When Dolgon was hesitating, Ning Wan, who accompanied him, told him that Huaxia was at the beginning of its establishment, and the people's hearts were not attached, and if the iron cavalry of the Qing Dynasty appeared under the Jingshi City in time, Huaxia would definitely panic, and as long as the strategy was right, it was very likely to break through the Jingshi.

Hong Chengchou also made suggestions: first, in order to speed up the march, he could borrow Mongolia from the west, avoid Shanhaiguan, and go south from Miyun and Jizhou to take the Beijing division; Second, the Ming Dynasty perished, Wu Sangui of Ningyuan, has become a lonely, no master of the minion, can be recruited to surrender, if Wu Sangui is willing to submit to the Qing Dynasty, then the Qing Dynasty from the Shanhaiguan in western Liaoning to the south, not only can get a complete army, but also open up the passage of western Liao.

There is no conflict between the opinions of the two, it can be said that they complement each other, Dolgon has adopted, but he has surrendered Wu Sangui several times, but he has been sternly refused, although this time he sent a messenger to surrender, but for the surrender, he did not have much hope, the army still went west, ready to bypass Yiwulu Mountain, and ran to the main vein of Yanshan Mountain in the west of the lofty mountains.

Wu Sangui received Dolgon's letter two days later, and according to his temperament, he took a look, and then threw it away, without even replying to the letter, or threw it directly into the toilet, and didn't pay attention to it.

But this time it was different, the emperor of Huaxia was by his side, in order to avoid suspicion, under the persuasion of Wu Xiang, he did not open the letter and personally sent it to Li Zicheng's big tent.

When Li Zicheng heard that Wu Sangui asked to see him, he thought it was a military message, and when Wu Sangui took out Dolgon's letter, he couldn't help but be stunned: history is still so similar, Dolgon's letter of persuasion has still arrived!

Fortunately, I had an insight into history and rushed to Shanhaiguan and Ningyuan early.

Wu Sangui also did not have the will to submit to the Manchu Qing Dynasty, otherwise he would not have sent Dolgon's letter of surrender to him intact......

What did Dorgon promise Wu Sangui in his letter of surrender? Is it a high-ranking official, a prince and a general, or a wealthy and beautiful woman?

Let's see, at this time, there is no need for him to guess Dorgon's mind!

Li Zicheng tore open the seal, took a closer look, his originally calm face, he didn't feel a slight wave, his brows were not deeply locked, he thought for a moment, handed the letter of persuasion to Wu Sangui, and said lightly: "Uncle Chang also take a look, this is written by Dolgon to you!"

Wu Sangui got up, took the letter with both hands, only glanced at it, beads of sweat oozed from his forehead, and said busily: "The emperor Mingjian, the minister has absolutely no intention of having a private meeting with Dolgon, Dolgon had entrusted the minister's uncle Zu Dashou to persuade him to surrender the letter, but every time he was scolded by the minister, he was scolded......

Li Zicheng waved his hand, interrupted Wu Sangui's confession, and said with a faint smile: "I understand that if the eldest uncle disregarded the national righteousness, Ningyuan and Shanhaiguan would have fallen into the hands of the Tartars a long time ago," paused, and said: "That's why Dolgon will continue to increase the weight, this time it turned out to be the 'King of Pingxi', can the eldest uncle understand Dorgon's thoughts?" ”

"Dolgon is just painting bread to satisfy ......hunger," Wu Sangui said angrily: "The minister is a broken body, and he will not take refuge in the Tartars, an uncivilized person like a wild boar, I don't know how my uncle takes a fancy to it......"

Li Zicheng thought about it for so long, and already had an idea in his heart, so he smiled and said, "How will the eldest uncle deal with this letter of persuasion?" ”

"The minister didn't plan to reply to the letter at all......"

"In this way, will you not fail Dorgon?"

"The Emperor's ......"

