tonight!" Li Shimin, who was watching the battle from afar, also said with a smile at this time, he didn't expect the attack to be so smooth, when Cheng Biting Jin pressed all the troops up, the Goguryeo people at the head of Anshi City gradually lost their support, and now they are showing a defeat.

"There are no reinforcements outside, no supplies inside, I'm afraid anyone will not be able to support it!" Li Ji also nodded in agreement at this time, he had been carefully observing the situation on the city through the telescope just now, and now he also felt that Cheng Yanjin was almost in control, and Anshi City was almost in their hands.

Li Xiu frowned when he heard this, although on the surface, the Tang army did have an advantage, and it could even be said that Anshi City was in danger of breaking the city, but he always felt that something was wrong, after all, Anshi City was able to block Li Shimin's tens of thousands of troops in history, no matter how the Tang army attacked, it couldn't be defeated, how could it be broken so easily?

Just when Li Xiu was puzzled, he suddenly only heard a noise at the head of Anshi City, and Li Shimin and Li Ji, who were observing the city, also exclaimed, which made Li Xiu also hurriedly raise his binoculars to watch, only to see a group of Goguryeo elite soldiers rushing up from nowhere on the head of Anshi City, and they held canisters of fire oil in their hands, kept igniting them and threw them on the siege vehicle, and as a result, the siege vehicle was burned into a big torch in the blink of an eye, and the soldiers who attacked the city immediately became rootless water, and they couldn't escape if they wanted to.

"Hit the mark!" Li Ji couldn't help but exclaim when he saw this, he didn't expect that Anshi City on the opposite side deliberately set a trap to make them think that the fire oil in the city had run out, and as a result, he took out the fire oil at the most critical moment, not only burned the siege vehicle, but also trapped the soldiers who attacked the city head in the city.

Li Shimin's face was also gloomy when he saw this, especially when he saw that the soldiers who had already attacked the city were wiped out little by little, and then the corpses were thrown down the city, his face became worse, and Li Xiu, Li Ji and others were also silent at this time, after all, there was no need to touch Li Shimin's moldy head at this time.

Seeing that the soldiers who attacked the city were about to be wiped out by the Goguryeo people, but at this moment, suddenly I only heard a loud "boom" at the city gate, and as a result, the city gate was filled with smoke and dust, and I couldn't see what was happening there at all, and I could only hear the screams of countless Goguryeo people coming from the smoke and dust.

"Great, General Cheng has finally used gunpowder!" After all, Li Daozong was young, and at this time he finally couldn't help but shout, the explosion at the city gate was caused by gunpowder, and it was also a very rarely used siege tube, the so-called siege tube was actually a huge tube, which contained hundreds of catties of gunpowder, which was generally only used to blow up the opponent's city wall or city gate, and the power was very amazing.

"Zhijie is really calm, and he didn't use it until now!" Li Shimin saw that there was a change on the battlefield again, and it was still in favor of his own side, and his face became much better at the moment, and even he had found that the Goguryeo soldiers on the city were already scared silly, which gave the Tang army soldiers trapped in the city also time to gather, and then desperately rushed to the place where the explosion occurred, because they knew that the brothers below would definitely not let go of this opportunity to rush to the city, and they would have reinforcements at that time.

With a gust of south wind blowing, the smoke and dust caused by the explosion slowly dispersed, and only then did Li Xiu and the others find that the original gate of Anshi City had disappeared, replaced by a collapsed city wall, it seems that Cheng Yanjin must have used more than one siege tube, otherwise it would not have caused such a big damage.

The city gates were blown down, which made the Tang army because the siege vehicles were burned, which led to a decline in morale, also rekindled hope, and now countless Tang soldiers desperately rushed to the collapsed city wall, and the Tang soldiers trapped in the city also desperately killed there, began to clear the road for the brothers below.

Generally, when the city wall collapses, no matter how strong the city is, it can't hold it, and Cheng Yanjin commanded the Tang army to kill the gap at the city gate like a tide, and it was about to rush into the city, and the army on Li Shimin's side was also ready, as long as it could hold this gap, the reinforcements behind would attack it in a big way, so as to capture Anshi City in one fell swoop.

However, when the Tang army rushed to that gap, they suddenly saw a wave of Goguryeo soldiers pouring out of the city, these Goguryeo people also knew that life and death were at stake, so they were more heroic than usual, even if they died with the Tang army, they refused to take a step back, and at this time, the Goguryeo soldiers in other places also reacted, and they killed along the city wall, and for a time the two sides started a cruel battle on the ruins of the city gate.

The gap in the city gate that was blown up is not very large, about twenty or thirty steps wide, and too many troops can't be opened at all, so it has become a killing ground for elite soldiers, often the Tang army finally killed all the Goguryeo people who poured out of the city, thinking that they could occupy this gap, but then a wave of desperate Goguryeo people poured out of the city, pushing the Tang army out again, and the two sides fought for each other in this narrow area, and the dead bodies on the ground were stacked layer by layer, and finally hit until it was almost dark, and this gap was not taken down, And the corpses on the ground are about to close the gap.

Seeing that he had such a big advantage, but he couldn't beat it, Cheng Biting Jin was also mad, and immediately ordered to fight at night, but at this time, after a whole day of fighting on the Tang army's side, the physical strength and morale of the soldiers had reached the limit, of course, the Goguryeo people in Anshi City were estimated to be the same, but no one knew how long they could hold out?