When Li Jiancheng heard that Du Ruhui was outside the hall, he immediately ordered Mingyu's father-in-law to summon him. When Du Ruhui came in, Li Jiancheng enthusiastically introduced Du Ruhui:

"It's obscure! This is the Lingguan Dao Chief, Dao Chief, Dao Chief, who worked with Xue Rengui, Su Dingfang, and Sun Yuce and others to help me directly insert a nail into the Bohai Kingdom, Dao Chief, this is Shang Shu's right servant Du Ruhui, my right-hand man! ”

"Ahh Poor road, see Lord Du! Du Ruhui returned the salute, but it could be seen that Du Ruhui was in a hurry.

"Ahh Your Majesty, there is still something to do in the poor road, so I won't bother here! ”

"Ahh Michigan please! "When the Lingguan Daoist is gone. Du Ruhui saluted Li Jiancheng and said:

"Your Majesty! The minister has just come from the military department! The situation on the west side is a little delicate! ……”

"Oh!" Du Ruhui took out two books from his arms.

"Your Majesty, please look!" Li Jiancheng opened the fold. Looking at the above content, the first book is the twist and turn of the Yizhou Thorn History - 'Chen Yuhang, the Thorn History of Yizhou, respectfully invites Sheng'an, recently, the Qiang people in the Tubo area and the border of Yizhou have ordinary business and trade exchanges. The ministers are afraid that Tibet will have some changes to our dynasty. ’

And the other book reads on it - 'Chen Mobei left behind in the mansion to stay in Li Ji See Your Majesty, recently, there have suddenly been many more Tubo merchants in the countries of the Western Regions, their whereabouts are secretive, and they enter and leave the royal courts of the Western Regions. The ministers are afraid that Tibet intends to have activities in the Western Regions, so please take precautions. After reading these two recitals, Li Jiancheng's brows tightened. Just a few months ago, Murong Shun, the head of the Tuyuhun state, had already reported to Li Jiancheng, saying that Tubo had repeatedly provoked Tuyuhun recently in the name of Tuyuhun instigating relations between the two countries in Li Jiancheng's ear. I hope Li Jiancheng can come forward to solve it. Li Jiancheng's brows kept furrowing. Tibetan. One of the reasons for Li Tang's weakness in later generations. During the Wu Zetian period, due to the fear that Li Tang's relatives and the ministers of civil and military affairs would boycott him, especially for the border generals who held military power in the court, they would be executed at any time, and the border generals would be executed, which led to the decline of Li Tang's military generals, and the literary style was prosperous. During the period of Xuanzong of the Tang Dynasty, he used troops against Tubo many times, and the Anshi Rebellion started, and Tubo took advantage of the situation to seize the right place of Li Tanglong. And after the Anshi Rebellion was pacified, since the Tang Dynasty, Tubo has been harassing the Li and Tang borders. It has invaded the vicinity of Chang'an several times. The people of Guanzhong suffered greatly. Qiang, the ancient ethnic name, is also known as Xiqiang. It is rumored that the ancestor of the Qiang people was the Yellow Emperor, and it is also said that it is the Yan Emperor. It was originally distributed in western China and was called "Qiang", "Xiqiang" and "Diqiang". It was first written in oracle bone inscriptions, meaning Western shepherds. In addition, according to the "Historical Records of the Five Emperors", it is recorded: "(The Yellow Emperor) is in Zhuoluzhi, migrating to and from impermanence, and taking the division and soldiers as the camp. This is a true portrayal of nomadic people living in impermanence and migrating for a living. At the end of the Shang Dynasty, he followed King Wu of Zhou to fight against Zhou. During the Qin and Han dynasties, there were many tribes, there were Xian Ling, Burn Dang, Bei Nan, Bei He, Wu Wan, Shen Wolf, Zhong, etc., and there were Baima Qiang, Yak Qiang (Yue Wangqiang) in the territory of Sichuan today. In the Eastern Han Dynasty, "Western Qiang" refers to a branch of the Qiang people who moved inwardly and settled in the counties of Longxi. Between the Wei, Jin, Southern and Northern Dynasties to the Tang and Song dynasties, there were Danchang, Deng Zhi, Bailan, and Dangxiang Zhuqiang. The residents are scattered, and most of them are migratory agriculture and animal husbandry. However, those who mixed with the Han people had gradually settled down in agriculture as early as the Warring States period and the Qin and Han dynasties. Most of the Qiang tribal leaders were canonized by previous dynasties. But also often repeated rebellions. The Later Qin regime was established during the period of the Sixteen Kingdoms of the North and South. During the Song Dynasty, Xiang Qiang established the Western Xia regime. In terms of blood, Tubo is very close to the Qiang people. These two ethnic groups have always been the inherent border troubles of the Central Plains. It was only during the Yuan and Qing dynasties that these two peoples officially entered the list of submissions. Now, Chen Yuhang and Li Ji have warned Li Jiancheng together, and Li Jiancheng has to pay attention to it.

