The submission of the country played a good demonstration effect, and the other Hu tribes in the north sent people into Chang'an after the great fear to worship the Tang Nagong to show their submission. Among them, in addition to the tribes such as Gao Che and Rouran, who were originally at odds with the Daiguo, there are also many Hu tribes who were originally subordinate to the Daiguo. Now that the country no longer exists, they naturally have to find another way out.

Survival on the steppes is very cruel, and the weak tribes can only rely on the strong forces to survive. Therefore, except for some tribes who are unwilling to surrender to the Tang Dynasty, basically those tribes have chosen to surrender to the Tang Dynasty.

Those who do not surrender to Datang obviously do not dare to stand up and be enemies of Datang. After all, the lesson of Daiguo is just around the corner. These tribes, which are inferior to the Dai Kingdom, if they really become enemies of the Tang Dynasty, they will definitely have only one way to die.

As a result, this small group of people has no choice but to move north or west. Of course, Datang doesn't have the energy to care about them so much now, but if it waits for the future, it may be.

After the surrender of the country, the area north of Yinshan calmed down. In Yanmen, Daijun and other tribes to the north of the county also came to surrender at this time, on this trend, Li Xin simply set up the defense line in the area of the old Great Wall, once again expanded a lot.

However, these tribes were treated differently from Shiyiqian, and Li Xin did not directly divide these places into counties, but temporarily retained their original appearance. Because until now, he himself didn't have much confidence in Daizhou's affairs, so he was going to see the effect first.

In this way, it means that the grassland desert north of Yinshan Mountain and west of Yanshan Mountain has basically been calmed down. At least, large-scale wars will not happen again, and many of Datang's troops will not be pinned down in this area.

Datang, which was originally surrounded on all sides, can be regarded as opening up a situation and completely unraveling the encirclement on one side. The rest is to concentrate on dealing with the great enemy in front of you, Yan Guo.

At the end of February, Li Xin officially ordered that some counties be adjusted.

The big strategy is to divert some of the more populous areas and set up some new county seats. For example, in the past, some places used to set up county seats, but because of the later wars, these places were abandoned.

Now is the time to recover. Subsequently, more county towns began to emerge in various places, which made it necessary to adjust the planning of counties. In particular, in the past, some counties were significantly too large in jurisdiction, while others were too small.

In line with the principle of balance and equal distribution, this time in the adjustment, Li Xin reduced some of the counties, while some became larger. On the whole, it takes into account the local development situation, leaving enough space for future development.

After conducting inspections in Shuofang and other places, the Ministry of Industry and the Ministry of Household finally selected a location and began to build a new batch of farms. This thing is not a city, it's just a facility in the city, and all you have to do is send someone to manage the guards.

So, once you have the preparation in place, everything goes very smoothly. By mid-March, the local farms were already in full swing, and the border areas were bustling with activity.

At the same time, the craftsmen sent by the Ministry of Industry also gathered the Hu tribe on the grassland and officially began to build the cities of Daizhou. However, according to the order of the first big and then the smallest, this thing can be described as a big move on the grassland, and it is by no means a year's work that can be completed.

In particular, he had to guard against those unwilling Hu nobles, who might take the opportunity to attack the Tang army and civilians, so Yu Song had to muster up his energy to prevent it with all his might. Even Shuofang, which is in the south, has never relaxed.

In addition, Li Xin encouraged the reproduction of the population, so, basically, at the beginning of the third year of Tianding, the entire Datang began to become in full swing. No matter who it seems, Li Xin now seems to be preoccupied with internal affairs, and he doesn't care much about external affairs.

But what few people know is that under such circumstances, Li Xin issued a secret decree to Zhou Tong, Li Erhei, and other generals who were leading troops abroad. Among them, there is only one request, that is, let these generals fold up and put forward their own Pingyan strategies.

Although he said that he did not have the idea of sending troops to war with Yan State immediately, he still had to make the preparations that should be made.

It was originally a habit for Li Xin to convene the generals and ministers to discuss the war plan before each battle. The larger and more important the war, the more so, even with Wang Meng and other civil servants will also join.

But this time, he's got used to it. He was going to take a look at the results of the independent thinking of these generals below, and then gather the wisdom of the crowd from them, maybe he could come up with a complete plan.

