No, that Su Gavin knows their advantages very well, and suffered the loss of two sieges, if they really dare to come for the third time, it doesn't just fit our wishes, I'm afraid he doesn't have the guts. Li Dedao.

The construction speed of the Sentinel City is very fast, the cement and masonry, most of which are made of fired bricks, and all the people are digging pits for three days, and the foundation of the city wall is very important, and a small number of iron skewers are added to it.

The reason why iron is used is because it reduces the thickness of the wall and makes it stable, and increases the strength and reduces the material input.

The plan of the Sentinel City is to be able to accommodate 50,000 people, which belongs to a good pure military city, and will be used to garrison troops in the future.

Stone was essential to the city walls, and in order to increase the sturdiness, the outermost part of the city wall was made of stones, and the inner parts of the city were relatively simple, all of which were reinforced with ladder pillars made of bricks.

Su Gavin's spies watched from a distance every day, and the vanguard did not pay any attention to these people, obviously to show you that a city would be built here.

In more than a month, spring ploughing began, not only the military city reclaimed a large area of land, but even the Sentinel City also planned to cultivate the fields, the purpose is to meet the self-sufficiency of the Sentinel City in the future.

The geographical location of the ploughing plan is very good, the main roads around are set up patrol posts, once there is a situation can be contacted by wolf smoke, there are patrol cavalry in peacetime, safety may not be really guaranteed, but it is certain to be able to release the signal at the first time.

Su Gavin watched the vanguard city be built for more than a month, and a large number of materials and manpower ensured the efficiency of the project, for them such a construction progress was something they could never have dreamed of.

At present, the city is about to be completed, Su Gavin can only watch and be anxious and can't do anything, sending troops to attack them Now the number of soldiers and horses is not enough, even if there are enough soldiers and horses, they do not have such courage.

"General, I'm afraid it's too late if you don't send any more troops." Several of his men reminded.

It wasn't clear to Sugavin that he was worried more than anyone else, but what he could do.

"Bring the news back to the capital, mobilize 50,000 soldiers and horses to garrison here, since they are building a city under the mountain, then we will build a city at this cliff barrier."

Su Gaiwen's words immediately stunned the generals, is it really okay to build a city on the mountain, and can they afford the manpower and material resources consumed.

But since the great general had said so, they had no choice but to obey orders, and the Goryeo people began to build the city wall as well.

The scouts of the vanguard immediately passed the news back after seeing it, Li De and the others now knew that the Goryeo people were building the city wall here, Li Jing said after studying the intentions of the Goryeo people: "Dadu Governor, if the Goryeo city wall is successfully built, I am afraid that this road will be completely blocked, and it is almost impossible to attack, but the advantage is that they will not be able to pass it either." ”

"What's the benefit, they have blocked their own roads, it looks like there is a way, but can they seal the entire border." Li Dedao.

"Governor, in this way, didn't the Goryeo people help us, the purpose of our Sentinel City is to keep an eye on them, now it's okay, we can save a lot of troops, but it's a pity that the materials that have been put in." Hobida Road.

"It's not a pity at all, the construction of the outpost city has nothing to do with the prevention of the Goryeo people, and the important thing is that we need such an outpost, which can provide troops, store grain, and reclaim land to develop agriculture after the migrants pass, and so on, and sooner or later, the northern Liaobei region will be able to develop into a state capital city like Youzhou." Li Dedao.

He Bida thought about it, and said in his heart that it was worthy of the strategy of the Grand Governor, and it was really a good way to do it step by step, and it was effective for governing these empty lands.

Li De didn't expect such a reaction, and suddenly felt that Su Gavin was really a rare talent, don't look at the current situation that seems to be beneficial to the vanguard.

In fact, if he was Su Gavin, he would have given the order to build a strong man, rather than using people to garrison, it is better to build a wall, so that people cannot easily cross the wall, or even impossible to cross.

Leave most of the manpower to do more.

Although the soldiers and horses of the first two Goryeo alliances defeated the soldiers and horses of the Sui State, they also had a lot of manpower and material resources, even if they were captured, they were limited after all, and having more armor could not avoid the fundamental problem of insufficient national strength.

Now seeing that it is impossible for the vanguard to leave, and they are now passive in building the military city, it is really decisive to be able to have this countermeasure.

"Su Gavin is very difficult to deal with, since they have built a wall, our Sentinel City is relatively safe, but we must not take it lightly." Li De instructed.

During the period of land reclamation, all the horses were left in the necessary number, and all the others were put into production, and in a year, the sixteen states of Youji recruited a lot of soldiers and horses.

Some of them were added to the barracks, and some of the veterans who had reached age or were injured were transferred back to the city, and all of them were placed in the work of the city's joint defense.

According to statistics, there are 10,000 retired veterans, all of whom have been injured or meet the age standards, not to mention sixty years old, at this time there is no future difference, and now they are equivalent to the old people of the future generations when they are middle-aged.

Li De forcibly discharged the seriously wounded soldiers who had reached the age of forty-five, and many of them had retired from the regiment of several lieutenants.

They are all veterans of a hundred battles from birth to death, and after the implementation of Li De's plan, these veterans with military achievements are all on errands at the yamen, and their lives are as simple.

There is not only a plan for retirement and resettlement work in Youzhou City, but also for the soldiers who have not started a family to consider the blind date, after the spring ploughing, Li Shimin is in charge of these things, and the entire Sui State has heard that as long as there is a woman willing to marry into the sixteen states of Youji, the distribution of land and property is the same.

If you marry a vanguard, then you can directly distribute the cultivated land, have a lot of benefits, and you don't pay attention to remarriage, and there are not too many rules and regulations in the decree of Youzhou City.

Many people brought the news of life in Youzhou City to their relatives in letters, and many people did not believe it after seeing it, and encouraged them to do business and only set up stalls in the market without charging taxes and fees.

The vanguard never levied a poll tax, only the fixed harvest of the first three years of the land was to be purchased at a low price, and it was all profitable.

In two years, even the fake news has disappeared, but the actual situation is different, and the news has not disappeared, but has spread more and more.

Many people are yearning to live in Youzhou, and the number of merchants has continued to grow this year.