With the heavy artillery bombardment, the Goguryeo defenders in those cities also raised white flags and surrendered. And Yuangai Suwen had already withdrawn with the main army, and the remaining army in Goguryeo was only about 1,000 people, and this was also abandoned by Yuangai Suwen in order to prolong the defense time as much as possible. But the defenders were already shocked by the earth-shattering thunderbolt, because they thought they couldn't stop it. Once this kind of cannon bombards down, the city wall will be blown down. Didn't you see that bluestone city wall collapsed? How could their flesh and blood be able to resist it? So they chose to surrender. And the Tang Dynasty also won the first important town since the conquest of Goguryeo, and it was the important town where Emperor Yang of Sui suffered heavy losses here.

"We didn't lose a single soldier and took Liaodong. Back then, Emperor Yang of Sui couldn't take down millions of troops, but now we can conquer it without a single soldier, what a blessing! Li Shimin also hurriedly sighed.

"This all shows that the emperor is wise, and the generals are able to command, and Lord Jingwen invented this flying thunder cannon to achieve such a huge result!" A middle-level civil official immediately patted his ass and said.

"Huh!" Li Shimin smiled.

Li Shimin is very vain now, because Emperor Yang of Sui did not have a million-strong army that could conquer the city, and now he can conquer it without spending a single soldier, which obviously shows that Li Shimin is much stronger than Emperor Yang of Sui, so of course Li Shimin is happy. Therefore, Li Shimin is inevitably complacent now, after all, who does not want to surpass the emperor of the previous dynasty, so as to be able to show that it is reasonable and legitimate for him to replace the previous dynasty, whether it is from the so-called providence or ability, it is in line with the "will of the people". Therefore, two emperors do the same thing, and the result is so different, so it is a matter of ability.

If Jingwen knew Li Shimin's idea. Absolutely shattered. If there was no artillery invented by Jingwen, Li Shimin would not know how many lives would have to be filled in to conquer this Liaodong city. This Liaodong City is simply a super turtle shell and hedgehog, with the original strength of the Tang Dynasty, even if it is conquered, it will collapse several teeth. And now the attack is so smooth, it is not because Jingwen invented the flying thunder cannon, so that the fortified city of Liaodong City has become tofu scum, so every qiē is the butterfly effect brought by Jingwen!

And the leader of the Xi tribe next to him had a bitter melon face, because they lost thousands of soldiers. The so-called Datang conquered Liaodong without spending a single soldier, which was established when the Xi and Yan tribes lost thousands of people, and of course the Tang Dynasty did not lose a single soldier. As for the soldiers of the Xi and Jin tribes, they were all forgotten by Li Shimin and those generals. So obviously, they don't take the Xi and the Yan tribe seriously at all, they all treat them as cannon fodder and consumables.

However, the leader of the Xi clan was also secretly scolding, since the Tang Dynasty had this kind of cannon for a long time, why did he let them attack the city. And the leader of the Xi clan didn't know that Jingwen and Li Shimin actually wanted to consume their strength, and then it would be much easier to turn around and clean them up in the future. As for them, I am afraid that they will not get any benefits at that time, but they will lose their wives and soldiers.

"Your Majesty. We found a lot of warehouses in Liaodong City, and there were a lot of rolling stone and sassagne in them. And there were absolutely no less than 10 million arrows found. In addition, we found a lot of giant crossbows under the city walls, which the Goguryeo people called ten thousand arrows piercing the heart. These giant crossbows are capable of firing hundreds of arrows at a time, enough to kill dozens to hundreds of people at a time. So it's amazing. And there are more than 20 of these powerful crossbows, and there are four city walls in the southeast, northwest, and north. The soldier said.

And when Li Shimin heard this giant crossbow, he was immediately interested, after all, this kind of thing is very powerful. Capable of firing hundreds of arrows at once. And then kill and injure dozens of people, this can be said to be a very powerful weapon. If it is used to defend the city, I am afraid that Datang will really suffer heavy losses. However, the giant crossbow must have cover. If you don't have cover, you can easily get hit by an enemy catapult or some other weapon, and it's useless. And now the Goguryeo people have got these things inside the city walls, so that they can kill and injure a large number of people who come close.

"What a miracle!" "What a miracle!"

The engineering staff officers were amazed at the power of this giant crossbow, because the pull force of this giant crossbow was so great that several horses had to be pulled together to be able to wind it. And the rate of fire is not fast, it takes about a minute to be able to do it once, and the consumption is not small. After all, the cost of making arrows is much higher than the small lead bullets of guns and cannons, and the cost of using this giant crossbow is not low. And Jingwen also happens to know an allusion in Western history, the strength of firearms is not as good as bows and crossbows at the beginning, but because the cost of bullet production of firearms is lower than that of bows and arrows, firearms have been preserved. Therefore, the cost of this bow and crossbow is much higher than that of the cannon invented by Jingwen, and the production cost of such a large giant crossbow may not be lower than that of Jingwen's cannon, mainly because of the production of manual work.

"Jingwen, this shouldn't be as powerful as the cannon you invented, right?" Li Shimin asked.

And Jingwen immediately said: "If you want to talk about the current power, it should be equal." But the rate of fire of the cannons was several times faster than theirs, and they fired crossbow arrows, which cost much more to manufacture than our lead bullets. And our cannon is capable of using a variety of shells, so on the whole it is better to use a cannon! ”

Li Shimin nodded and said, "If you hadn't invented this cannon, then if we wanted to conquer Liaodong City, we would really have to fill it with the lives of soldiers." At that time, we will concentrate the strength of the whole country, and we may not be able to conquer this Liaodong City. It can be said that this qiē is based on Jingwen's merits. Therefore, this expedition to Goguryeo, you are a well-deserved first merit. ”

"The emperor praised it falsely!" Jingwen hurriedly said modestly.

And those civil and military officials were envious, after all, Jingwen raised military spending, which was a first achievement. However, that first merit refers to the first meritorious service, not the greatest merit. And now that there is a cannon, Jingwen is also the first credit, but this refers to the greatest credit.

Now everyone knows that if there is no cannon invented by Jingwen, then their Datang may really suffer heavy losses, and the millions of troops may not be able to conquer Liaodong at that time. I am afraid that this will be very detrimental to the morale of Datang, and even the cost of the conquest will increase a lot. (To be continued......)