"Ruhui, tell me what you think!"

"Your Majesty, the minister thinks! In the matter of Tuyuhun and Tubo, we can only mediate, not interfere! ”

"Oh! Why? Seeing Li Jiancheng's puzzled look, Du Ruhui continued to explain:

"Your Majesty, as the old saying goes, if you are not of my race, your heart will be different! Tuyuhun was born in Xianbei in Liaodong, and later migrated to the northwest during the Three Kingdoms. Back then, in the former Sui Dynasty, it was one of the border troubles! If it weren't for His Majesty's benevolence, Tuyuhun would have been wiped out long ago. Now, it just so happens that Tubo is attacking Tuyuhun and taking advantage of the situation to weaken Tuyuhun's strength, if Tuyuhun is not strong, he will ask us Li Tang to attach it, and after it is attached, His Majesty only needs to win over its upper echelons and give high-ranking officials and dignitaries, so as to show that I Li Tang Huai Rou is all over the world, and His Majesty is benevolent. And as for its subjects? Isn't it just a ready-made strong labor!? Looking at Du Ruhui's smug appearance, pinching his beard. Li Jiancheng asked again.

"What about Tibet? Also, if Tuyuhun is defeated by Tubo, then our Bashu and Longyou will be exposed in front of Tubo! If you are obscure, what is your plan!? ”

"Your Majesty, at the beginning, Tubo asked for marriage, but His Majesty did not promise, and now Tubo is using troops against Tuyuhun, which is obviously to deal with Tuyuhun, but in fact he is demonstrating to our court. According to Weichen, it is better to canonize the princess with the daughter of the clan, so that our Li Tang and Tubo will become good for Qin and Jin, so as not to raise swords and soldiers again. Li Jiancheng had no words, and his thoughts returned to the beginning, in the seventh year of Yongshuo, Tubo Zanpu Songtsan Gampo sent envoys to the court to hire, and took the opportunity to ask Li Jiancheng to marry Princess Li Tang. Seeing the marriage envoy of Tubo, Li Jiancheng was extremely disgusted in his heart - and relatives, a tradition left from the Western Han Dynasty, at the beginning, when Liu Bang, the ancestor of the Han Dynasty, marched into the Central Plains by the Xiongnu, he personally led hundreds of thousands of troops to meet the battle, if it were not for Liu Bang's light enemy and being tied up on Baishan Mountain, Liu Bang would not have thought of harmony. However, the Xiongnu did not take peace as a restraint, on the contrary, from time to time in the name of relatives, invaded the interior for extortion. Moreover, Li Jiancheng knows that Songtsen Gampo is definitely not a mediocre person. Originally, the Qinghai-Tibet Plateau was a barren land in a period of slash-and-burn farming. When Songtsen Gampo married Princess Wencheng, he asked Li Tang for a large number of books and craftsmen, and it was precisely because of the marriage of Princess Wencheng that the Qinghai-Tibet Plateau triggered a qualitative leap - Songtsen Gampo used the books brought from the Central Plains to completely improve the laws of Tibet and strengthen the centralization of the Tibetan royal family. With the help of craftsmen from the Central Plains, the weapons of Tibet were improved. Princess Wencheng said that it promoted the exchange between Li Tang and Tubo, and in Li Jiancheng's view, it actually left a great hidden danger for future generations. At that time, the civil official system of the entire imperial court tended to be friendly with Tubo, for the following reasons: first, the Turks, Hui, and Tuyuhun were all given princesses to marry, and the civil officials felt that it was nothing for Tubo to give a princess; Second, at that time, Li Jiancheng's mind was looking at Liaodong, and if he wanted to fight on two fronts, he was afraid that the imperial court would not be able to support it; Third, Li Jiancheng and the civil officials both knew in their hearts that every time a major war was fought, the military generals' exploits were greater than those of the civilian officials, and the rewards were more than those of the civilian officials, and the civil officials were jealous. Later generations always say that during the Song and Song dynasties, the emphasis was on literature and light on martial arts, in fact, which dynasty and which generation in China were incompatible with civil and military, literati could talk about it, and when they really went to the battlefield, their legs were weak, and once they saw the martial arts, they were immediately jealous. As long as the emperor slightly showed his precautions and dissatisfaction with the generals, then the military generals class would be suppressed immediately, and the generals at that time had only two ways out, one was to rebel in the capital in the name of the Qing monarch's side, and change the dynasty. Either they are tied up and waiting for the shameless invective of the literati and the verbal and written criticism of the historian after death. The final result was the decline of the entire Han nation's armed forces, the rise of alien races, and the entire Central Plains becoming a paradise for alien races. Li Jiancheng looked at Du Ruhui. Didn't speak. Du Ruhui saw Li Jiancheng and knew that Li Jiancheng did not agree with him very much. Immediately changed his words:

