"Boom!" The generation that exploded just now caused a loud noise again, and the entire city wall trembled. This time, the casualties of the Goguryeo people were much less, but the city wall continued to be seriously damaged. "Woo¡ª¡ªpoof¡ª¡ª" Yeungai Suwen spit out a mouthful of blood on the wall of Liaodong City, and then finally stood up from the ground reluctantly. When Yeon Gaesumun was running away just now, he clearly felt a force hitting him from behind. And this force was so huge, it was like a heavy hammer hit his back, causing him to vomit a mouthful of blood. And Yeon Gaesumun also knew that this should be the blast of air that exploded just now. Fortunately, I ran fast, otherwise, instead of vomiting blood, I would have fallen apart. Therefore, Yeon Gaesumun could be considered as having a narrow escape from death. ¡°It¡¯s enough to leave only a few people on the tower, and everyone else should retreat.¡± Yeon Gaesumun said. "Yes!" Those Goguryeo soldiers quickly retreated. They did not want to face weapons like Datang's. After all, these weapons were too sharp. "Keep bombing! Concentrate your firepower, concentrate your firepower, and blow up the same place on the city wall!" Li Xiaogong shouted. "Boom!" Thirty flying thunder cannons fired shells again, and then they all hit a section of the city wall. This section of the city wall has been blasted to the point of cracking, and the contents inside have begun to be exposed. And inside the bluestone shell outside, they are actually ordinary bricks, not all city walls made of bluestone. Originally, the Goguryeo people thought that it would be enough to wrap it with a bluestone, because the hardness of the bluestone was enough to withstand those catapults. After all, the power of the stones thrown by the catapult is limited, so some bluestones are enough to block the huge stones of the catapult. In addition, the soldiers also have a variety of sufficient weapons to defend the city, which is enough to defend the city. But now the Tang army actually used a flying thunder cannon, which blasted open the shell of the bluestone, and then exposed the city wall made of bricks inside. This is equivalent to breaking the egg shell. The inside is actually vulnerable and cannot withstand this flying thunder cannon. "Okay. I originally thought this city wall was so awesome, but I didn't expect it to be an embroidered pillow and a bag of straw. We just used bombs to blow it up. Since the layer of bluestone outside can't stop it, these waste bricks inside can't stop it at all. Can't hold up our cannon!" Jing Wen shouted. Li Xiaogong next to him sighed and said: "With this flying thunder cannon, of course it will be easy for us. But if we don't have this flying thunder cannon, then I'm afraid we will have to use human lives to fill it." Although this There is only one surface layer of bluestone, but its hardness has reached the peak of ancient times. So if it were the situation in the past, it would have been impossible. As for Yeon Gaesumun inside the city, he was so anxious that he was obviously very dissatisfied with this situation. "How's it going?" Yeon Gaesumun asked. And his entourage immediately said: "The Tang army concentrated all the unknown weapons at one point. That is inside a section of the city wall. The bluestone outside this section of the city wall has been broken, and now the bricks inside have been exposed. If we let them continue like this, we may not be able to deal with it at all. Once the city wall collapses, we may have a serious vulnerability in our defense line, and we will be really unlucky." "Then shall we? Go out to fight?" Yuengai Suwen asked. "General, no. If we go out to fight, then I'm afraid the Tang Army is waiting for us! You see, the Tang Army's cavalry has begun to prepare, waiting for us to go out to fight. And if our infantry fights with the Tang Army's cavalry, then we are probably not the best at all. Opponent!" the attendant said. Now Yeon Gaesumun is really at a loss to advance or retreat. Yeon Gaesumun originally thought that this city wall was enough, but now it seems that this seemingly incomparable city wall is actually vulnerable. Under the explosive weapons of the Tang Army, the city wall had no resistance at all. It had only been two rounds of bombing, and the bluestone shell outside had been smashed open. The city bricks inside were exposed. And these city bricks are not fired enough, so it is impossible to withstand the bombardment of these artillery. And if you stay in this Liaodong city, I am afraid that after the Tang army breaks through a gap, a large number of troops will pour in. As for Goguryeo, there are currently only 10,000 people in Liaodong City. But it is impossible to be the opponent of hundreds of thousands of Tang troops. So if you stay, you may be seeking death. But if you go out and take the initiative to fight, this is also an act of seeking death. Because the Tang Army's cavalry could defeat them with a single charge. Originally, Yeon Gaesumun thought that his city was very strong and there would be no problems at all, so he did not ask for support from the rear. But now it's too late for reinforcements to arrive.Because the city wall may have been breached, it will be too late for reinforcements. "Sir, retreat quickly! If we don't retreat, I'm afraid we will all die here. Now the Tang army is surrounded by three and one is missing, which means we can retreat. But if we don't leave, then we will really all die here!" the attendant said. Yeon Gaesumun sighed and said, "Okay! Retreat! However, after we retreat, we quickly asked our father to mobilize troops to fight the Tang Dynasty people. We will wait for them in Anshi." Soon, Goguryeo in the city The troops were also preparing to retreat. After all, there are only about 10,000 people on our side now, but once the protection of the city wall is lost, it will be vulnerable. Originally, the rear wanted to send reinforcements to support them, but this was because Yeon Gaesumun wanted to monopolize the credit for resisting the Tang army, so he did not ask for reinforcements at all. So now it's up to you, there are no reinforcements, and the city wall is unreliable, which allows the Tang army to crush them to death at any time. Yeon Gaesumun left from the north gate, then looked at the Liaodong City and cursed: "If you hadn't relied on these mysterious weapons, I'm afraid that even if you came with an army of millions, I would have been able to drain your blood. Rely on Who is a hero if he wins with weapons?" No matter what Yeon Gaesumun thought, they could not hold Liaodong City, so Yeon Gaesumun had no choice but to retreat in order to ensure the strength of his men. And he planned to notify the rear to mobilize reinforcements. This time he would not make a fool of himself because Tang Jun was not a soft persimmon. And Yeon Gaesumun also knew that it was unreliable to defend the city, and he could only rely on soldiers to concentrate on the decisive battle. Otherwise, it would be impossible to stay in the city and defend it. (To be continued, please search Piaotian Literature. The novels will be better and updated faster!