Of course, this set of plans must be discussed with everyone again before it is officially implemented.

With the issuance of the secret order, the generals everywhere became busy. Especially Zhou Tong and Hu Tian, who are sitting in Longxi and Jincheng, they have hardly participated in major wars in the past few years, so they are really a little bored.

Li Xin's order can be regarded as allowing them to find something to do. However, because of the requirement for secrecy, this matter can only be done by themselves, and even the staff cannot know about it. In this way, things are not so easy to accomplish.

Until the beginning of April, generals from all over the country sent this Ping Yance one after another.

Li Xin now has one more thing in his hand, that is, a sand table newly made by the Ministry of Industry. This thing is much more vivid when combined with the map drawn by the senior department, and once it was launched, it was immediately loved by the majority of generals.

Li Xin didn't gather too many people to discuss together, but just left Tu Qi by his side as a staff officer.

Every day, he stayed in his study, holding the generals' recitals, and constantly arranging troops on the sand table. And Tu Qi, at this time, acted as Murong Ke, responsible for cracking the various attacks of the generals.

The two of them went back and forth like this, and tested all this piece of Ping Yance. The pros and cons of each person's proposal have been noted one by one. With that, there are more ways to improve.

Although this is not necessarily the case in reality, at least most of the possibilities have already been deduced. From this, Li Xin basically came up with a relatively perfect plan.

The rest is to wait until the time is right, and gather the generals to do another big offensive and defensive deduction.

After all, there is great strength in numbers, not just brute force, but also in intelligence. With the two of them alone, there are some things that are always unexpected. In the most comprehensive and largest deduction, more problems will inevitably be found and more solutions will be solved.

Those people in Yan Kingdom may be guarding against Datang day and night, but they don't know that Li Xin at this time has already begun to put them on the table, ready to solve them.

The time gradually came to May, and it was the coming of the summer harvest season, so Li Xin had to temporarily put aside the deduction of Pingyan's affairs and concentrate on taking care of the summer harvest.

In this year, sacrifices are always very important, and the emperor and queen soil are always sacred in the hearts of the people, and Li Xin went to sacrifice according to the custom.

But this year, there was a small episode in the middle, Lantian County, not far from Chang'an, became ill from hard work, and finally died of merit and fell on the post.

It is said that before he died, he worked in the fields with the people, and he was tired for several days. In addition, he is not young, and his fifties are already an advanced age in this era. Therefore, it is ultimately overworked.

This matter was played by the local government, and then after a detailed investigation by the Inspector of the Imperial History and the General Administration, it is indeed true. After Li Xin heard this, he couldn't help but sigh, some people are really living for their ideals.

In both public and private terms, this matter deserves great praise. Such a person should be remembered in history, so that future generations can know his example!

Therefore, Li Xin personally ordered that in addition to caring for his family and children, he also ordered the Lantian County government and its hometown to engrave a monument to commemorate him, so that the people and officials in the Tang Dynasty would know his deeds and take them as an example. Moreover, it also specially asked the Ministry of Rites to draw up the honor, and gave the post and title of Taishou.

Moreover, this incident touched Li Xin a lot. In the past, he always thought that there was no such pure person, but now it seems that it is just because he has not encountered it. If all the courtiers of the Tang Dynasty are like this, I am afraid that the whole world will be peaceful.

If this is really the case, isn't he, the king of Tang, just ruling by hanging the arch! There is no need to work on state affairs every day, let alone set up so many supervisory bodies to supervise the administration of officials.

An idea slowly took root in his heart.

With the end of the summer harvest season, Li Xin began to go out on patrol again. Unlike in the past, this time he mainly inspected the rivers and transportation, and saw how the water and land facilities in various places were developing now.

Especially for the dikes and lake weirs in some key places, they are the key places he wants to check on this trip. After all, if there is a sudden increase in rain, these places are likely to form a source of danger and threaten the survival of the surrounding people.

And just when the whole Tang Dynasty was busy making the country stronger and more prosperous, Murong Chui, who was in Fanyang Kingdom, also became busy at this time.

He left Fan Yangguo and went directly north to Yanjun. After that, he began to adjust the deployment of troops on a large scale, and although he did not attack the capital of the army, he began to drill on a large scale.