"Your Majesty, the minister thinks that the words of General Li Ji and Chen Tingshi are also very reasonable, the Tubo merchants who enter and leave the court of the thirty-six kings of the Western Regions, although they also have the intention of selling goods, but it is difficult to guarantee that there are some bad intentions! Please give an order to your Majesty to mobilize the army and strengthen the defense of Bashu and the Longyou Land leading to the Western Regions. It's just that this mobilization of soldiers and horses, the expenditure of money and food is a big problem! Everything is dictated by His Majesty! Li Jiancheng heard that when Du Ruhui said the strategy to guard against Tibet, his tone was obviously a little lacking. Listening to it, Du Ruhui still tends to be amicable - in fact, this is not to blame Du Ruhui, on the one hand, Du Ruhui has entered middle age, unlike when he was young. On the other hand, after Du Ruhui served as Shang Shu's servant, the aspects he considered were more comprehensive. Since ancient times, there have been soldiers and horses, and there are ten thousand taels of gold. Li Jiancheng looked at Du Ruhui, and a thought suddenly came to mind in his heart. Immediately said to Du Ruhui with a smile on his face:

"It's obscure! I understand what you mean, you immediately go back to the Ministry of War, let the Ministry of War send a document to Yizhou and Mobei, and let them take strict precautions, and I will let Di Qing also pay strict attention to the movements of Tubo. ”

"Yes!" Du Ruhui felt that Li Jiancheng was still inclined to fight, but Du Ruhui didn't say much and immediately kowtowed and went out. After Du Ruhui left, Li Jiancheng shouted to Mingyu's father-in-law:

"Mingyu, quickly pass the decree, let Li Chengdao, the king of Zhao, and Li Chenglu, the king of Wei (Li Jiancheng have meritorious service in cultivating the geography of Li Chenglu, and Li Chenglu is the king of Wei) will enter the palace immediately, and I have important matters to discuss with the two kings."

"Son-in-law Li Chengdao (Li Chenglu) see his father!" Li Jiancheng looked at his two sons:

"Chengdao, Chenglu! I encountered a problem today, and I couldn't think of a solution! Li Jiancheng said as he stroked his forehead. It seems to be very painful. Li Chengdao, King of Zhao, and Li Chenglu, King of Wei, immediately stepped forward:

"The son is willing to share the worries of his father!" Li Jiancheng handed a few books and a book on the table to Mingyu's father-in-law beside him:

"Chengdao, Chenglu, this is a twist from Mobei and Yizhou, and when Master Xuanzang just returned to Chang'an, he wrote the Tang Dynasty Western Regions Chronicle, which contains the resumes of the people you are going to deal with."