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After Wang Yan finished speaking, he looked at everyone and asked, "Tongguan is Xiongguan, who of you can tell me about the way to attack the city?" ”

Liu Fangliang stood up first and bowed down and said, "Jian Guo, the letter of surrender was shot, but Guan Nei did not respond. If there is no internal response, then we can only attack the city with ants, but Tang Tong's team built Tongguan very strongly, and I am afraid that the hard attack will cause heavy casualties. ”

The best way to break through the fortress is naturally to attack the heart and disintegrate the enemy from within. Along the way of the Ming army, many fortified cities were captured by frontal pressure and internal and external cooperation.

Attacking the heart is the top, attacking the city is the bottom, this is the principle.

Wang Yan bowed slightly, "Although Lone has cut down gold in many ways and sent 500,000 soldiers, but after all, the war has just begun, the situation is not clear, and the Jin country has not yet reached the point where the general trend has gone, so it is really unlikely that I want to start from within the Jin army at the moment, so it is really unlikely that the Jin army will be able to do it anyway." Lone thought that if he wanted to recruit the generals of the Jin State, he would at least break through the Tong Pass and form the momentum of Mount Tai and the tiger fighting the rabbit, so that a large number of Jin troops would take the initiative to surrender. ”

Wang Yan was silent for a moment, raised his head, and continued: "Since you can't expect problems within the Jin Army for the time being, then a hard attack will be a hard attack, and no matter how big the sacrifice is, you must take Tongguan as soon as possible." ”

After speaking, Wang Yan glanced at the generals, and all the generals were solemn after hearing this, knowing that this time they were really going to prepare for the dead, and there was nothing fancy to play with.

The Ming army of 300,000 people was stationed in Tunhenan, and the consumption was very large, even if the family had a big business, it could not afford to drag it out, and it was trapped under the fortified city for a long time, and the morale was bound to be slack, so it was necessary to break through the pass as soon as possible.

After Wang Yan finished speaking, he looked at Li Guo, "How about the results of the shelling of Tongguan?" ”

Li Guo hurriedly stood up, hugged his fists and replied: "Since October last year, the artillery has been bombarded for more than four months, and the front of Tongguan has collapsed in several places, but the Jin army is behind the wall, and there is still a wall, so even if the old wall is destroyed, it is still very difficult to attack." ”

Three years ago, the heavy artillery of the Ming army appeared in Xuzhou, and the 100-pound shells hit a hole and collapsed the strong Xuzhou City, which caused panic in the Jin Kingdom.

Jin Guo knew that the old wall was blocking the artillery bombardment of the Ming army, so he began to strengthen the wall three years ago, and after the wall, another wall was cast, which was three feet higher than the original old wall.

In this way, even if the old wall in front of it is beaten to pieces, after the Ming army breaks through the old wall, it will still have to face a new wall.

"Isn't the mortar cannon cast by Xin'an arrived?" Wang Yan opened his mouth and said: "This cannon has been tried, it is powerful, and it can jump over the first wall and directly hit the second wall." ”

"Back to the prison country, the artillery has just arrived, but according to the official of the Ministry of Industry, the range of this kind of artillery is only more than one mile, and the shells of the Jin army can hit three or four miles, and the artillery team may not be able to get close to the front of the artillery!"

Wang Yan had already thought about this question, and he smiled, "With Li Dingguo's style of play in Nanyang, dig a trench and move forward, and the artillery team will drag the cannon under the wall along the deep trench, and then set up artillery to bombard. This kind of cannon does not need to be directly aimed at bombardment, it is to throw the shells out, you can mount the cannon in the pit, don't leak your head, the red-coated cannon in the city will not be able to hit. ”

Li Guo hadn't seen the mortar cannon, he didn't know if it would work, and some generals were skeptical, "Prison country, even if the red-clothed cannon in the city can't hit it, the artillery team is too close to the city, and it is easy to be raided by the Jin army in the pass." ”

Not long ago, the Ming army bombarded Tongguan four miles away from the city, and did not want the Jin army to suddenly rush out of the pass, so frightened that the artillery team fled in panic, and was taken away by the Jin army 20 guns, and more than 10 were blown up, and the Ming army suffered heavy losses.

Because of this incident, the artillery bombardment of the Ming army stopped for a long time, and Li Guo was also said a few words by Wang Yan.

Now that the artillery is to be erected in the next mile of the city, it is very likely that the Jin army will go out of the city to grab the artillery under the cover of the artillery at the head of the city.

