Hearing Li Yuanba's imageless roar, Jiang Song was still calm and completely unmoved.

Holding a spear in his hand, the sharp battle intent was revealed, facing Li Yuanba's domineering momentum. Maybe Jiang Song is slightly weaker than Li Yuanba in terms of force, but at this moment, he is on an equal footing with him.

Seeing that Jiang Song had no intention of retreating, Li Yuanba seemed to be really angry, glaring angrily, full of murderous energy. The drum urn and the golden hammer were swung out, and they went all out, without sparing the slightest hand.

But on the battlefield, this is a common thing, and Jiang Song has never despised Li Yuanba. Even if he wants to retreat, he must retreat after fighting, even if he is difficult to defeat Li Yuanba's double hammer, self-protection is not a problem.

Moreover, Jiang Song had fought with Li Yuanba before, and knew that his divine power was unparalleled, if he chose to fight with him, he would undoubtedly be asking for hardship. If you want to fight with Li Yuanba, you can only use skill.

In this way, Jiang Song's spear and Li Yuanba's double hammer touched, and the astonishing power made his expression change slightly. But Jiang Song's spear turned around, but he didn't die with him, and turned into a few cold rays and came out of Li Yuanba's vital point.

Although Jiang Song's marksmanship is powerful, Li Yuanba is not an easy person, although he is confused, his talent in martial arts should not be underestimated. He knew that his strength was strength, and his speed was his weakness.

Therefore, Li Yuanba brazenly withdrew the drum urn and golden hammer, and directly forced Jiang Song's strong attack to retreat. Even he chose to take advantage of the victory to chase and suddenly broke out.

Jiang Song's eyes condensed slightly, and he also turned the spear at a rapid speed, entangled with Li Yuanba. During this time, he has not wasted his time, he has been practicing martial arts diligently, looking for a way to restrain Li Yuanba.

The two of you are attacking back and forth, although Jiang Song is still passive, he can see that Li Yuanba is not so comfortable. After all, the cold of the gun is too tricky, and it is impossible to guard against it.

But the gap between the two still exists, and Jiang Song knows that continuing to fight is just to increase consumption. Luo Cheng still has follow-up preparations, so he doesn't have to wait too long here.

Seeing Li Yuanba's double hammer smashing suddenly, Jiang Song suddenly turned around and shot away. Li Yuanba was about to pursue, but he was stopped by Li Shimin's shout, so he could only look at Jiang Song and the others angrily.

With Li Yuanba's help in the war, it was undoubtedly to pull the situation back a little, and all the enemy troops who attacked were expelled, and the situation finally stabilized, and Li Yuan couldn't help but breathe a sigh of relief.

But before he could come to his senses, when he glanced down, some behemoths suddenly appeared in the enemy's formation, and they turned out to be catapults. The corners of Li Yuan's mouth twitched slightly, his eyebrows were tightly raised, and he looked speechless.

When Li Shimin saw this scene, he was also surprised and said: "When I was in Tongguan, the enemy army used catapults, but the city wall of Chang'an is strong, so I don't think there will be any big problems. ”

Looking at the catapult in the ground array, Li Yuan had a vague bad feeling, but he couldn't say why. I can only listen to Li Shimin's words, hoping that this wave of enemy offensive will not cause any accidents.

Even if Li Yuan prayed in his heart, he still underestimated Luo Cheng.

Since Luo Cheng dared to pull the catapult out, he must be sure, how could it be as simple as Li Yuan and his son thought?

Seeing Jiang Song leading the people to retreat temporarily, a cold light flashed in Luo Cheng's eyes. Li Yuan actually buried gunpowder outside Chang'an City, which really surprised him a little, and also made him slightly angry.

Of course, this can be regarded as Luo Cheng's mistake, he didn't expect Li Yuan to improve the gunpowder again during this time, so that the soldiers did not find out. If it weren't for everyone's timely response, I'm afraid the loss would have been more than that.

But there is a debtor and a debtor, and the two sides are already mortal enemies, and it is normal for Li Yuan to ambush. But what can he still do, Yan Yun's army is not a decoration, this is the time to show his might.

Catapults are the weapon of the siege, but the protagonist is not the main character, and the gunpowder, which has been improved several times, is the key player in this battle. Luo Cheng was also curious, what would Li Yuan's reaction be?

After all, now Li Yuan also has a gunpowder formula, and he has even used it in battle. But what is certain is that he must not have known that Luo Cheng also had gunpowder in his hands.

It was originally a secret in his own hands, but it was suddenly exposed, and I am afraid that Li Yuan will also be terrified. In particular, the power of this thing is even more terrifying than that produced by his own family, which is too ridiculous!

After all these words, after Luo Cheng looked at the city tower, the corners of his mouth rose slightly, revealing a strange smile. Then he waved his hand lightly and said in an indifferent tone: "Let's do it!" ”

Luo Cheng took the Ling Qi, and he suddenly raised his arms on top of the shock, which was extremely distinct. Directly passed the order to the Snapdragon Army who was operating the catapult, and Yao Ping was in command.

Although the catapult is simple, throwing gunpowder is very important, and it is impossible for Luo Cheng to give it to others at will. The operation method of the Snapdragon Army naturally knows that Yao Ping is also Luo Cheng's cronies, which is just right.

In this way, in Yao Ping's deep eyes, preparation, ignition, and throwing were done in one go. Under the stunned gaze of the defenders, they drove the black, unreal thing straight to the castle tower.

This wave of operations of the enemy army made Li Shimin a little confused, but his eyesight was excellent, and when he saw the flying things, he couldn't help but change color slightly, and he hurriedly said to Li Yuan: "Father, be careful, this is not an ordinary trebuchet. ”

Li Shimin quickly thought of some joints, since he was the commander of Luo Cheng, how could he have no other preparations? There must be something wrong with this trebuchet, even if he can't tell.

As soon as Li Yuan heard Li Shimin's words, he was not calm for a moment, his understanding of Luo Cheng was far from Li Shimin's. At this moment, he did not have the slightest suspicion, and hurriedly led people to retreat.

At this moment, the existence like a black meteorite smashed mercilessly on the city tower, smashing the surrounding defenders to pieces. If only that's it, after all, the scope is limited.

But in the stunned eyes of everyone, the black thing exploded directly. An incomparably familiar smell came over, making Li Yuan and his son stunned for a moment.

They had been exposed to gunpowder for a long time, so it was impossible for them not to recognize it. This panic soon became a question in the hearts of Li Yuan's father and son, why Luo Cheng also had a thunder punishment, and it seemed so different.

"How is that possible?" Li Yuan's face was frightened, and he said very uneasily, and even looked at Li Shimin. He wasn't sure in his heart, had the secret recipe for gunpowder been leaked?

In fact, Li Yuan did not suspect Li Shimin, but when he was unsettled, he chose to ask Li Shimin.

Compared with Li Yuan, Li Shimin quickly forced himself to calm down, looking at the chaotic city towers, the frightened soldiers, and even the smell of gunpowder smoke in the air, and fell into a deep groan.

After hearing Li Yuan's words, Li Shimin said indifferently: "Father, it seems that we underestimated Luo Cheng, I'm afraid that when he was in Yangzhou, he had already obtained the formula of thunder punishment." ”