Since Xue Yantuo's rebellion, the nine tribes of Tiele have acted in unison to cut off their tribute to the Eastern Turkic Luo Khan.

They also intercepted the merchant travelers from the Western Regions to the Mobei grassland, and escorted these merchants to Chang'an to trade with the Tang Dynasty.

Chuluo Khan suffered a series of defeats, and at this time, he cut off the source of a large number of economic materials, and his strength decreased significantly.

Repeated attempts at Datang ended in failure. At the beginning, he insisted on going south and moved the Han court from Jinshan to Yinshan, vowing to help Princess Kedun Yicheng restore the Yang family's world.

At this time, it is obvious that he is unable to do it.

A string of defeats plunged him into an endless state of melancholy. Every night, he kept thinking, why did Datang develop so rapidly?

In just three or four years, Li Yuan is about to occupy most of the world in the Central Plains. Is he blessed by heaven? Does he have the god of war to help? Why did he become as hard to shake as a mountain? Why are people's hearts drawn to him? ……

Chu Luo Khan was puzzled.

On the other hand, headaches have been a frequent infestation lately. The princes of his subordinates gradually became contemptuous, the Tiele tribes openly rebelled, and the Western Turkic commander Ye Hu often met each other for the trade of the Western Regions, and what was even more fatal was that in recent years, Mobei had continuous natural disasters......

The Khan's mood became heavier and heavier, and in order to relieve his worries, he had to numb himself with spirits.

As a result, he often fell asleep, so much so that many of the official duties on the grassland were handled by Kedun for him.

Recently, as winter has begun, strong cold air from the North Sea (in this case, Lake Baikal) is roaring. When Luo Khan went out to inspect, he accidentally suffered a stroke.

Since then, he has been unable to afford to be in a bed. Soon after, he died in a hurry.

After the death of Chuluo Khan, the hearts of the people in Mobei fluctuated, and the tribes went their own way because of the leaderless dragons, and the originally powerful neighbors suddenly became scattered.

This is a good thing for the rising Tang Empire.

For the hero-worshipping tribes of the Turks, this state of affairs will not last long.

Kedun was the Yicheng princess of the former Sui Dynasty, who served two generations of khans, and her children are now grown.

Especially the prince Ashina Sheer, who was born wise and brave, has already led more than 10,000 people at a young age. It's just that he is still young and can't convince the public.

Kedun then feasted the Turkic princes and nobles, and proposed Jieli as the new khan.

He was brave and resourceful, and he had a lot of prestige among the clan, so he didn't have many opponents.

After Jieli succeeded to the throne, he felt that the situation was in dire straits, and in the face of the scattered desert grasslands, he urgently needed to establish his authority in order to reunite the grassland tribes.

Unlike Chu Luo, at the beginning of his tenure, he first focused on internal rectification, rather than large-scale use of foreign troops.

Jieli is a generation of heroes, cunning and cunning, he knew that the Mobei grassland at this time was unable to attack the Tang Dynasty, but he did not give up the weakening of the Tang Dynasty.

Any opponent of the Tang Dynasty, he will take advantage of it. Shuofang Liang Shidu and Ulzhou Gao Kaidao have been co-opted by him. Tuyuhun in Hexi also formed an alliance with it.

As for Li Yuan's ally, the Western Turkic Emperor Yehu Khan, he resorted to assassination. Although he failed to succeed several times, he vowed not to give up.

Jieli even sent secret envoys to instigate Li Yi, Xu Yuanlang, Li Fuwei and others......

Dou Jiande had formed an alliance with Jieli Khan at this time, he claimed to be a courtier of the Sui Dynasty, and was willing to respect Princess Yicheng as the master, because Princess Yicheng was the princess of the Sui Dynasty and the biological sister of the deceased Emperor Yang Guang of the Sui Dynasty.

In order to show his sincerity, Dou Jiande beheaded the captured Sui Dynasty traitor Yu Wenhua and used his skull to make a wine vessel, ready to be sent to the Mobei grassland.

In addition, he escorted all the members of the Yang Sui clan who were coerced by Yu Wenhua and the rebel team to the Mobei grassland. In order to prevent accidents, Dou Jiande even dispatched more than 1,000 people from his own guard team to carry out this escort mission.

After Li Yuan learned the news, he felt inexplicable pressure, he knew that the Tang Dynasty had walked at a critical crossroads.

How to overcome difficulties is a special moment that tests the mind and spirit of a national master.

Shepherd, shepherd the world! If you want to wear a crown, you must bear its weight!