The next day, the sky was bright, Wu Sangui received the news of the Tartar retreat, Wu Sangui was overjoyed, he didn't expect that his Ming Emperor would be so powerful, even the Tartar retreat was counted.

The happy Wu Sangui immediately told Zhu Youzhen the news, but Zhu Youzhen didn't show much excitement about the news, after all, the Tartar retreat was something he expected.

Zhu Youzhen did not choose to pursue, firstly, Dolgon is a master of using troops, and he will not be unprepared in the retreat map, and secondly, Zhu Youzhen cannot draw troops to pursue, although Zhu Youzhen uses the system to exchange a lot of troops, but this is not a long-term solution after all, and those individual troops are exchanged for a lot of money, and the current Ming Dynasty can no longer support Zhu Youzhen's large-scale exchange of troops.

Therefore, developing the economy, increasing the revenue of the state treasury, and enriching the country and strengthening the army have become the first things that Zhu Youzhen needs to consider.

Now the Tartars will devote themselves to the fight with Mongolia, and will no longer threaten the safety of Shanhaiguan for a while, and Zhu Youzhen will take advantage of this opportunity to recuperate.

First of all, the first thing that needs to be recuperated is Shanhaiguan.

In these years, Shanhaiguan has been fighting for many years, the fields have long been barren, countless Han people have been displaced, and after Wu Sangui responded to the call to abandon Ningyuan, there is no Ming city outside Shanhaiguan, so all the displaced people will surely pour into Shanhaiguan.

What Zhu Youzhen has to do is to build Shanhaiguan into a city that attracts Han people, and the people of Liaodong are fierce, and this will be the rebirth place of Guanning Iron Cavalry of the Ming Dynasty.

"What? Issuing notices to recruit displaced people? When Wu Sangui heard Zhu Youzhen's order, he was in trouble, when he retreated from Ningyuan this time, Wu Sangui took 100,000 family members, and how to settle these hundreds of thousands of family members has already given Wu Sangui a headache, and now he has to recruit new immigrants, Wu Sangui is of course in difficulty.

The most critical thing affecting the recruitment of immigrants is the problem of grain and grass, in the past, the grain of Shanhaiguan was transferred by the Beijing Division, since the Beijing Division

After the siege, the food supply was cut off, and now the army's grain and grass cannot be guaranteed, and Wu Sangui has no extra food to supply the displaced people.

"Your Majesty, it's not that Weichen shirks it, it's really that Weichen doesn't have so much food and grass to supply the people, and the minister is really powerless." As a military general, they all like to tell the truth, and Wu Sangui is no exception.

"Don't worry, I won't embarrass you, I came this time to bring 30,000 cattle and sheep from Mongolia, these are your grain and grass during this time."

"30,000 sheep and cows?" Wu Sangui did not see 30,000 cattle and sheep.

"Don't worry, you'll arrive at Shanhaiguan tomorrow morning."

"Also, these are some sweet potato and potato seeds, and you tell people to plant them, remember to use this fertilizer." After Zhu Youzhen finished speaking, a eunuch had already brought more than a dozen boxes of boxes, and there was no need to think about it, these were all exchanged by Zhu Youzhen using the people's heart system.

"Also, I need you to build a new city fifty miles east of Shanhaiguan immediately after recruiting the displaced people, just call it Guangfu City, you can't do without our Ming city outside the pass, do you understand?" Zhu Youzhen looked at Wu Sangui with a serious face.

"Obey." Of course, Wu Sangui understood the emperor's deep meaning, and besides, the last city outside the Ming Dynasty was still lost in his hands.

Wu Sangui's actions were very fast, and while arranging for the people to plant food, he had already issued a notice to recruit the homeless, and the smart Wu Sangui directly made it clear in the notice that he would ensure the food and clothing of the homeless.

The next day, Zhu Youzhen handed over the promised 30,000 cattle and sheep to Wu Sangui, in fact, these 30,000 cattle and sheep have always accompanied Zhu Youzhen.

Since Zhu Youzhen completed the Tianyuan task, he opened the ring space. Through this ring space, Zhu Youzhen was able to carry the object with him while shrinking, so the 30,000 samples followed Zhu Youzhen all the way from the prairie to the Northeast.

When he saw 30,000 sheep appear, Wu Sangui's admiration for this young emperor reached the attraction, although he didn't know how the 30,000 cattle and sheep came from, but Wu Sangui could imagine that this was definitely not a purchase.

It is absolutely impossible for such a large-scale cattle and sheep to exist in the interior, but Mongolia has long stopped trade with the Ming Dynasty at the request of the Jurchens, and even if there are private contacts, there will not be such a large scale, so it goes without saying that these cattle and sheep must have been taken by means of war.

Coupled with the Jurchens' unexplained withdrawal of troops, it is conceivable that something big must have happened on the Mongolian side, otherwise it would be impossible for the Jurchens to not want the fat in their mouths.

However, with 30,000 cattle and sheep, Wu Sangui is more confident, and he is no longer afraid to recruit displaced people.

When the Han refugees from all directions heard that Shanhaiguan could ensure food and clothing, they all poured over, and in less than three days, 100,000 displaced people had gathered outside Shanhaiguan.

And the grain given by the emperor also came with good news, in less than three days, more than a dozen boxes of potatoes and sweet potatoes were harvested dozens of carts, as many as tens of thousands of catties.

Except for some of the grains that were collected in the granary, the rest was made into seeds, which were arranged by Wu Sangui for those female displaced people to plant.

As more and more displaced people grew, Wu Sangui, under the instruction of Zhu Youzhen, distinguished the entire displaced people.

For those who were physically strong and capable of fighting, they were all integrated into the army, and those who were slightly less in health were all integrated into the labor team, responsible for planting and repairing the city, and the old people and women were all integrated into the logistics group for land reclamation and kitchen.

Under the command of Zhu Youzhen, Shanhaiguan at this time was a thriving scene, and there were as many as 30,000 displaced people, all of whom were taken to Beijing by Zhu Youzhen.

In Beijing, Zhu Youzhen had already chosen a place for them, and here Zhu Youzhen was going to find a tiger general for them to train them.

At present, Zhu Youzhen is not yet able to afford the large-scale preparation of the corps, and he wants to start experiments to build a loyal and responsible army.

As for the attraction of this army, Zhu Youzhen is also constantly reflecting, he feels that he can't just know how to be a soldier and eat food like the previous army, and fight for money and money.

Although such an army is very well organized, its combat effectiveness is also the worst, and more importantly, such an army has no soul, and the loyalty of an army without a soul is also very poor, and mutinies on the battlefield are a common thing, and Zhu Youzhen does not want to encounter such a scene on the battlefield when the time comes.

How to build a loyal and responsible army has become a difficult problem for Zhu Youzhen at this stage.