Li Zicheng looked at Wu Sangui's eyes and said with an indifferent smile: "I have already received the message that Dolgon is going south, but I don't know the route of the march. ”

"Dolgon is not sure to persuade his ministers to surrender, so he doesn't dare to go to Shanhaiguan, he must be borrowing the Mongolian ......" Wu Sangui was taken aback, and hurriedly said: "Your Majesty, we will deploy heavy troops in Ningyuan, but Dolgon is avoiding this line, we are withdrawing our troops and defending back, and it is too late......"

"Yes, the Tartars are all cavalry, even if we chase behind, we can only eat dust," Li Zicheng said with a smile: "It depends on the eldest uncle!"

"Minister...... How could Dolgon obey the dispatch of the minister...... Wu Sangui suddenly understood, and hurriedly said: "The emperor's intention is to let the minister pretend to agree to Dolgon's conditions and attract the Tartar cavalry?" ”

Li Zicheng nodded and said, "You don't have to promise too much, I obviously agreed in my heart, but I am worried that Dolgon will regret it in the future and not honor the generous conditions offered today!"

"The minister understands, the minister will go back and immediately return the letter to Dolgon!"

After Wu Sangui said goodbye and left, Li Zicheng immediately summoned Liu Yunshui and ordered him to immediately send additional rangers to the west and north to investigate the information of the Tartar cavalry.

The repair of the city wall and city gate of Ningyuan has ended, and more than half of the soldiers are assisting the people to repair their houses, and the people who have returned to the city one after another have built their homes with the help of the soldiers.

However, the news of the Tartar cavalry's southward movement made Ningyuan City suddenly nervous, and the soldiers stopped repairing the dwellings, but strengthened the city defense, and improved the original trench outside the east and north cities where the Tartars might appear, and sharpened wooden stakes were placed upside down in the trench to prevent the Tartar cavalry from approaching.

Of course, the defense of Ningyuan City was not the first line of defense, and Li Zicheng personally inspected along the side wall to find a suitable place to block it.

On the 15th, Wu Sangui again received a letter of persuasion from Dolgon, who swore an oath and promised Wu Sangui in the name of the regent that as long as Wu Sangui offered Ningyuan and Shanhaiguan, he would immediately entitle Wu Sangui the status of "King of Pingxi".

However, the rangers sent by Liu Yunshui found out the location of Dolgon's tens of thousands of cavalry: after Dolgon crossed the Yiwulu Mountain, he did not continue to the west, but cut in from Wenghou, along the Daling River, and went south from Yizhou, which seemed to be going straight to Jinzhou.

Li Zicheng got Dolgon's marching route, and the corners of his mouth unconsciously showed a sneer, Dolgon was finally coming.

It's really good to go south from Jinzhou, so that it won't intrude on the Beijing Division, and the heavy troops deployed by the Heavenly Mandate Army in Ningyuan and Shanhaiguan are waiting!

However, along the side wall, the plan of using the mountain to intercept the Tartar cavalry could not be implemented, there was no large mountain range outside Ningyuan City that could be relied on, if you could not fight with the Tartars outside the city, then you could only rely on the city wall.

It may be right to stick to Ningyuan City, but I don't know when the food will come, and if there is no food, how can I defend the city? There are also these people who have just followed the Heavenly Mandate Army to Dao Ningyuan, tossing back and forth twice, and most of the people are short of food.

The matter of pacifying and helping the people was handed over to Li Guozhen, and Li Zicheng immediately convened a military meeting, in addition to the generals of the first and third battalions, as well as Wu Sangui and deputy general Yang Kun.

As a result of the discussion, Wu Sangui's Liao soldiers and Li Xin's third battalion were both stationed in the city, while Liu Yunshui's first battalion was stationed in Shoushan, northeast of the city, which was not only a horn with Ningyuan City, but also guarded the seaside wharf, waiting for the fleet to transport money and grain.

