The Uighurs and the Tibetan border are bordered by a vast area, from the west to the west of Qiuci with the Tianshan Mountains as the boundary, the Uighurs are connected to the Tubo and Qarluq sides, and in the middle of the east there are the Anxi Metropolitan Protectorate and the newly recovered Beiting Metropolitan Protectorate as a buffer, and then to Yizhou and then restore the connection with the Tibetans, and then to the west the Tibetan occupy the Hexi Corridor, and the Uighurs control the north of the Hexi Corridor, until the Shuofang Jiedu envoy of the Tang Dynasty and the Lingzhou generation.

Therefore, Jieyugas wanted to attack Tibet in two directions, one was to turn back to the west and go to Qiuzi to attack Tubo and Qarlu, and the other was to continue along the current road to the east and attack Guazhou and Shazhou in the southwest of Yizhou; From Yizhou to the west, you have to travel along the foothills of the Tianshan Mountains, the road is complicated and the distance is very long, so Jieyugas can only choose to go east.

This was also in line with the wishes of Yang Xigu and Shen Long, the farther east they went, the closer they got to the Tang Dynasty, which was extremely powerful for them, so after resting in Yizhou, the Tang and Uighur coalition forces continued to march southeast, approaching the city of Shazhou.

Shazhou is close to today's Dunhuang, and there are Dajingze and Ganquan water as water sources nearby, which is one of the few places in the sand sea that can feed people, so it has become a key node of the Hexi Corridor, but anyone who wants to enter the Western Regions from the Tang Dynasty must pass through Shazhou.

On the way from Yizhou to Shazhou, there are mostly desert Gobi, and there is also the Mohe Yanmoi known as 800 miles of Hanhai in the middle, this place is 800 miles long, it is called Shahe River in ancient times, there are no flying birds, no beasts under it, and there is no water and grass again, which is very unsuitable for large-scale marching.

Therefore, Jieyugas and Shen Long had to reduce the number of troops, leaving some of the men and horses in Yizhou and Tingzhou for a generation, and only brought elite men and horses to Shazhou, Shen Long brought two thousand Tang elites, and then asked Lu Chaoran to select some elite cavalry from the Shatuo Turks, and then added Kang Guangde and these miscellaneous hus, a total of more than 6,000 people.

And Jieyugas brought more than 10,000 people, and the two sides combined were close to 20,000 people, this number may not be anything in the territory of the Tang Dynasty, but in the generation of the Hexi Corridor in the Western Regions, it can definitely be regarded as a heavy army, and the defenders of the generation of Tubo in Shazhou and Guazhou do not have this number, after all, the sweet spring water of Shazhou and the dark water of Guazhou alone can not support so many people.

Even so, the supply of grain and grass for more than 20,000 horses was a huge test for the logistics of the coalition army, and if it were not for Shen Long's great harvest in the fields of the six cities of Kuliu, and the fact that the Uighurs had plundered a lot from the small tribes in the Western Regions, they would not have been able to supply so many troops.

During the march, Jieyugas also wanted to create some trouble for the Tang Dynasty and let Shen Long explore the way ahead, he hoped that the eight hundred miles of Hanhai could create some trouble for the Tang army to weaken the strength of the Tang army.

However, Shen Long disappointed him again, ordinary people may still get lost in this eight hundred miles of Han Sea, but for Shen Long, there is no such problem at all, there are eagle birds in the sky that can help him see the road clearly, magic and Ah Xing's perspective ability can help him find the hidden water source, in addition, Shen Long also hides advanced equipment such as a compass, and there are many white-haired veterans who have walked through Hexi Road with the army, how can they turn their heads in this little thing?

Shen Long almost took the entire army out of the 800-mile Hanhai smoothly, but it was Jieyugas in the rear, he had been following Shen Long without getting lost, but many of his soldiers had not walked this road, and they were not adapted to the local climate, some did not pay attention to controlling drinking water, drank all their water early and then died of thirst, and some broke away from the large army without paying attention, and became a dry corpse in the desert alone......

In the end, a statistic came out that Jieyugas's side had lost hundreds of people, which made him depressed; After leaving the Hanhai, the army camped by the Ganquan water, which was in the summer, and the melting snow water from the Daxue Mountains flowed into the Ganquan water, which made the water flow of the whole river a lot more abundant, and the soldiers could finally let go of drinking water.

The Tibetan sentinels discovered their traces, and they did not hide in the city to defend them, but took advantage of the fact that they were tired from the march and had not yet gained a firm foothold.

Jieyugas was not surprised, let the Uighur army attack the city, they are not used to it, but it is easier to fight outside the city, so Jieyugas immediately commanded everyone to prepare for the battle, "Dadu Hu, before the Tang Dynasty charged ahead, now it's time for my Uighur sons to go into battle!" It's good to look at most of them! ”

He was also afraid that Yang Zhengu would continue to steal merit, so he hurriedly blocked Yang Zhengu with words, Yang Zhengu naturally would not refuse, when the Tang Dynasty was prosperous, when the Beiting Protectorate and Anxi Protectorate went on the expedition, wasn't the servant army the vanguard first? Jie Yugas reminded him of the years back then.

"Yuan Zheng might as well take a closer look, so that he can familiarize himself with the tactics of the next Uighurs!" Yang Zhenggu reminded Shen Long, don't look at the Uighurs and the Tang Dynasty as an alliance now, maybe they will have to do it in the future, you have to have this consciousness in the Western Regions, anyone can become your enemy, and anyone can join forces with you to attack others, isn't this the case with the Shatuo people?

"The last general understands!" Shen Long looked over and saw that Jieyugas had placed a small number of ironclad cavalry in the middle army, first harassing the Tubo army with flank cavalry, and trying to wait for the enemy's formation to be chaotic before using ironclad cavalry to win a decisive victory.

"The prime minister is in a hurry, now that our army has just come out of the Hanhai Sea, and he is tired, he should first exhaust the strength of the Tubo people, and it is not appropriate to rush to attack." After looking at it for a while, Shen Long felt that there was something wrong with Jieyugas's strategy, the strength of the Tubo and Uighurs was similar, but the Tubo people had been living in Shazhou before, but the Uighur army had just come out of Hanhai, and they were in a hurry to meet the enemy, which was a physical disadvantage.

If it is replaced by Shen Long, he will definitely set up a camp first and wait for the Tubo people to attack, if they don't attack, we will rest well and wait for their physical strength to recover, and if they attack, they will use the camp to consume their physical strength, and they will never directly start a war with the enemy army under such an unfavorable situation.

Things went in the direction that Shen Long had expected, and the Uighur cavalry, which had been windy in the past, was now much slower, and not only did not destroy the formation of the Tibetan army, but was beaten by the Tibetans to their own formation, and harassed them; Jieyugas hurriedly sent ironclad cavalry to charge into battle, but these ironclad cavalry were exhausted, and they could still rush at speed, for the cavalry, there was no impact without speed, and they accidentally fell into the encirclement of the Tubo.

"In this way, it still depends on my Datang!" The other party is a friendly army, so it can't be saved, and these iron armors fall into the hands of the Tubo people, which is not a good thing for the Tang army.

Shen Long immediately ordered someone to wave the flag, and Kang Guangde and Lu Chaoran were immediately ready to attack.

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