Li Zhi felt sick and dizzy after reading a few notes, leaned his head back, leaned back on the crimson and smooth backrest of Yizi, closed his eyes, and frowned.

Zhang Chao took a look, the heart of the sage must have been overworked because of the wind disease again, and he was busy serving the recuperation decoction prescribed by the imperial doctor who kept the temperature.

Looking at the light yellow decoction in the soup bowl, Li Yu frowned, although it was made of ephedra and cinnamon, and the joint research was the end, two liters of wine were added, and the syrup made by boiling it over slow fire was not too bitter with hot wine. But if you drink it three times a day, you can still drink it all year round, and even fine wine can be drunk into a bitter medicine that is difficult to swallow.

Although the decoction is difficult to swallow, it is better than the headache and dizziness under Fan Fengji, Li Zhi picked up the spoon and drank it spoonful by spoon.

Sage Fan Feng has been ill for more than ten years, often taking medicine but can only be temporarily suppressed, as soon as he works hard, he will get sick, Zhang Chao, who has served for more than 40 years, saw the pain in his eyes and heart, and opened his mouth to comfort: "Sage, the imperial doctor said that the wind disease needs to be recuperated slowly and quietly, and avoid physical and mental work. ”

Li Zhi put down the spoon and leaned on Long Yi's backrest to close his eyes and recuperate, noncommittal to Zhang Chao's proposal. Holding the handrail carved into a dragon's head, I thought that this Yizi was still five years ago after Si Yan went out of the palace to open the house, he recruited a carpenter to make furniture in the spring of the wood, and this dragon Yi was a gift presented by Si Yang in the New Year.

"Is there any news of Si Chen's campaign in Silla recently?"

"Back to the saint, just yesterday came the good news, His Royal Highness King Yan has achieved a great victory in Guwon City, has conquered half of the land of Silla, and has now entered Shangzhou." Zhang Chao hurriedly replied.

……

"Kill ......"

Under the city of Shangzhou, tens of thousands of soldiers of the Dongyi Army and Pingxin formed by the Silla surrender army howled at the top of their throats, holding shields against the ladders and pushing the crashing cars, braving the arrows and stones fired by the defenders of the city and rushing to the bottom of the city.

One after another, flaming fire bombs arced through the sky, smashed into the city walls, or smashed into the city, followed by a terrible howl and cry.

A series of ladders climbed up the city wall, and the troops climbed up in an endless stream, and then they were continuously smashed down from the ladder by the rolling wood and stones thrown by the defenders of the city, like dumplings in the pot, falling into the boiling soldiers under the city and losing their lives.

Before they could rest, about 20 soldiers pulled back the pine stakes that were hung in the car with enough adults to hug them, and after pulling them up, they violently let go of the rope, and the wooden stakes cut into a conical shape slammed into the wooden city gate, and the city gate trembled, and the dust in the city gate hole fell down. The soldiers slammed hard for an hour, and the gates stood still, except for the dust that had fallen.

Li Shangdan put down the binoculars and said hatefully: "Summons Park Zhengwen, Ah Yu Datu, Sha Lu, and Nai Malu, and send all the troops under their command to the general. ”

"Whoa!"

Since Li Shangdan invited the vanguard, he led the army across the White Mountains, beheaded 10,000 people in eight battles and eight victories along the way, and successively broke through the three counties of Guning, Huaning, and three years, so that Jin Yuxin did not dare to fight with it, and shrank his troops to hold on to Shangzhou City.

On the 12th of Shangzhou City, facing the Shangzhou City defended by Jin Yuxin's 30,000 troops, Li Shangdan waved his army to attack for six days without resisting, and the army of King Yan sat in the rear of Shahuo Town to watch. Zhang Shike always wanted to replace himself as a pioneer, and this fool was waiting to see his jokes, and Li Shangdan couldn't help but feel a little anxious.

