"Quick, set up the rocket!"

"The Ming people who are going to blow up are crying dad and calling mother!" At the head of Thang Long City, Annan soldiers were in full swing, and a group of two people came out carrying a large bundle of things.

"Go fast! Flying guns ready! "General Nguyen Fei Minh, who is in charge of rockets, keeps urging and directing one rocket after another.

Each of them was mixed with hope for war. The flying gun rocket is actually a large rocket with a paper tube, shaped like a gun, and belongs to the multi-gunpowder cartridge three-fly rocket in terms of structure.

It uses the gas recoil force generated by the combustion of gunpowder to propel a rocket into the air above the enemy and explode. The rocket is made of bamboo strips, and a two-inch long paper tube containing a propellant is placed in the middle, which is filled with explosives.

There is a medicine thread through it, and it is connected with explosives, and the appearance is made of more than a dozen layers of paper paste, painted with various colors.

When attacking the enemy, it ignites with the wind, and the propellant in the paper tube is sprayed out, generating a recoil force, pushing the rocket into the enemy line and exploding.

After the explosion, the smoke is obscure, and the edges and corners pierce people. This thing is a small piece of bombing, and the range is up to hundreds of paces, so Annam

"Artillery Commander-in-Chief" Nguyen Fei Minh is fascinated by self-confidence.

"Bang!" The stone wall behind Ruan Feiming suddenly exploded. A five-pound big iron ball of the Ming army, with a momentum that swept everything, broke through the wall.

The walled walls of Thang Long City are stone walls, but they are only made of stones, and the hardness of the city walls in various parts of the Ming Dynasty cannot be compared in any way.

In the loud noise, the wall shattered instantly. In the dust, there was a large mist of blood, and an Annan soldier was beaten to pieces of meat on the spot, and some fragmented limbs flew around with the dirt.

Several others fell to the ground, all of them grizzled and covered in dirt and flesh. Rumble! Another large iron ball broke through a wall, and the stones that shot out swept across the area.

Several nearby Annan soldiers were caught off guard and were hit by stones, letting out desperate screams. An Annan soldier broke his lower body and crawled on the ground in pain.

Internal organs and blood continued to flow from under his body, and there was a heart-rending wail. Even Ruan Feiming, who was wearing three layers of armor, was also hit by the flying stones, and spit out a mouthful of old blood.

Then, more high-pitched, shrill whistling sounds were heard.

"The Ming army has shelled Shenglong City!" Ruan Feiming screamed, leaned against the wall, and ran agilely. He was wearing several layers of heavy armor, but he was still running fast.

Behind him, the minions also ran behind in fear.

"What to run! Counterattack! Hu Yuancheng shouted. Ruan Feiming, who ran to the corner to avoid the artillery fire, remembered that he was a general and hurriedly stood up.

Looking at the Ming army firing in the distance, Ruan Feiming took a deep breath and roared: "Rocket launch!" Immediately, from left to right, the brave Annan gunners nervously stepped forward and lit the fuse.

"Hiss!" In the expectant gaze of everyone, the lead sparked and quickly burned out.

"Boom, boom, boom!" In the shrill whistling, the guns and rockets spewed out large streams of smoke and fire.

Rockets dragged a long trajectory of fireworks and flew into the sky at great speed. Like thunder in the sky.

"That's the monkey's killer feature?" In the Ming army's large array, everyone looked at the rockets flying in the air.

It's unusual, it's so loud that everyone is afraid of it. There were also rockets in the Ming army, but because of the trouble and the immaturity of the technology, the Ordnance Bureau rarely made rockets.

Annan: This rocket....... Zhu Yunxi was still very interested, and looked at it quietly.

There were a few booms, and several huge fires appeared in the air. Several rockets of the Annan Army exploded in advance in the air, filling the air with several clouds of black smoke.

"Ahh A scream came, and several people were immediately blown to the ground. The bomb was hit, but it was your own people.

After the flying gun rocket is launched, the quasi-head is scattered, and it flies out only to circle back and explode at the head of the city! More flew directly out of the battlefield, and very few people were blown up.

In the position of the Ming army, from small soldiers to generals, everyone invariably breathed a sigh of relief. A cheer erupted.

"Aha! Are the monkeys self-harming? Lan Yu patted her thigh and laughed wildly, almost dying. What followed was a merciless taunt with a fragrant mouth.

Zhu Yunxi smiled slightly, Annan's rocket is really good. If the tail of the rocket is slightly modified by the aerodynamic theory, this thing will lead the world by 400 years and become a real mass killer!

It's a pity that Hu Yuancheng doesn't understand physics...... When the smoke slowly cleared, Hu Yuancheng and the others in Thang Long City were speechless in surprise when they looked at their bombing results.

Hu Yuancheng said angrily to Ruan Feiming: "What's the matter with you? We fired, and our own brothers were bombed? Reading the book, the corners of Ruan Feiming's mouth twitched: "King Wei...... I don't know, but this is a firearm you made......"

"Shut up!" Hu Yuancheng waved his hand. Hearing the collective ridicule of the Ming army, he inhaled the cold air, and the expression on his face changed.

