After accepting the book from the princess of the Fan Kingdom in Guanglufang, Li Tong also took the time to focus on the specific location and scope of the so-called Eastern Regions of the Fan Kingdom.

Speaking of Datang's understanding and record of the Zhou border region, even Li Tong, a person from later generations, had to praise it, which was really informative.

The openness and inclusiveness of Datang is not only fully represented by the camel caravans and the orchids who sell wine in the two cities.

Whenever a guest comes from afar, if you need an official reception, the first thing you care about is not what kind of things they are carrying, but where their country is located, what their customs and population are, and how far away they are from the Tang Dynasty. In this kind of situation, officials are responsible for recording all cases, and the contents of the records are summarized and organized, and properly stored.

Not only the official attitude, but also the people are full of curiosity about the unknown areas around them, and they are not blindly wary of and reject foreign things, but actively understand and selectively accept them.

This curiosity about the unknown is quite rare in the regime of an agrarian civilization. If the Han and Tang dynasties were opening up, then the Sui and Tang dynasties became the center of the entire world in the Middle Ages through this strong self-confidence.

However, after the end of the Middle Ages, this kind of external exploration and exploration of unknown areas has turned into a restrained attitude, and curiosity and enterprising are no longer there. Until the end of the feudal era, it was more completely ossified into a kind of arrogance, and it had lost its knowledge of the whole world and its accurate evaluation of itself.

For a detailed understanding of the Eastern Regions of the Fan Kingdom, the materials collected by Li Tong are not the records of this dynasty, but some pictures of the former Sui Dynasty. In the early days of the dynasty, the focus was on conquering the Turks and Goguryeo, but with the rise of Tubo and the annexation of Tuyuhun, which became a serious border trouble, the focus of attention was mainly concentrated in the areas directly bordering the Tibetan forces, such as Longyou and the northwest of Shuzhong.

In this area of eastern Sichuan and Tibet, there are a large number of Shengqiang tribes living together, the situation is chaotic, and the interaction with the Tang Dynasty officials is not close, so there are not many new records.

However, at the time of the former Sui Dynasty, the long-term turmoil of the Northern and Southern Dynasties was ended, and the empire of the Central Plains Dynasty was recreated, with the majestic momentum of all countries coming to the dynasty, and the situation of Hu Qing recorded should be more detailed and rich.

By flipping through these old books, Li Tong also learned that in the area of the princess of the Fan Kingdom, there were still more than a dozen states of all sizes in the Sui Dynasty, such as the vassal state, the Dongnu country, etc., all of which had records of paying tribute to the Sui Dynasty.

After learning this, Li Tong couldn't help but sigh that although it has been nearly a hundred years since the founding of this dynasty, there is still a big gap compared with the strongest period of the Sui Dynasty. This is not to say that the previous emperors were not capable, the key is that since the founding of the Tang Dynasty, there has been little time for long-term recuperation.

During the Wude period, it was still a chaotic era at the end of the Sui Dynasty, and the world's heroes competed for hegemony endlessly, and the Sui Dynasty's accumulated reserves were almost exhausted in this chaotic war. In the early years of Zhenguan, the fierce Khan of the Eastern Turks Jieli entered the pass, forcing Emperor Taizong to sign an alliance under the city.

Just a few years later, the national strength of the Tang Dynasty recovered slightly, and it set off a great war to destroy the Eastern Turks, followed by Xue Yantuo, the Western Regions States, Goguryeo, etc., almost without a war.

Emperor Qin has six generations of Yu Lie, Han Wu has the rule of Wenjing, and even Emperor Yang of Sui has a reserve of opening the emperor, and Li Shimin, Taizong of the Tang Dynasty, in addition to a broken world at the end of the Sui Dynasty, only bears the original sin of the Xuanwumen Incident, and finally created the great cause of the Tang Dynasty!

Later generations often used some relatively simple indicators such as household registration and tribute to argue that the rule of Zhenguan was a false prosperity in a partial and comprehensive way, and it was not worthy of the lofty evaluation in the historical books, which was really the bastard's statement.

During the Zhenguan period, the people's livelihood was indeed not as good as some of the periods of full recuperation, but this is not a reason to belittle the rule of Zhenguan, Tang Taizong's martial arts are indeed the best among the emperors, and the Ming Jun among the Ming monarchs. It is far from being something that Emperor Yang of Sui, who is more ambitious and shorter than the actual monarch of the dead country, can touch porcelain.

After learning about the situation in the Eastern Regions of the Fan Kingdom, Li Tong also understood why the princess of the Fan Kingdom was so magnificent, and donated all her titles after only a few short encounters.

On the contrary, if Xingtai wants to use this situation to impose constraints and disturbances on the Tubo mainland, it is also necessary to increase the support for this princess of the Tibetan country in terms of government decrees and personal status treatment.

Of course, this is not an unacceptable problem for Li Tong, since he decided to accept this princess of the Fan Kingdom, he already has plans to treat her with courtesy, and make him an example of the leader of Zhufan.

So, a few days later, Li Tong sent people into the workshop and invited the princess of the Fan Kingdom to Taichung in the imperial city, to formally discuss the issue of her fiefdom management with her.

Finally able to officially go to Xingtai to state his plan, Ye Ali was also very happy in his heart, and soon entered the imperial city under the guidance of the envoy.

The imperial city is located in the political hall of Menxia Province, and in addition to King Yong, there are several other people in the hall waiting for the arrival of this princess.

