In the wet April, the temperature rose and the two sides of Zhengjiang River suddenly felt stuffy.

Under such boring temperature conditions, the two defense lines on the south bank that determine the national fortune of Annan are also in a suffocating confrontation.

The first line of defense was completely opened on April 6th and was occupied by the North Vietnamese anti-rebel army.

Of course, since the central core fortress group has been broken through, the South Vietnamese people did not fight desperately against the auxiliary defensive facilities on both sides. After all, the opponent can now attack back and forth. Rather than occupying, the South Vietnamese people have plans to give up.

Now, the cold confrontation began again, and the South Vietnamese on the defensive side undoubtedly saw the dawn of victory in the war: the rainy season in April may begin at any time next, and the North Vietnamese army will be in a dilemma.

Time is on the side of the South Vietnamese.

The South Vietnamese had 100% confidence to use the second line of defense to block the Yankees until the rainy season came.

Even if we take a step back, the rainy season this year will come a little later, and the people of South Vietnamese don’t care: the third line of defense has been built under the city of Hue.

To sum up, in the early morning of April 8, the defenders in the South Vietnamese defense line actually looked at the busy Yankees on the opposite side with a superior mood of looking at the losers.

———————————————————————————

The Yankees' actions were the same as those a few days ago, with nothing new: the army came out of the camp and lined up to seize the position, and then the civilians came out in front of the formation to dig out several shallow mounds.

Before, I dug one, but later, in order to save time, the Yankees dug one at a distance to facilitate the transfer of the mortar.

The mound can block the shells shot from the opposite line, or block the guards' peeping view - the latter one is now useless. After so many days, the north and south armies have personally known that a cannon with a gun facing the sky will appear after the mound.

It seems as usual today.

But unlike in the past, today, the one gathered behind the mound is a group of people who have never seen before.

These people wore double-breasted shirts and strange hats. Although their clothes are of the same shape, they have different colors. Judging from the figure and movements of the general young Kong Wu, they are obviously soldiers.

What the South Vietnamese defenders didn't know was that a conversation about them was going on at the back of the mound that was not clearly visible across the street.

"I said Mao Daoxue. This '80 type mortar cannon' is an army equipment. What's the fun of your navy?"

The person who spoke was Yang Er, a combat staff member with a tall and long legs... Yang Willie.

At this moment, Yang Weili was raising his hand with a smile, and while winking at his colleagues, he placed his hand on Captain Mao Wujian, wearing a white naval uniform beside him.

"Pay attention to military appearance and discipline, the army is just loose in discipline, what does it look like!"

Although he was short, Captain Mao Wujian, who always had a straight figure and maintained a military example, frowned and slapped Yang Weili's claws from his shoulders in disgust: "Don't say that this Type 80 was transported by the Navy, the test-firing of the Navy is still the naval artillery team. As a naval captain, why can't I come to observe?"

Yang Weili seemed to have been used to the brother's face, so he put his hand on him without caring, and called out the nickname he had given Mao Wujian privately: "Taoxue, don't be so serious. Why do we also say that we have eaten sand and whipped together on the beach, aren't we? Don't go back to the boat tonight, I'll treat you to the roasted turtle of Annan people."

“On night duty.”

"Ask for leave."

"On-service soldiers are not allowed to take leave without reason!"

...While this group of future imperial minions quarreled, the artillery position in front of them had been built.

The highly anticipated generation of imperial artifacts, the Type 80 gasoline barrel... No, it is the Type 80 mortar cannon, which is known as the name of the name of the "conscience", and is half buried in the earth pit and is ready for launch.

As its name suggests, this oil barrel welded with standard thin steel plates has a diameter of 80cm.

The so-called conscience-free cannon was really famous during the later period of the Liberation War.

This thing has a simple and rough structure. To put it bluntly, it is not a cannon. In fact, it is an explosive package ejector that uses gasoline barrels as gun barrels.

When using the conscience gun, fill the bottom of the fire medicine, and then put the explosive pack tied into a disc-shaped shape in it. After ignition, the explosive pack can be ejected to a distance of 150-200 meters.

During the War of Liberation, although this kind of earth-made explosive package ejector had no accurate head or range, it could cause huge damage to the enemy's fortifications when used in a concentrated manner, and became a well-known attack artifact of the People's Liberation Army.

Today, an upgraded oil barrel ejector was half buried in the front line of the seventeenth century.

Unlike those liberation guns that were not of quality and had different standards in the later period. Today, this gun is an industrial oil barrel made by the travelers using small electric furnaces and welding processes.

The diameter of this barrel reaches 80 cm, and there are wire reinforcement ribs on the outside, which can withstand a certain pressure of emitted gas and have excellent mass.

In addition, considering that there will be countless alien cities in the future that need the Oil Bottle King to assist in the attack, this shelling test has been standardized even the supporting explosive packs and launching drugs, just to control the ballistics as much as possible.

After everything was ready, with a sharp whistle, the South Vietnamese defenders suddenly discovered that all the Yankees had returned to the camp?

This action is a bit abnormal. According to the previous script, shouldn't the Northerners be dragging the cannons out and bombing? Why did there be no movement and return to the camp? So the defenders strengthened their guards, and the troops originally planned to withdraw from the fortress were temporarily gone.

