It turned out that Yang Zhi saw that the Jin general was very arrogant, and in order to perfectly annihilate the 5,000 troops of the enemy army and hit the morale of the Jin people, he took the initiative to ask Lu Junyi for battle. and together with Lu Junyi and others, he designed this plan to lure the enemy into encirclement and annihilation.

The results of the battle were reported to Wan Yan Gao by the Jin soldiers, who had already watched the battle.

When Wan Yan Gao heard this result, although he was furious, as the number one general of the Jin Kingdom, he was very deep in the city, and he did not lose his mind at the moment. I just sent thousands of soldiers who did not carry weapons to pull back the bodies of the soldiers who died in the battle and bury them......

Compared with the battle with the hundreds of thousands of troops behind, the first battle was just an appetizer. The reason why this battle was later praised by the people and included it in the textbooks of military science as an example to show the enemy's weakness and paralyze the enemy. Then he attacked more with less, and also achieved the total annihilation of the 5,000 cavalry of the Jin State with zero casualties.

Through this small first battle, it also reminded Wan Yan Gao that the defenders of the Daimyo Mansion were different from the defenders in other places, they were not only well equipped, but also their combat power was not weaker than that of the Jin soldiers.

The Daimyo's Mansion was the gateway to the Great Song Dynasty and an important town in the north. The city wall is the same as Kaifeng City, high and thick, and it cannot be broken by a large number of people.

Therefore, when the troops were divided, when Ha Mi Chi decided to act with Sticky Han, before leaving, Wan Yan Gao asked him for advice on the strategy of breaking the Daimyo's mansion.

Ha Mi said that in addition to preparing siege equipment, in addition to attacking the city with equipment, you can also consider digging holes, digging until under the city wall, and then expanding along the city wall, digging to a certain extent, leading the water of the canal to pour in, after a little longer blistering time, the foundation stone of the city wall collapses, the city wall will not be stable, and it will collapse for a long time.

Both of these methods take a long time and may not be successful. So Wan Yan Gao didn't want to use the trick at first. So he first sent a fierce general to challenge, thinking that if he could win, the enemy's morale would be greatly damaged. Then, with the advantage of the Jinren's superb cavalry and archery and military strength, the old method of climbing the head of the city by taking a ladder can also break through the daimyo's mansion and save time.

At that time, the main reason was that the communication method was too backward. If the various armies of the Jin people could communicate with each other, then he would draw a lesson from the defeat of Cangzhou and the defeat of Taiyuan, and the defenders of the towns and cities that had a little relationship with Zhao Chongyang, the genius of the Taisong Dynasty, would have no chance of winning the Jin and Liao people. It's better to dodge as soon as possible and take a detour, anyway, the Song people have limited troops, and they are mainly infantry, so they will never run out of the city to face off with the Dajin cavalry in the field.

The first battle made Wan Yan Gao put away his contempt for Lu Junyi. I thought: It seems that a quick victory is not possible, and digging a hole may be slower than making siege equipment.

So he ordered the whole army to cut down trees and make ladders. Anyway, Wan Yan Gao hadn't heard of siege trucks and stone-throwing trucks or anything like that, so he didn't search for specialized carpenters. Anyway, the technical content of making a ladder is not high, and it doesn't matter if you don't have the tools to punch holes, just tie a small horizontal log to two long enough and slightly thicker woods.

What a fan offered the time to Wan Yan Gao, and a general named Xue Li Heishi, a member of Wan Yan Gao's subordinates, was also present. This Xue Li Heishi is the cousin of Xue Li Tiexi and Tongxi, although he is not as brave as Tiexi and Tongxi, but he is a famous wise general in the Jin soldiers, and he is a general known for his strategy.

Xue Li Heishi saw that the marshal only ordered everyone to cut down trees to make ladders, and did not send people to dig secret roads. Xue Li Heishi went to the handsome tent to ask to see Yan Gao.

When Xue Li Heishi came, due to the bad war, Wan Yan Gao was drinking alone in the handsome tent. Hearing that Xue Li Heishi was coming, he asked his subordinates to pour him wine as well, and the two discussed the war while drinking.

Xue Li Heishi said: "The marshal didn't send someone to dig a hole to repair the secret road, because he thought that although this plan of the military advisor was safe, it took too long, right?" ”

"At that time, we can modify the strategy of the military division. I don't know if the marshal took this into account, every big city in the Central Plains has a sewer, if we build the secret passage into the city, dig some more divergences in different directions, there will always be a direction that will be the same as the sewer.

We can find a hidden place through the sewers to expand the exit and sneak some people into the city. In the middle of the night, we will kill the soldiers guarding the gate and open the gate to let our army in, so that the daimyo's mansion will be easily breached.

Wan Yan Gao pondered for a while and said, "The method you mentioned is easy to say, but difficult to do. One is that the secret passage is too long, the air is not good, and the breath is not smooth, will it suffocate the people in the secret passage. The second is to ensure the distance between the secret passage and the ground, too deep to touch the sewer, too shallow, and afraid of causing the ground to collapse. ”

"According to the national teacher Lin Susu, the sewers in the city are generally built in the strata between one and two people deep, and our secret tunnels are dug between this depth."

In addition, Lin Guoshi also said that there must be vents at certain distances in the secret passage, so that people will not faint inside. I thought about it, if we were going to dig a secret passage, we could place a vent every one or two hundred steps, and the vent could be made of a bamboo tube that had been opened. ”

Wan Yan Gao said: "If the task of digging the secret path is given to you, and the three secret passages are excavated at the same time, how long do you estimate it will take to complete it?" ”

Xue Li Heishi said: "I promise to complete it within a month." ”

Wan Yan Gao said: "I will give you twenty days, and at most two days will be thrown for you to complete, because at that time, our ladder has been completed." Once the south gate is broken, the other city gates must also fully cooperate, and cloud ladders are erected on all sides to attack the city. In this way, the tens of thousands of horses in Lu Junyi's limited hands must not only divide troops to defend the city walls on all sides, but also block the Dajin warriors who broke into the city, and they will inevitably not be able to take care of each other. It was only a matter of time before the city was broken. ”

"Please rest assured, marshal, I will complete the task within the stipulated time." Xue Li Black Stone Road.

Wan Yan Gao said: "If this plan is successful, you should be the first to take credit, and I will ask for credit for you at that time." ”

In this way, after Yan Gao surrounded the Daimyo's Mansion, he did not attack the city for more than 20 days. In mid-October, all three secret passages of the Xue Li Black Stone had been dug up, and all of them were connected to the underground sewers.

Late at night on October 16, 6,000 golden soldiers, led by the three warriors of the tiger, the lion and the leopard, entered the secret passage and prepared to quietly infiltrate the Daimyo's mansion.

The golden soldiers of each battalion were also like ghosts, slowly crawling towards the Daimyo's Mansion in the dark night. In order not to alarm the soldiers defending the city, the ladders and weapons were tied on wooden skateboards, and slowly pulled over with simple wooden skateboards......