Naudai seems to be suffering from a phobia of tunnels, and as soon as he sees a vertical tunnel, he feels nauseous and dizzy for no reason.

The Lu Xiangsheng outside is also a world-famous general, and he is such a scoundrel in the war!

There is no skill to speak of, that is, to consolidate the camp first and establish yourself in an invincible position. Then let the people dig the trench, one moment into a Z-shape, one moment into a C-shape, and another into an O-shape. The soldiers hid in the tunnels and slowly approached the city walls, while protecting the diggers.

Digging to a close place, after crossing the city defense artillery firing boundary, the tunnel was changed to digging a tunnel.

There were tunnels everywhere outside the city, and the defenders didn't know where the tunnels were digging. Several tunnels were dug all the way to the bottom of the city, and a large amount of explosives were transported...... Rumble!

This method of warfare must meet two conditions: first, the besieging side has the advantage of troops, otherwise the defending side will desperately kill into the tunnel; Second, it can only be used to capture small and medium-sized cities, and large cities such as Tianjin, Jeju, and Shangqiu can only be blown up with massive explosives.

It just so happens that the Phoenix City and the fortress in front of you are both small cities that can be blown up......

"Haven't you heard yet?" Naudai asked anxiously.

Inside the city, under the wall.

Every five or six steps, there is a soldier of the Eight Banners, lying on the ground and listening to the sound with a bamboo tube.

A soldier replied with a bitter face: "Beizi, the enemy artillery interference, I really can't hear clearly." Moreover, the enemy's tunnels were not dug into the city, so we had to go outside the city to make it easier to hear clearly. ”

"Then go out of town!" Naudai scolded.

The Eight Banners were hung down from the city wall, and they did not dare to go through the city gate, because there was no urn city to protect them.

"Bang bang bang!"

In the circular tunnel outside the city, the Datong army immediately probed, and the melee soldiers raised their shields to help block the arrows.

There were two unlucky Eight Banners Army, who were hit by bullets in mid-air. At the same time, the bows and arrows and firearms in the city also took the opportunity to shoot at the tunnel.

These Eight Banners soldiers were really not afraid of death, so they fell to the ground with bullets, and then lay down and listened carefully.

"Someone is digging a hole down here, and it's almost up to the base of the wall!" One of the Eight Banners shouted.

Naodai immediately ordered: "Throw stones, smash hard, smash the tunnel!" ”

It is impossible to irrigate, it takes time to dig holes, it takes time to move water, and it is impossible for the Datong army to let the defenders do it.

At Naude's orders, large stones soon fell from the city. It's a pity that the stones are still not heavy enough, there are logs in the tunnel, and they are very deep from the ground, and some falling rocks can't collapse at all.

Naudai was so anxious that his forehead was sweating, and if he didn't destroy the tunnel, it would take another day or two at most for this section of the city wall to be blown up.

"Fight out of the city!" Naudai can only take risks.

The city gate slowly opened, and the Eight Banners soldiers pushed the cart out. This is a makeshift car, because the mountains are not used at all, so Phoenix City does not have a car stockpile.

"General, the enemy has opened the city gates, do you want to take the opportunity to attack?"

"No, it's just shelling."

Naodai has built a large acute angle enemy platform for Phoenix, and there is no dead angle of firepower, so if you rush over like this, it will be terrible for the enemy to close the city gate.

"Boom, boom!"

There were already several artillery pieces, all the time aimed at Nagato, and at this moment they immediately fired at the car.

Four shots were crooked, and one shot hit.

The makeshift car was obviously of poor quality, and it was smashed with just one shot.

When Naudai learned of the situation, he said angrily: "Withdraw and close the city gates!" ”

The tunnel of the Datong army was too close to the city wall, and the firecrackers could shoot at any time. If there is no protection of the chariot and forcibly goes out to destroy the tunnel, those Eight Banners soldiers will definitely die.

Just when Naudai was anxious, an officer offered advice: "Beizi, we can estimate the location, dig a tunnel from the city, and figure it out with the enemy's tunnel." When the time comes, the Eight Banners warriors will be able to follow the tunnel and fight with the southern barbarians on the opposite side! ”

"Great idea!" Naudai was overjoyed.

Stonemasons and carpenters were brought in from all over the city, and it would be better if there were miners. The Korean serfs who had been evacuated to the city were also forced to help dig tunnels.

Not only digging tunnels at relevant locations, Naudai dug more than a dozen tunnels at the same time, anyway, digging all the way outside the city.

When night fell, the two sides were still working in the tunnel, and one batch was replaced when they were tired of digging.

The Datong Army habitually raised the hot air balloon, raising it every two hours, leaving it in the air for half an hour at a time.

Yu Dongbao has been a soldier for two years, and he is not afraid of death when he fights, but he is afraid of riding in a hot air balloon.

chose him as a lookout, because he had strong mental arithmetic skills and was familiar with various flag orders.

Holding the clairvoyant mirror, Yu Dongbao looked around, and suddenly his eyes widened.

I saw that on the northern wall of Phoenix, someone waved a torch and shook it three times before putting it down.

After a while, the torch was waved again, and it was also shaken three times and put down.

This is the signal that Zhang Fengyan made an appointment with Lu Xiangsheng, after the hot air balloon was lifted off at night, he raised the fire three times as a signal, and attacked the city on the fourth watch day that night.

Lu Xiangsheng quickly learned the news and said: "It seems that Zhang Fengyan was ordered to garrison the northern city wall. Let's make a feint attack on the eastern city, make a big noise, and after attracting the enemy's troops, break through from the northern city wall! ”

Sinicization of Jurchen, also Jurchen, can not be fully trusted.