Wang Yan frowned, pondered for a moment, suddenly his eyes lit up, and he said with a smile: "Then dig a deep ditch in front of the pass, build an earthen wall, send troops to garrison day and night, and trap the Jin army in the pass first." After a few days of shelling, a gap was opened in the earthen wall and a direct attack was reached. ”

In fact, this is still based on Li Dingguo's experience in fighting the Heyi fortress, and the advantage of this is that the Ming army can pass through the "zhi" trench and directly enter the next mile of the pass.

If the trenches were not dug and the Ming army attacked from the ground, then as soon as they entered the four-mile range, they would be bombarded by the artillery of the Jin army.

When everyone in the hall heard this, they all began to talk about it.

Li Guo understood what Wang Yan meant, and saluted: "The minister knows!" ”

Wang Yan immediately said: "Digging a trench is a big project, from tomorrow, the horse army and the cavalry of various departments will cover, the armed guard army will dig the trench to the pass as soon as possible, the artillery team will prepare to set up artillery bombardment, and the Zhenwu army will be ready to attack the fortifications." ”

"No!" All the generals stood up in unison and clenched their fists in agreement.

Beginning on February 10, the Ming army began to dig trenches under the pass, which quickly attracted the attention of Tang Tong. He didn't understand what the Ming army was going to do, and at first he thought that the Ming army was going to dig tunnels, but it didn't look like it.

At this time, the artillery at the head of the city fired several shots, but the shells could not hit the Ming army in the trench, which made Tang Tong frown and realized that if the Ming army entered the city in this way, the artillery on the city would not be able to hit it at all.

For a while, he hurriedly stopped blocking the door, asked people to clear the stones in the doorway, and then sent cavalry to rush out.

The cavalry of the Ming army immediately greeted them, and the two sides fought for a while. Although the Jin cavalry fought within the artillery coverage of the city wall, and the Ming cavalry was often shelled, the Ming army's trench digging operation was not interrupted by the Jin army under the expulsion of the Ming cavalry and the resistance of the musketeers arranged in the trenches.

From time to time, the cavalry of the Ming army was beaten by the artillery of the city, and the cavalry of the Jin army was often shot by the Ming soldiers in the trenches.

Tang Tong saw that the interference did not have much effect, but the Jin cavalry died a lot, and the interference stopped two days later.

By February 17, the Ming army's trench had been dug to a mile from Guancheng, and two deep trenches parallel to Guancheng were dug here, and an earthen wall was built between the two trenches.

Wang Yan's proposition is that things that can be solved by spending effort and relying on repairing fortifications will never be easily exchanged for human lives.

Li Yuanyin's armed guards were good at digging tunnels, and other fortifications were also good, plus the Ministry of Works issued a part of the shovels to each town, and the entire project was quickly completed in less than ten days.

On 28 February, Haoge in Weinan County also rushed to Tongguan after hearing that Wang Yan had arrived at Tongguan.

The next day, after completing the fortifications, the Ming army began to prepare for the bombardment of the city. After the trench was dug, the Ming army at the bottom of the ditch pulled the stone stone and crushed it, so the ground at the bottom of the ditch was very solid, and there were wooden planks in some places, and the mortar would not be too heavy to let the gun wheel sink.

When the Ming army used cattle and manpower to pull the cannon down the trench and down the wall, Tang Tong was accompanying Haoge to the city to check the enemy's situation.

The Ming army had strong troops and excellent equipment, which were all expected by Haoge, so when he stood on the wall, saw the Ming army camp outside the pass, and saw the old wall full of holes, Haoge was not surprised.

However, Haoge is not worried about Tongguan's city defense system, and is quite confident. Most of the silver money in the treasury of the Jin State in the past three years was used to strengthen the fortress and cast cannons, and it was the first time he had seen such an exquisite defense system after a hundred battles.

Haoge felt that if he was to attack, even if hundreds of thousands of male soldiers might not be able to capture it, Wang Yan wanted to attack, and Tongguan would definitely make him hit his head and break the blood flow, shattering his teeth.

At this time, Haoge was walking in front, and the Jin army on the city saw Haoge walking on the broad city wall, and the commanders at all levels saluted him from time to time, and many people's faces leaked with excitement, and Tang Tong shouted and reprimanded from time to time in the back: "Your Majesty patrols the city, cheer up the commander!" ”

At this time, Hauge walked to an enemy platform and stopped. The enemy platform is a high platform extending from the city wall, a sharp corner protruding to the western fortress, and artillery is set on it, in addition to suppressing the enemy besieging the city, the enemy platform must cooperate with each other to strangle the enemy soldiers who attack the enemy platform.

This is the thought of Xu Guangqi, the minister of the Ming Dynasty, and it is also the later Yuan Chonghuan in Liaodong to protect the city with Taiwan.

"Aiqing, what is Ming Jun doing?" Hauge stood still, then suddenly pointed out of the city and asked.

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