What a shame! Hu Yuancheng really didn't know what words to use to express his feelings. After a short silence at the head of the city, Hu Yuancheng glanced at Ruan Feiming angrily and shouted, "Keep put!" Ruan Feiming was helpless, so he had to say, "Yes." "This time, the Annam artillerymen learned wisely and knew how to see the direction of the wind, so as not to fly back and hurt their own people.

Dozens of flying guns and rockets were steadily aimed on the branches, and under the orders of their respective team officers, they fired rockets outside the city one after another.

The sound of the big rocket launch was like thunder, and a cloud of smoke was raised, and with the trajectory of fireworks, it shot sharply towards the Ming army outside the city.

The rocket flew high and far, like a rain and a gust of wind. For a moment, the sky was full of smoke trails, and no one knew where these things would end up.

Whether it is the Ming army or the Annan people, they are all looking up nervously. The rockets exploded one after another in mid-air, and the dense fragments of explosions, like a rainstorm of small iron bullets scattered around the perimeter.

Coupled with the splash of flames, it instantly causes damage on the battlefield, and chaos is chaotic. Smoke and fire, the sound is like a huge thunder, people and horses encounter it, and the blow is like smashing.

Fortunately, the Annan army released enough rockets, but the advantage was that the quantity was dense, and many flew into the Ming army.

"King Wei, please don't let it go!"

"If you put it down, you'll be gone!" Under the city, there were Annan generals holding their heads and shouting. Annan brand flying gun rockets, the bombing of their own people are afraid, and they keep wailing.

Compared to the Ming army, they felt that their rockets were more threatening! The corners of Hu Yuancheng's mouth twitched slightly, and his head was extremely big.

If you don't let it go, the Ming army will inevitably take Shenglong. Let it go, mess up the battlefield, maybe there is a glimmer of chance. Let's put it on!

Until the end of the release, it is not in vain to develop a ...... The rocket continues to take off. People everywhere in the bombing turned on their backs, at a loss.

As if sensing the threat of rockets, Zhu Yunxi thought about it and said categorically: "Shenji Battalion, let the enemy try our artillery!" In the muffled sound of the horn, the Ming artillery position emitted another deafening cannon sound.

Thick smoke filled with thick smoke, and large and heavy iron bullets roared out and rushed towards Thang Long City. Rumble! Rumble! The walls of the wall were constantly hit, and the rumbling and collapsing sound continued.

These stone walls are quite rudimentary, and if you hit them, they will not collapse. The iron ball that shot brought a rain of stones and swept through the surrounding Annan soldiers.

The defensive line had been shattered, and many earthen and stone walls had collapsed. There were even several rocket shelves that were hit, and the rockets were scattered all over the ground.

The Annan soldiers behind the wall were either frightened and running around, or their faces were as gray as ashes, and their eyes were glazed.

Many people sat in a daze, they had never seen such powerful artillery before!

Screams, screams, the defenders of the city were in chaos, and they didn't know what to do. Some shells crossed over the walls and fired into the city, knocking down some stone and wooden houses.

Some unlucky eggs were rolled in the iron ball, broke their hands and feet, and desperately screamed for help to the people around them. In the artillery array of the Shenji Battalion, the gunners of each gun operated frantically.

Immediately after the cannon is fired, the chamber is cleaned with a wet woolen stick. I listened to the sound of water vapor constantly, and the air came out.

After reading the book and brushing the barrel, the loader filled the new propellant bag and sent the iron bullet to compact. The action is raw and cooked twice, and the operation is as if you are shooting a cannon.

The sound of the cannon was deafening, and the cannonballs whistled and thundered, and the large iron balls that were fired continued to smash into the stone walls of Thang Long City.

Hu Yuancheng and other Annan generals had no confidence, they nested together and hid at the thick city gate.

"Raise the banner, just say we surrender!" Hu Yuancheng gritted his teeth and said. The commander was stunned, thinking that he had misheard.

Glancing at the generals, Hu Yuancheng shouted: "If any of you are unwilling to surrender, withdraw to Qinghua, I will not force you to stay!" "Just yesterday, he got the news from the Western Capital Thanh Hoa.

His father actually passed on the throne to his younger brother Hu Hancang! The old man can't wait to pass on the throne before he dies.

Hu Yuancheng, who had just heard the report yesterday, was stunned on the spot. I worked hard to fight to the death with the Ming army on the front line, and my father actually did such a thing?

What a fart! It's better to vote! With a glimmer of hope, Hu Yuancheng wanted to turn the tide and save enough political capital for himself to fight for power with his younger brother in the future.

However, the Ming army is too strong! Rao did his best, but he couldn't bear the fate of being beaten.

Let's vote! In the face of a powerful dynasty in the north, the hearts of the monarchs and ministers of Annam were complicated. For thousands of years, they had to surrender.

Although he rebelled, he was full of admiration for Han culture culturally. Under the strong pressure of Hu Yuancheng, the troops of Annan gave up resistance, raised the banner of surrender, and opened the city gates.

They watched as the Ming army entered the city and surrounded themselves. Tens of thousands of Annam soldiers in Thang Long City are anxiously waiting for the passage of fate.