They didn't solve the problem from the core, so as soon as Datang began to decline, these places immediately began to defect.

However, Huo Gang didn't admit that Li Shimin was really not useless as some people in later generations said.

rushed to this decisiveness, especially now when Datang was still in the famine, he dared to directly send troops to attack the entire Tuyuhun, and this vision was not simple. Isn't the reason obvious? Xue Yantuo's troops threw themselves into it, which meant that the north of Liangzhou was his own territory.

If Tuyuhun also surrenders himself, or is taken by himself, then it means that Liangzhou will be replaced by a narrow corridor, and the north and south are his Huo Gang's territory, and it will not be too simple for him to take Liangzhou at that time.

This is also the reason why once the Tubo in the middle and late Tang Dynasty was unhappy, they dared to attack directly to the north, because you are on the Tuyuhun is the territory of Tubo, and the Tang Guanzhong and Anxi Protectorate almost rely on the Hexi Corridor to connect, once Tubo cuts off the connection between the Anxi Protectorate and the Tang Dynasty, the military operations between them cannot be highly unified at all.

Therefore, the Tang Dynasty almost does not have a very good way to deal with Tibet, of course, it is also because it is really difficult for the Tang people to go to the plateau.

"To be honest, we took Tuyuhun to guard against the big man." Li Shimin calmly said the original purpose.

"Understandable." Huo Gang nodded with a slight smile and said, "After all, if Xue Yantuo and Tuyuhun are in the hands of the Great Han, the Hexi Corridor can be cut off at any time, and if the River System Corridor is cut off, the entire core areas such as the Guannei Dao of the Tang Dynasty will face the attack of the Great Han, and this kind of defense is normal." ”

Huo Gang said this with a smile, Li Ji and Du Ruhui next to him really admired Huo Gang now, they felt for the first time that there were still people in this world who had the same talent and mind as Li Shimin, and even Huo Gang's talent was more outstanding than Li Shimin, at least many of Huo Gang's policies, they couldn't think of it.

"So since I'm going to cooperate with the leader, why don't we have half of Tuyuhun's territory?" Li Shimin said.

"There's no need." Huo Gang directly shook his head and refused, "Your Majesty, if you look at that map, you will find that in the boundary I draw, the Tuyuhun territory was originally reserved for the Tang Dynasty, because it happens that the Qilian Mountains are connected to the Kunlun Mountains to the west, and to the west are the Himalayas, which are the highest mountains in the world, and with that arc all the way to the south." ”

"It just so happens that this can be regarded as our natural boundary, so as not to have so many disputes in later generations, as for to the north, there happens to be a river there, the Jianhe, which flows all the way into the Arctic Ocean. We can just use that as a boundary. Huo Gang said casually.

"Moreover, it is also a good thing that Datang took Tuyuhun, we can open up several new routes from this direction, if I am not mistaken, there are many salt lakes in Tuyuhun's territory, and these salt lakes can be used for the manufacture of salt." Huo Gang said with a smile.

Li Shimin looked at Huo Gang seriously, and from Huo Gang's tone, Li Shimin could see that Huo Gang really didn't care.

"Chief, what do you want, since we are cooperating, then we must be a win-win situation. Since my arrival, we Datang have received a lot of benefits, what does Leader Huo lack now? Steel? We can provide any supplies. Li Shimin said seriously.

He knew very well that although it seemed that Datang was very strong, in fact, his own family knew his own business, and the entire Datang was actually very weak now, and attacking Tuyuhun could be said to be the limit of Datang.

And Li Shimin also knows very well that Huo Gang has shown that he is already very sincere, and even many words can be said to be heartfelt, but even the establishment of such a fraternal country and the establishment of such an alliance must be mutual, and the two countries must have places where they need each other, so that they can last for a long time.

But at present, Datang is more abundant than Huo Gang for Huo Gang. And really good things, such as glass like this, they don't have in Datang.

"No, if you want steel, I can provide you with steel if you Datang want it next year." Huo Gang said lightly, he is not afraid of selling steel now. Because Huo Gang had already sent people to look for sulfur and saltpeter mines, these two minerals were still very abundant in Hami and later in Xinjiang.

"Huh?" Li Shimin, Du Ruhui and Li Ji were obviously stunned for a moment, stainless steel can be said to be something that Li Shimin had been controlling and selling to the Han before, but now Li Shimin suddenly found out...... The so-called strategic material that he has always attached importance to...... People don't care at all, not only don't they care, but they want to sell it to them!

This...... Li Shimin didn't know what to say for a while.

"That'...... Do you want food? Li Shimin endured the shock in his heart and asked again.