Liu Yongzhen shook his head and said: "Brother Li, Shangzhou City is the last military town in the northern defense of Silla Jincheng, the city is tall and strong, with the trebuchet carried by our army, it is difficult to break through in a short period of time only by relying on cloud ladders and ramming cars!" It would be easier to send someone to ask His Highness for a heavy trebuchet to be brought in, and it would be much easier to smash a section of the city wall and break the city. ”

"For now, that's all it can be."

Unable to break through Shangzhou with the troops and horses under his command, Li Shangdan was unwilling, so he had to send someone to fetch the music that passed through the Andong Metropolitan Protectorate, and after writing down the content of the performance, he asked him to go to the camp of Shahuo Town quickly. (The song is a document for the subordinates to make statements to the emperor, but the carrier used is Li Yu's imitation of the Qing Dynasty)

Li Yu, who led the army through the White Mountains and set up a large camp in Shahuo Town, northwest of Shangzhou, sent troops to capture the five counties under the jurisdiction of Shangzhou, including Langquan, Guchang and Chongshan, during the ten days when Li Shangdan attacked Shangzhou. At present, except for the two counties of Yongtong and Guancheng in the southwest, the entire Shangzhou City is actually in a semi-encirclement cut off by foreign aid.

As long as the nail of Shangzhou is pulled out, Li Yu can go down the Huangshan River that flows north-south next to Shahuo Town, and then go east along its tributary, the Qinhu River, to reach Jincheng.

The Hwangsan River is the second largest river in Korea in later generations, and it is the foundation of the wealth and population of the current Silla state.

Receiving Li Shangdan's request to allocate heavy trebuchets to break through the city defense of Shangzhou, Li Yu smiled, there were 30,000 defenders in the city, relying on the outrageous speed of heavy trebuchets to destroy a section of the city wall, and the people had already dispatched troops to build another wall to defend it.

It seems that you still have to use gunpowder to blow up the city to work, but the output of gunpowder is not high, and a hundred explosives packs were consumed last time the country was broken, and another hundred were consumed in several battles in Shangzhou, and they were not replenished.

Forget it, it should be no problem to allocate all the remaining 300 explosives packages to Li Shangdan, and then let Xin'er transport all the gunpowder produced by the gunpowder workshop to take Jincheng.

Although Li Shangdan did not receive the support of His Highness's heavy trebuchet, he was quite happy to get two hundred explosive packs.

Disappointingly, during the siege again, the soldiers desperately set fire a hundred explosives packs in the city gate hole, but after the explosion, they failed to blow the city gate open as they did in the previous siege of other cities.

After the ground shook and the mountains shook, to the surprise of the Tang army, it was found from the cracks in the broken city gate that the city gate had long been blocked by the defenders with earth and stones, and if you looked at it from the inside of the city, the entire city gate hole was blocked by earth and stones, and it was impossible to break it only by relying on bundles of explosives to blow it up from the outside.

Li Shangdan gritted his teeth angrily, it was useless after a lot of effort?

As everyone knows, Jin Yuxin learned that the Tang army had a sharp weapon in his hand to open the mountain and crack the stone, and relied on it to blow up the gate of Guoyuan City, and after crossing the White Mountain Range, he used this thing to break the three passes and five cities, which was as short as half a day and as fast as a day.

Jin Yuxin pondered for a while, in order to prevent the city gate from being blown open, the only way to completely block the city gate hole with earth and stone was to prevent it from being blown open.

After Li Yu learned the news, he couldn't help but smile bitterly, it seems that the black powder explosives package is still used to blow up people, and it is too easy for people to break the trick by blowing up the city gate. The only way to do this is to resort to the trick of the Taiping army carrying the coffin and blowing up the city wall more than a thousand years later.

Fortunately, there are still 100 explosives bags left, there are 2,000 catties of black powder, find a solid wooden coffin to press the black powder inside, and blow up a pit under the city wall of Shangzhou should be able to blow down a section of the city wall.

In addition to the two capitals of the Tang Dynasty, the rest of the cities are still built of rammed earth, and it is not difficult to have a country like Silla. Although Shangzhou is an important military town, the city wall is only an earth and stone structure, and the ability to resist bombing is naturally not as good as the city wall seven or eight hundred years later.