After the military meeting, Li Zicheng made every effort to prepare for war, and according to Wu Sangui's experience, the only way to deal with the Tartar cavalry was to defend the city, relying on the defensive advantage of the city wall to confront the Tartars.

However, he felt that if he passively defended the city and let the Heavenly Mandate Army be trapped in the city, it would be a bit aggrieved.

Although the Liao soldiers outside the pass have fought with the Tartars for many years, they have won fewer and lost more, so that in the land of Liaodong, there is now only one Ningyuan left, and it seems that the Liao soldiers' methods of dealing with the Tartar cavalry are definitely not clever.

The Mandate of Heaven army is mainly infantry, and it is almost impossible to fight with cavalry in the field, unless it has an absolute advantage in weapons, but the army equipped with rifles and mountain artillery is only a division, only 20,000 people, so that they can deal with nearly 100,000 Tartar cavalry......

If you rely on the mountain, you can weaken the advantage of the Tartar cavalry in combat effectiveness, but unfortunately, outside Ningyuan City, except for the first mountain in the northeast corner, there is barely a little terrain difference, and the rest are plain and hilly terrain, and there is no terrain needed at all.

Li Zicheng thought about it for a long time, thinking of the decisive battle with Dolgon in the Hexi Governor's Mansion that day, and his heart didn't move, since there was no mountain, why didn't he create a mountain?

Just take advantage of this opportunity to let Wu Sangui's Liao soldiers see that the combat effectiveness of the Mandate of Heaven Army can be comparable to the cavalry of the Tartars!

Li Zicheng took his own soldiers out of the Chunhe Gate in the east, there were many soldiers digging trenches outside the city gate, Bai Guangen, the commander of the third battalion and the fourth division, saw Li Zicheng coming to inspect with his own soldiers, and hurriedly trotted over, with obvious dissatisfaction written on his face, "This is the battlefield, why did the emperor come?" ”

"What's wrong with the battlefield, can't I come? Don't forget, I've been on the battlefield and fought a lot of battles!" Li Zicheng smiled faintly, but his eyes were scanning the trench that the soldiers were digging.

There were three trenches, stretching for several miles, as wide as one battle and five battles, but the distance between them was less than one battle, and the nearest trench, more than a thousand paces from the city gate, should be the range of the red-coated cannons.

Bai Guangen saw that Li Zicheng had been staring at the trenches, thinking that something was wrong, and hurriedly said: "Your Majesty, these trenches are already there, but they are only partially blocked, and the brothers are cleaning them up and deepening them, but what's wrong?" ”

Li Zicheng bowed slightly, the original trench should be no problem, the enemy in Ningyuan City is still the cavalry of the Tartars, and the three trenches should be able to effectively block the cavalry of the Tartars.

But this kind of trench is still passively defended, if the Tartars fill in the trench, or even as long as a few roads are filled, the trench will lose its effect, and the real killing of the enemy is still very limited.

In Li Zicheng's mind, he had already thought of a complete set of plans, so he said: "Guang'en, there is no need to deepen, the width is enough, what you have to do now is to dig out a longitudinal ditch, connect the three trenches, and extend it all the way to the moat!"

Bai Guangen was puzzled for a while, and hurriedly said: "Your Majesty, why did you extend the trench to the moat?" ”

"Extend to the moat, and there will be a basis for advance and retreat," Li Zicheng said with a smile: "Not only that, but also fill in the trench a little, not more than the height of the soldiers!"

"The Emperor's ......"

Li Zicheng told Bai Guangen about his combat intentions, and drew a simple sketch on the grass, Bai Guangen only then understood, while asking the soldiers to change the shape and structure of the trench, he was secretly surprised in his heart, and only the emperor could come up with such a combat strategy, I don't know how many Tartars can be killed by this strategy......

Bai Guangen was still a little stunned, Li Zicheng had already gone to Weiyuan Gate in the north, and asked Wang Guangen's department of the Third Division to dig a criss-crossing trench outside the north city according to the method just now.

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