"Let's get started!"

After the success of gunpowder bombs and grenades, Li Shimin couldn't help but look forward to it.

Merton nodded, picked up the blue flag of the viewing platform in front of him and waved, and suddenly more than a dozen hundred cavalry soldiers, carrying five huge powder kegs and shields in their hands, rushed to the city gate as fast as possible, piled up the powder kegs in front of the city gate, lit the fuse and suddenly withdrew, hiding in the pit dug in advance.

"Boom!"

In front of everyone's eyes, the fire flashed, and the solid city gate was like paper paste, and a big hole was blown out, and Li Shimin could see the trees at the city gate through the gradually thinning gunsmoke.

The hearts of the generals sank, and they were suddenly cold, and they secretly warned themselves in their hearts that they would defend the city in the future, and they must seal the city gate.

"I didn't disappoint." Li Shimin stood for a long time.

"This explosives package costs 1,000 taels." Merton said again.

"Don't say it's a thousand taels, even ten thousand taels are worth it." Li Shimin doesn't care about the price at the moment, in the siege battles of the past dynasties, breaking through the city gate almost represents the fall of this level, and breaking through a city with a thousand taels of silver, there is no such cost-effective business in the world.

Hou Junji on the side was a little delicious: "When the real war is fought, the city gates are sealed, and it is used at most to blow up the city gates, it depends on luck." ”

Many generals nodded, if the gunpowder weapon is once it appears, it will definitely be a shock to the world, I am afraid that no matter when the city faces the siege of the Tang army, it will learn a lesson and seal the city gate to death.

In other words, it seems that the effect of attacking the city gate with gunpowder weapons is surprisingly good, but it can only be used once, and if you are unlucky, you may not even use it once when you encounter a cautious general.

"Not bad! If the city gate is sealed, this powerful gunpowder will be effective against the city gate, but I am afraid it will be like a boot tickling the city wall! "The eldest grandson Shunde hit the nail on the head, although he believes in the supremacy of cavalry, but after all, he has been fighting on the battlefield for a long time, and he is keenly aware of the flaws.

"You can't say that, if it's a surprise attack, the defender won't have time to block the door, and there will still be a chance to break through." Cheng Yanjin retorted, but he also knew that this kind of chance was also very small.

Li Shimin was also surprised when he heard this, although this method of attacking the city gate had miraculous results, it was still far from the effect of destroying the city and destroying the pass that Merton said.

"What the generals said is very true, attacking the city gate is indeed a matter of heaven's will, but the last great gift prepared by the boy will definitely not disappoint you."

Merton's afterglow flashed, and when he saw the signal sent by Xue Rengui to complete the preparation, he smiled mysteriously and suddenly unfurled the red flag in front of him.

The generals were suddenly shocked, staring intently at the direction of the city wall, the shock that Merton gave them before was too great, and everyone couldn't help but look forward to it,

However, I don't know if it's because everyone is too concerned or for other reasons, I always feel that there is still no movement after a long time, and I can't help but look at Merton with puzzled eyes.

"Mohou, this is the great gift you said." Hou Junji looked at Merton with a sneering expression.

Many generals also looked at Merton with dissatisfied, none of them were nobles with prominent backgrounds and high powers, and Merton's move felt like he had played tricks on them.

Merton suddenly smiled awkwardly, the defects of this most primitive black powder are also obvious, and the discipline that goes wrong is not nothing, and he smiled awkwardly at the moment, and was about to explain, when suddenly a shock came from the ground, accompanied by a huge roar.

"Earth Dragon Turnover!"

The generals were horrified in their hearts, and before they could react, the scene in front of them suddenly made them stay there, only to see that the city wall they had just stepped on suddenly collapsed more than ten battles with a roar.

After a long time, the smoke cleared, and everyone still stayed there, looking ahead in horror, Hou Junji's sarcastic smile suddenly froze on his face.

"Destroy the city!" Everyone's hearts instantly rose to their throats, and even Merton trembled, although he had expected such a scene for a long time, but it was still shocking.

The generals set up their hairs one by one, as vigilant as if a fierce beast encountered a natural enemy.

Such a weapon comparable to the power of the gods can be said to be the biggest nemesis of traditional generals, and the force and military wisdom they rely on to be feudals cannot help but be overshadowed in the face of this gunpowder weapon.

Chinese people love to build the city wall, the city wall is the strongest protection of a country, from the primitive society people learn to use stones to block the cave to protect themselves, the pace of people to build the city wall has not stopped, the village has a village, where the county must have a city wall, the bigger the city, the higher and longer the city wall, so that the world-famous Great Wall of thousands of miles,.

Having walls means security, and no matter what the time of day, it would be too much to pay to conquer a city that has the protection of walls.

With such a high city wall, all the generals thought that they could take it, but they couldn't fill it without three or five thousand lives, but in the hands of the Mo family, with just a roar, the city was broken.

However, it is not only the city wall of more than ten zhang that is broken, but also the city in the hearts of the generals, and the strongest protection they have always believed in has finally appeared flawed, which means that they have been pursuing the military book and the art of war before.

"The old man's military book doesn't need to be repaired." Li Jing lamented in his heart that he didn't need to repair it not because his military book was already perfect, but because he was going to tear down and rewrite it.

Today's firearms supervisor's big performance can be said to be a subversive impact for soldiers, although the previous three stages of attack are wonderful, but it is only an improvement of the bow and crossbow, and it is also within the scope of everyone's understanding.

But the advent of gunpowder weapons was revolutionary for soldiers, first of all, the value of personal bravery would be greatly reduced, and the factors that would determine the victory of a war would be transferred from force to weapons.

After all, a powerful gunpowder bullet is no different from igniting the power in the hands of a well-cultivated soldier in the hands of an ordinary person, and in the face of the attack of the gunpowder bullet, the chances of survival for the two are almost equal.

Second, even the city wall can't stop the attack of gunpowder, and Datang is the country that has built the most city walls, fortunately, gunpowder is in the hands of Datang, otherwise Datang's situation may be very bad.

Li Shimin couldn't help but glad to glance at Merton, a gate of the Daomen, the imperial court wiped out the Wai Dan faction, and the claim that the pill was poisonous made the folk Wai Dan faction empty, and put an end to the way the people obtained gunpowder.

Merton personally played the game and set up a firearms superintendent under his direct jurisdiction, which ensured the secrecy of gunpowder to the greatest extent, which can be said to be extremely prescient.

"The cost of this thing ......"

Before Merton could finish speaking, he heard Li Shimin wave his hand and stop Merton from continuing.

This kind of weapon, which is comparable to the power of the gods, will not hesitate to spend no matter how big the price is.