"No, we have already passed the initial problem of the food problem, and probably next year we will have a surplus of food." Huo Gang also smiled and shook his head, in terms of food, Huo Gang was really open just now.

After the potatoes harvested this year are preserved, the potatoes planted next year alone will be enough to eat almost everyone in the entire territory for a year, not to mention, the amount of land that can be planted next year with the wheat harvested this year is enough for everyone in the entire Han Dynasty to eat for several years.

In other words, the land to be harvested next year will be enough for the entire Han Dynasty to not lack grain for several years, and the output of such grain will increase every year here. In fact, after the first few years, Datang will not be short of food in the future.

After all, there has always been a lot of land in Datang now, but due to years of civil strife, the number of registered people in Datang is only 3 million, and of course there are many people who are actually hiding to avoid the war.

According to the records of later generations, only seven or eight years later, the registered population of the Tang Dynasty has exceeded 11 million households. Naturally, it is impossible for all of them to increase the population, and there must be many people who have been re-registered with the stability of the Tang Dynasty.

But the land of the Tang Dynasty must have a surplus population, which is why in the last years of Zhenguan, the price of grain in the Tang Dynasty during the Gaozong period fell all the way, and the price of salt also fell very sharply, in fact, the salt of the Tang Dynasty in this period has not yet begun to be taxed by the government.

Therefore, when Huo Gang said this, Li Shimin and they were completely speechless, because if Huo Gang didn't need the most important grain steel, then they really didn't know what advantages Datang had.

"In this case, Chief, you directly state your conditions." Li Shimin thought about it, and simply let Huo Gang speak by himself.

"In that case, I want trona ore and a lot of eucommia gum." Huo Gang said.

"Trona? Eucommia gum? In what place? Li Shimin was stunned for a moment, he knew Eucommia, but what is trona?

"The trona mine is located at the bottom of the Nanyang basin near Nanyang City, South Datang Road, and there should be a place called Wucheng nearby, I will provide you with relevant ores, and you can look for them locally." Huo Gang said seriously.

The most important three acids and two alkalis in the industry, the alkali is very important, but it is difficult for Huo Gang to make it now, whether it is the Hou's alkali method or others, the manufacture of ammonia is actually a little difficult.

It's not that it can't be manufactured, but the cost of making it is very difficult, in terms of cost, it is better to directly find trona ore and alkali lakes, such as Inner Mongolia in later generations There are many trona lakes.

"What does this do? Of course, if it's inconvenient to say it, you can not say it. Li Shimin asked with some curiosity, after all, they had never heard of this ore before.

"Making soap, that is, the same effect as the soap horn used for laundry, but the cleaning is cleaner, and if you want to eliminate the smell on the wool, soap is very important, so alkali ore is also very important."

"Wool products are about our people being able to survive further north, so trona is important. In addition to alkali ore, there are also natural alkali lakes, such as Jieli's territory, and the southwest plateau area after taking Tuyuhun, which I call the Qinghai-Tibet Plateau, where there are some small tribes, and there are many natural alkali lakes on it. ”

"However, the natural climate there is very harsh, and if you want to rule there for a long time, the soldiers sent from there must adapt to the environment of the plateau in advance." Huo Gang thought for a while and said.

"Are these two the only ones?" Li Shimin nodded.

"Secondly, Datang can grow cotton in Liangzhou and Guazhou, including where Tuyuhun is located, that is, white stacks, cotton is a very good warm species, whether it is warm in winter, or others, it also has a strategic impact on us."

"Other than that, I have a reluctant request." Huo Gang thought for a while and said.

"Chief, please speak."

"I want the population, of course, I don't need the Tang Dynasty to take the initiative to migrate the population over, I just need to take the initiative to publicize it in Guazhou, Liangzhou, and other places, as long as they take the initiative to be willing to migrate the population, I hope Your Majesty will not stop it." Huo Gang said.

"That's fine." Li Shimin agreed directly without thinking about it, because he knew very well that in this era, as long as they could survive, these people were almost unwilling to migrate.

So even if Huo Gang's continuous propaganda is actually limited in the number of people he can absorb, so it is naturally nothing to agree to this.

Du Ruhui and Li Ji did not object to this, because they could also think of this.

"Anything else?" Li Shimin looked at Huo Gang and continued to ask.

It's not that Li Shimin is generous, but relative to the benefits that Datang gets...... Huo Gang asked for too few things, too little. Especially when Huo Gang said that even steel could be sold to Datang, then Huo Gang really wanted too few things, and Li Shimin knew very well that only when there were enough benefits, the alliance between them would be more effective.

Even if he signed an alliance with Huo Gang, if the connection between the two sides was not enough, there would inevitably be twists and turns in the future.