What the South Vietnamese don’t know is that a gasoline barrel does not require laborers to mobilize and shout horns to arrange it. Without the guard, the launch preparations have been completed here.

At this moment, except for the members of the gun team, all the staff members who had been happy to observe the close distance ran back to the rear camp to watch the fire across the door... These are military elites who are capable of calculating the equivalent of black gunpowder explosions. They knew that if something happened, there would probably be no living people near the "mortar cannon".

At the same time, on a tall nest car behind the camp gate, Zheng Yan, the King of Qingdu of North Vietnam, was holding a monocular lens to observe the launching position, accompanied by Commander Sheng, who was specially rushing to the scene.

The prince with a serious face said that he was not nervous, which was fake. He had already bet on everything and agreed to some additional requirements of Ming people, which was a debt operation.

If this weird mortar can no longer have an immediate effect today, even if the prince goes bankrupt on the spot, he will fall from the nest cart.

In the Prince's shot, the leader of the gun team responsible for firing checked the cannon again, and then bent down to push a thin piece of launching medicine into the bottom of the cannon.

Since the "cannon shell" is just a pack of explosives, and the "cannon barrel" is very thin, there is no need for too many launching drugs. This launching drug is wrapped in silk and the amount is very small.

Next, the gunner stuffed a linen "round cake" with a diameter of 80cm into the gun barrel.

This round cake is a standard explosive pack, stuffed with black gunpowder and weighs 18 kilograms.

Next, the critical moment came: the gunner used a military lighter to lit two leads calmly.

The first thing to ignite is a long lead on the surface of the explosive pack in the barrel. The length of this lead is cut and the target distance has been calculated in advance. It will explode after the explosive pack falls into the enemy fortification.

The second lead is the lead of the launching medicine bag drawn out from a small hole at the end of the cannon. This lead is much shorter. After the cannon ignites the lead, it quickly ran back for about ten steps and jumped into the pre-digged anti-cannon trenches.

The cannon jumped into the trench, and the battlefield was silent. The two armies of the north and the south held their breath and calmed down, and everyone spent seven or eight seconds together.

Suddenly, with a dull "bang", a thick stream of white smoke emerged from the big oil barrel. At the same time, under the gaze of tens of thousands of people on both sides, a black object rolled into the air, and flew "swayingly" towards the second line of defense of the South Vietnamese.

It is different from the iron ball that flashed past before. This "tuple" of black things seem to be very slow in the air, and everyone can clearly see its running trajectory.

A few seconds later, the rolling black object had already flown over the defense line. The defenders with good eyesight could even see clearly that it was a sackcloth... a candle?

While the candle was rolling, it kept emitting blue smoke. Finally, after making a "puff" sound, it fell to the top of a stone fort in the middle of the defense line without bias.

The frightened defenders first dodged and evaded. After finding that the smoky bumbled with blue smoke seemed to be no big deal, everyone was curious and walked forward a few steps to look carefully.

The next moment, the lead burned to the end and the medicine bag exploded.

The moment the eighteen kilograms of black gunpowder exploded, a small mushroom mixed with white smoke and black mist rose up. The white smoke was the smoke color of the black gunpowder, and the black mist was the dust stone rubble that was blown away at the top of the fortress.

As the clouds and mist rose, the defenders at the top of the stone fort also turned into pieces. The fortress built by bamboo, stone, and civil engineering completely lost its defensive effect at this moment, and was blown into pieces by huge energy, and turned into a pile of rubble.

The stone fort was like this, and the surrounding defenders could not escape the disaster. Many soldiers near the positions on both sides were shocked to death, and those who survived were bleeding in their ears and rolling in the trenches screaming.

In a short moment, it seemed to be eternity. At this time, a huge and dull roar slowly came from the opposite side to the Northern Army's ears.

Prince Zheng, who witnessed the actual explosion effect with a telescope throughout the whole process, held the railing of the nest car with his trembling hands at this moment. His face was pale, his arms were trembling as if he was exhausted. He realized that the Mingren had indeed held back in Shenglong Mansion before. Otherwise, Shenglong Mansion would have been turned into powder by this magic weapon that ruined the world.

Turning his head and looking at Sheng Nan who was still moving, the prince couldn't help but exclaim in secret. However, the prince probably didn't expect that this level of explosion was too common in the eyes of Sheng Nan, a later generation, and he could see it in the anti-Japanese drama every night.

"General Sheng, this thing is worthy of being the treasure of Lord Cao's housekeeping! According to Xiao Wang's view, those who obtain this magical artifact will be able to go all over the world!"

General Sheng is a good Ming soldier who is loyal to the emperor and serves the country. He naturally wants to refute his sincere words to the prince. So he waved his hand and changed the subject proudly: "Prince, as soon as this cannon is released on earth, it takes less than three hours. Today, we will be able to reach the city of Shunhua!"

"Hahaha, it's all up to the general's power!"

Seeing that his dream of founding a country came true, Prince Zheng was proud at this moment. While laughing happily, his eyes looking at Hue City were full of viciousness.
Chapter completed!