One of them is the former prime minister Lu Yuanfang, and then Li Tong plans to send Lu Yuanfang to Yizhou to serve as the governor of the capital. As for Li Guangshun, the king of the Han Dynasty, he had family problems, and he didn't want to go far away in Shuzhong, so he stayed in Beijing for a long time to help Yang Zaisi, the priest of Xijing Guozi, prepare for the selection of the stage.

Ye Ali went out this time, because he had to talk about business, so he was dressed in a neutral lapel dress, and he had a heroic temperament. Although she is a woman, it does not contradict the overall atmosphere of the hall.

When they met each other and exchanged pleasantries, Li Tong asked directly: "The Kingdom of Fan has granted the Eastern Regions to the princess, and the princess can have some autonomy." If the state of Tibet is determined to take it back, what other formal means are there besides the sword soldiers? ”

When it came to the formal topic, Ye Ali's spirit was also lifted, and after hearing the words, he explained: "The decrees of the Tibetan Dynasty are different from those of the Tang Dynasty. Although the Tibetan people and the Tibetan land are all led by Zampu, the people of the territories shared by each family are also hereditary. Although it is a great crime of rebellion, Zampu cannot ask for it privately, but needs to gather the king's ministers and state lords to discuss the alliance oath, and then make an oath with the permission of the masses, only killing this family, not the rest. There is also a difference between the crime of rebellion and the killing of the chief evil or the extinction of the heir......"

Ye Ali explained in detail the tradition and form of the alliance in the Tibetan state, which also made Li Tong understand the Tibetan regime more thoroughly.

Previously, he felt that Tibet was a relatively single militaristic regime, but when he heard that the relationship between the monarch and the minister was such a model, he seemed to be more inclined to the feudal aristocratic association in the Spring and Autumn Period.

Although Zampu was supreme, he was not able to centralize his power, giving land and population to the nobles in exchange for their allegiance. In addition to hereditary fiefdoms, nobles also have different degrees of legal immunity according to their status, and even a major crime like rebellion, as long as they are strong enough, there is room for discussion.

Of course, the feudal system of the early Zhou Dynasty also had a set of etiquette as a constraint, although there was a collapse of etiquette and music, the princes fought for hegemony, and the Son of Heaven was coerced to respect himself, but Tubo was still different from it as a whole.

The aristocracy of Tibet is mainly military aristocracy, such as the Gar family, which has been in power for decades, although everyone in the country is disgusted from top to bottom, but there is nothing to be done. Although Ye Ali was born in an old clan, he was forced to have nowhere to live in the country.

Ye Ali told this, mainly to show that even if the Tubo royal family could not tolerate her, the territory she had given could not be easily recovered. Unless she has completely betrayed Zampu, or her actions have violated the overall interests of the Tibetan nobles, she and her descendants will be able to inherit the land of the Eastern Regions forever.

At present, although she surrendered the Eastern Regions version to King Yong, this does not belong to betraying Zampu, after all, when she entered the Tang Dynasty, King Zampu ordered her to make peace with the Tang Kingdom.

Of course, although Ye Ali introduced the tradition of the oath of Tubo very solemnly, Li Tong knew in his heart that the so-called rules were just a statement that each side made compromises when each other's strength was not enough to directly engulf the other. If you really have enough strength, you can have no scruples, who cares about that.

Ye Ali's fiefdom in the Eastern Regions was roughly Xikang Province during the later Republic of China, sandwiched between Sichuan and Tibet.

At present, the reason why Tibet has divided this territory to Ye Ali is also geographically because this land is located between the Hengduan Mountains, and it is difficult for Tibet to implement effective management.

Especially from the east of Kangyanchuan, the ditches and ridges are steep, the road is rugged, and even if the Tibetan garrison is there, it is only to collect some materials. Moreover, the local Tuqiang tribes are constantly in turmoil, and if you calculate carefully, the garrison plus the consumption of counterinsurgency is a little beyond your means.

Of course, this area is not without significance, it is located in the center of the Tang Dynasty trade road, and is an important channel for Tubo to communicate with foreign countries, especially the introduction of Tang materials. Controlling this place is equivalent to controlling the entire Ancient Tea Horse Road.

From the perspective of the military situation, if the Tang Dynasty can control the Eastern Regions, it can directly threaten the Weizang Siru in the heart of Tubo, and if it goes north, it can cut off the hometown of Bailanqiang through the Shengqiang territory, so as to attack Tuyuhun inside and outside. Going south can also radiate to the Nanzhao region, which is of great benefit to Shannan rule.

But these ideas only exist in theory. As early as the Yongchang period, Wei was defeated in the western expedition, and Wu Zetian had the idea of conquering the people of Shu to crusade against the Tuqiang in Shuzhong, so as to stop the fierce flames of Tubo. However, the advance and retreat of the army and the opening of mountain roads required a huge amount of investment, and after a long period of discussion, they could only give up in the end.

All in all, although the strategic value of this area is not small, the cost performance is too low. When Wei Gao, a famous general in the Tang Dynasty, spent his time in Shuzhong, although he broke through Tibet and made great contributions to western Sichuan, it was a helpless choice to retreat to the next best place when the important strategic place of Longyou was lost.

Now that the situation in Longyou is very good and the military affairs are overhauled, Li Tong is not in a hurry to open up a second battlefield in western Sichuan, and he is ready to profoundly affect the domestic situation in Tibet through some other means.

The two countries are at war, not necessarily only swords, now there is a queen mother above Tubo Zampu, and the frequent battles against Ding Nan have suffered great losses, plus the annexed Sun Bo is a feminist society with a long heritage, if you can train a group of boxers in Tubo, this is definitely a very happy thing.