The whole army watched the fun.

"No one has made this thing in the past few years."

There are so many trees around Pyongyang, and Jia Ping'an ordered his command to cut down many of them back.

"My mother, how good the wood is, how good it is to make furniture, how good it is to repair the house."

Jia Ping'an sighed.

Pei Xingjian looked carefully and found that Jia Ping'an was actually serious.

"Just just trees, just cut them down."

Jia Ping'an shook his head, "Do you know how many trees the Tang Dynasty will cut down in a year? Countless. Have you replanted it after it is cut?"

Pei Xingjian shook his head.

"Many places around Chang'an have been cut off. It looks very good when you look bare? In a few years, all the people in Guanzhong will be cut off..."

The eyes are all bare.

Just thinking about it makes me feel scared.

Pei Xingyan didn't know Jia Ping'an's desire for green... In the early years of his later generations, many of the hills in his hometown were cut down, and the bare mountains looked like a bald man. Later, the truth that gold and silver mountains were not as good as green waters and green mountains, gradually this concept was deeply rooted.

This obsession cannot be understood by the people of the Tang Dynasty.

However, the court has already practiced the world and asked officials from all over the country to persuade the people to burn more peat and reduce the demand for wood.

I have merits too.

Jia Ping'an felt that there was a halo on the back of his head, but Pei Xingyan thought he was strange.

After Jia Ping'an went to inspect the construction of the trencher, Li Fucheng quietly came over.

"Pei Changshi."

Pei Xingjian turned around, "What's the matter with the deputy chief executive?"

Li Fucheng used his chin to squat and build things, "It would be fine if Wu Yang Gong built a trench machine, what was that?"

The craftsmen are making bamboo tubes.

"When Duke Wuyang set out from Chang'an, he brought many bamboo tubes. Is it going to be used today?" Pei Xingjian was also very curious.

The craftsmen burned the iron chisels red and pierced the partitions of the bamboo tubes one by one, forming a long tube.

Such large tubes are stacked like mountains on the edge.

"Is this going to make bamboo rice?"

Jia Ping'an made a bamboo tube rice halfway through the way, and the food was praised by everyone.

Another place, gunpowder is being packaged.

The bamboo tube is right next to it, and the gunpowder is wrapped into a cylinder. It is tested to be placed in the bamboo tube, and a straightened branch is tied to the end of the gunpowder pack.

This is Master Jia's version of the Monkey Fighting.

"Remember to wrap the lime in."

"Know."

Gunpowder pack, gunpowder cartridge...

Gradually piled up like mountains.

"Shoot the arrow!"

The army is sieging the city... it is to cover the city with crossbow arrows.

But the Koreans have learned their skills. If you only use crossbow arrows, I will reduce the deployment of the city wall, and the remaining people squat behind the city wall.

It's just a warm-up.

The Central Army is building a ladder.

Gao Kan frowned, "What is Mr. Wuyang doing?"

"It's said it's a siege."

Gao Kan smiled, "It's enough to build a catapult. Duke of the British, I'm afraid no one has used this catapult for hundreds of years?"

Li Jie said lightly: "Those people don't know how to build a trench machine. The trench machine they made is not accurate and becomes a joke."

This matter has been discussed in the army.

The next day, Jia Ping'an came.

"Duke of England, my department is ready."

Li Jie said without comment: "Try it."

There was a lot of noise outside.

Countless sergeants were carrying trench machines, and large trucks were transporting bamboo tubes and gunpowder.

"Duke Wuyang." Deng Guan ran back, "The catapult was in place."

Wang Chong is back, "Wuyang Gong, the bamboo tube is in place."

Jia Ping'an nodded, "Prepare to do it."

Deng Guan and Wang Chong went back.

"Prepare to start!"

The gunpowder bag was put in the pocket, and the monkey was in his hand. He just waited for the ignition and then filled it in.

"Infantry preparation."

Jia Ping'an ordered.

The infantry appeared carrying a ladder.

Someone shouted at the top of the city, "The Tang army is going to attack the city!"

“Go up!”

Shan Yude rushed to the top of the city under his command.

The Tang army's infantry had reached the range of the arrows. After just one order, they rushed up and climbed to attack with a cloud ladder.

Shan Yude saw the catapult...

The dense trenchers are arranged outside the city, and there are at least three rows.

this……

"Did the Tang army want to smash Pyongyang City with stones?"

"Go and tell the Great Mo Lizhi that the Tang army used a catapult to attack the city."

Before he finished speaking, Jia Ping'an waved his hand lightly.

"ignition!"

The monkey needs to ignite the fire twice, one is the gunpowder cartridge and the other is to drive the gunpowder. After ignition, it is loaded into the bamboo tube.

"Wuyang Gong made this..." Li Ji brought the generals to watch the fun, and he also found it quite interesting to see this scene.

"Look at it." Li Ji smiled and said, "Young people always like to make new tricks."

Bang bang bang bang bang bang bang bang bang!

The catapult's swinging arm moved violently, and the gunpowder bag flew out.

"It's not small."

Gao Kan said lightly.

But gunpowder packs cannot make the Koreans surrender.

Swallowing...

The bamboo tubes filled the smoke, and then the monkeys flew out.

"What's this?"

Everyone's eyes widened.

Someone said, "I'm afraid it's something... fireworks."

Li Ji smiled and said, "Young man!"

Boom boom boom boom boom boom...

The city wall was instantly shrouded in smoke.

The Korean people were charred all over by the bomb, screaming and screaming at the top of the city...

"This is...this is hell!"

Shan Yude stared at this scene blankly.
To be continued...