The whistling sound brought by Datang's unique arrows filled the battlefield with a tense atmosphere.

Sun Daiyin looked at the situation below with a serious face, the archers of the Tang Dynasty were constantly throwing arrows in the direction of the city wall, Sun Daiyin had already heard many screams, and the power of these arrows was far stronger than Sun Daiyin imagined!

The only good news is that Datang doesn't know why, but he just sent out a group of strange shield soldiers, from a distance, it was two strange carriages that formed evil, but the carriage was pushed over by the soldiers, and the outside was tightly blocked by some huge iron shields.

Their counter-arrows could not reach the enemy's archers, but now there was nothing they could do against the group of soldiers who quickly arrived below the walls.

Although there are a lot of rolling logs and stones on the wall, even if they are thrown down, they may not cause many casualties to the enemy.

He could already see that the shield was very strong, and there seemed to be some special support rods underneath it, and they couldn't do any damage to the enemies below.

The only thing that could hurt them was the fire oil, which was made up of animal fat and fat that ignited and poured straight down, but to be honest, the effect was mediocre.

Because the opponent's shield is not the kind of single shield, but the kind of shield with a very large area, the oil will be directly swept away from the side when it falls, and the threat of the oil to the iron shield is also limited, and the opponent only needs to retreat in an orderly manner.

The fire oil is more powerful and effective in killing the infantry, mainly because it is full of deterrence, after all, the screams brought by the flames burning on the human body can greatly deter the enemy's morale.

It's just that they don't have much fire oil to prepare.

Datang did not attack with all his strength, but only continued to suppress through bows and arrows, but even so, many soldiers on the city wall were injured or even killed, and most of the soldiers hid their bodies under the female wall......

Fortunately, the other side did not seem to have any intention of making a move, and after the shield soldier approached the wall, the archers of the other side even retreated.

But why is this strange shield cart heading in the direction of the river in the city? Could it be that they want to dive into the river? It was impossible at all, the bottom of the river was a fence made of arm-thick iron bars, and the fence was located in the middle of the city wall, so people could not enter it at all.

The river at the level of the city wall is not high from the top even during the dry season, and it can be directly submerged if it is in the wet season, so it is impossible for them to dive into the river.

Sun Daiyin watched as the other party's car was constantly approaching the direction of the river flowing out of Liaodong City.

This river is the drinking water river of Liaodong City, which flows into the city from the Liao River next to Liaodong City, circles around the city and then flows out, and finally returns to the Liao River.

Liaodong City does not have a moat, because for the area of Liaodong City, most of the year is in the freezing period, the role of the moat is not large, and if the scale of the moat is not large, it is actually easy to be filled by the enemy, and the moat that is too large, to be honest, Liaodong City does not have that condition.

Li Shiji looked at the two shield carts with a calm face, escorting a unique round iron carriage in the middle to the drinking river.

All they had to do was push the car straight into the river and stuff it into the waterway. As for the rest, don't worry, because it is said that there is a waterproof fuse or something, and it can burn in the water anyway, so don't worry.

When the shield cart reached the bottom of the walls, it began to throw large pieces of wood and stones down frantically.

But the support rods carried under the large shields under the entire shield cart had already been propped up on the ground, because the river was wide enough, so the things on the carriage were not pulled down, but were directly stuffed into the riverbed below the city wall along with the carriage.

When eight or nine soldiers tried their best to stuff it in, the soldiers who remained on the shore waited for their comrades to come ashore and lit two fuses without saying a word, because the fuses were a little long, so as to avoid accidental extinguishing due to stones and woods.

Although this probability is very low, it is not impossible, so the two fuses are more secure.

When the fuse is lit. The dozens of soldiers on the two shield carts had already been prepared, and they directly pulled the shield carts frantically and ran back.

Because after leaving the city wall, the only thing that Goguryeo could threaten them was basically bows and arrows, but bows and arrows could not even penetrate the armor on their bodies.

So at this time, even if there are some gaps between the shields, it doesn't matter, they can't really shoot directly in.

But if you run slowly, the result will be different.

Sun Daiyin stood on the city wall and watched this scene dumbfounded, he always had a bad premonition, but he couldn't say what it was.

What did Datang throw into the water?

Looking at Sun Daiyin who was standing in the city tower, Li Shiji shook his head, Liaodong City is very large, so the four main city gates all have urn cities, which is why Li Shiji did not directly choose the city gate hole.

If there was no urn city, the car would have been delivered to the city gate cave by now, and it would be easier to send it there.

"General Li, is this thing enough?" Hou Junji subconsciously licked his lips and asked, because he had already tried it in the queen kingdom and the country of Pi.

It's so easy to use.

And it is said that this time it is the latest, and the things he used in the Queen's Kingdom are all human-carryed, and the power is not as great as this, and this thing is said to be much more powerful than the one they used in the Western Regions.

It is said that the contents have been improved many times.

Everyone was waiting quietly, the soldiers on the city wall were a little inexplicable, although they didn't know what it was, but there were still many people who threw a lot of stones somewhere.

However, he was soon stopped by the officers on the city wall.

"Don't worry, it's definitely enough, according to the data sent by the Ministry of Intelligence, this wall of theirs can't withstand the broken city mine at all, and there are 400 kilograms of yellow explosives in it." Li Shiji nodded, this thing is said to use the latest gunpowder, what is it called yellow explosive.

It is said that there is a more powerful one, called Black Sokin, and it is said that the Academy of Sciences likes to call it by its nickname, Black Impermanence.

But the cost of black impermanence is a bit high, and it is not as cheap as the yellow explosives that come from now.

Li Shiji doesn't know this, but it doesn't matter, as long as it's easy to use.

Just as Hou Junji was about to say something, suddenly, a flash of fire flashed within their line of sight, and then a fierce red flame surged out from under the city wall.