Therefore, Zhang Fengyan still had to do something in exchange for Lu Xiangsheng's trust.

That's ...... Set!

Only when a raging fire broke out in the city did Lu Xiangsheng dare to believe that it was really an internal response. The fake traitor didn't dare to play like this, because once the fire started, the whole city would inevitably be in chaos, and the Datong army would be able to attack it.

Time has passed, and it has come to the fourth watch in a blink of an eye.

After the tunnel is close to the foundation of the city wall, the horizontal excavation begins. The wider the dig, the better, the more gunpowder it can hold, and it will be detonated by noon tomorrow at the latest.

"Dangdang!"

Below the pit wall, there was the sound of hammers smashing iron drills.

The Datong people were stunned, and quickly reacted: "The Tartars have dug tunnels from the city, and they are digging deeper than us!" ”

"Boom!"

A piece of mud and stone caved in, revealing a hole the size of a head.

Both sides carried lanterns, and by the light, through the hole, they stared at each other with wide eyes.

"Kill!"

A Datong man pricked the hole with an iron drill and stabbed the opponent's eye socket fiercely.

In addition, it can't be fought, because the tunnel heights of the two sides are different, and you have to continue to work hard if you want to completely open up.

"Beizi, dig through, dig through!"

Naudai had been guarding the vicinity, and when he heard the news, he hurriedly sent soldiers into the tunnel.

Under the corners of the city, it became chaotic and noisy.

Zhang Fengyan heard the voice in the northeast corner and said to the soldiers beside him: "There is a situation over there, let's set fire in advance!" ”

These Sinicized Jurchens are all locals and are very familiar with the situation in the city.

The fuel for the ignition was readily available, as firewood was prepared for the defenders.

Dozens of people had already dispersed into the streets, and Zhang Fengyan brandished torches on the city walls, and his companions began to set fires inside the city.

In the blink of an eye, more than a dozen houses were on fire, crackling and burning.

At this moment, the people on both sides have withdrawn from the tunnel. The soldiers stabbed each other with their waist knives through the hole, but did not use spears because the tunnel was too low to be opened.

The hole is too small and of different depths for anyone to pass through.

I stabbed him with a knife for a long time, but I didn't stab anyone to death. The most serious injuries were just severed fingers, and no one would die for another day of beating.

Naudai was anxiously waiting for news from the tunnels when he suddenly heard a commotion from inside the city. He turned his head to look, only to see the flames behind him, and suddenly panicked: "Eight Banners warriors, strictly guard the city wall, the southern barbarians have an internal response in the city!" Don't go to fight the fire, don't go to fight the fire, the enemy army is going to take the opportunity to attack the city! ”

There are already some Eight Banners soldiers who have taken the initiative to go to the city to put out the fire.

Naudai sent more than a dozen personal soldiers to ride horses along the streets to deliver messages, and all the soldiers who rushed to fight the fire were reprimanded back to defend the city.

The Eight Banners could only return to the city one after another, but from time to time some people turned their heads to look into the city. They were sent to garrison Phoenix, and they came with the whole family, who usually farmed outside the city, but now they all withdrew into the city.

There is not only a family in the city, but also the property of the whole family, what should I do if it is burned down by a fire?

One of the Eight Banners begged: "General, let's put out the fire first, we can't let the city burn down!" ”

"The soldiers are all at the head of the city, and you don't need to fight the fire!" Naudai said angrily.

The civilians, artisans, merchants, and serfs in the city, as long as they had hands and feet, were all organized by Naudai's personal soldiers to extinguish the fire.

But in the middle of the night, when the lights are blind and the people are panicked by the fire, where can they be organized? They are all spontaneously fighting fires, which is extremely inefficient, and many people only know how to panic and shout.

Seeing that the city was burning vigorously enough, Lu Xiangsheng said, "Open the cannon!" ”

"Boom, boom!"

As the cannon sounded, the Datong army carried the ladder, slowly came out of the tunnel, and pushed towards the city wall step by step.

"Shoot back!" Naudai shouted.

The shouts of killing in the east of the city shook the sky, and Naudai really gathered troops to come.

But he was not worried about the north and west of the city, so he personally went to inspect and encouraged the soldiers to defend all the way.

When passing by Zhang Fengyan's side, Zhang Fengyan suddenly pointed to the north: "Beizi, there are also enemy troops attacking the city here!" ”

Nao Dai hurriedly picked up the clairvoyant mirror, stood on the edge of the female wall, and looked out of the dark city, and the soldiers around him also subconsciously watched.

Zhang Fengyan pretended to check the enemy's situation, limped, and took the opportunity to walk to Naodai's side. Lame is the best cover, Nau Dai's personal soldiers did not stop him, and even because he checked the enemy's situation, he did not notice Nau Dai coming over.

"Sure enough, it's a sound of attacking the west, there are a lot of enemy troops here!"

Naudai put away the clairvoyant mirror and was about to give the order to call the reserves over to strengthen the defense. Suddenly, he felt his vest being pushed, leaned forward with his whole body, and subconsciously grabbed the female wall.

Zhang Fengyan pushed with all his might, where can he catch it?

Naudai's upper body was all poked out of the arrow and chopped. After barely steady, Zhang Fengyan grabbed his belt again, lifted it hard and then pushed forward again.

"Ahh

The chief general of Phoenix City was actually pushed down from the city. And he didn't fall to his death, he smashed to the ground and snorted, and both arms were broken, because he used his hands to cushion the ground when he fell.

At the same time as Zhang Fengyan made his move, the nearby Han Jurchen also quietly killed, stabbing Nao Dai's personal soldiers from behind.