In February of the 9th year of Tianbao (750) (Note 1), the Tocharian Yehu (king) lost the Ligara, and the fast horse was sent to the Anxi Imperial Palace, stating that the king of the Shushi Kingdom was personally attached to Tibet, and the communication between Xiaobolu, which had just been connected, was cut off.

When Gao Xianzhi withdrew his troops from Xiao Bolu, he made a detour to Tocharo (Tocharian is in the west of Xiao Bolu), and ordered Tocharo to send 5,000 troops to station at the border of Xiao Bolu to prevent Xiao Bolu from being coerced by Tubo to turn his back on the Tang Dynasty again.

Tocharian stationed in the town of Little Bolu is blocked by the food route, and I am afraid that it will not be able to hold it for a long time. So he asked the Tang Dynasty Anxi to escort the troops to help and break the Shushi country.

Fu Meng Lingjing has returned to the imperial court to take up a new post, and Gao Xianzhi, who has just taken up the post of envoy of the Anxi Festival, was furious, and urgently ordered the post guard to report to the Tang Dynasty court.

On the other hand, the army is ready to go, and the generals are gathered to discuss the strategy of breaking the country.

This expedition to the Shushi country is farther than Xiao Bolu, and the Shushi country is also stronger than Xiao Bolu, so the soldiers and horses required will also be more, and the baggage and grain will also need more, and He Jingzhi and other deputy generals also participated in the discussion of the army and the enemy's strategy.

Cen participated in Duan Xiushi's speeches one after another, but he still used long-distance attacks and surprise the enemy as the keynote.

However, due to the long distance and the lack of detailed geographical maps of the Shushi Kingdom, while waiting for the imperial court's instructions, he sent spies to the Shushi Kingdom to secretly draw a topographic map and ask Tocharian for relevant information about the human geography of the Shushi Kingdom.

More than a month later, the waiting imperial order finally arrived, and Gao Xianzhi ordered the army to start immediately.

After Feng Changqing and Zhao Chongwei stayed, Gao Xianzhi personally led 15,000 Anxi habitual combat elite soldiers, first to Xiao Bolu.

Since Xiao Bolu has been attached to the Tang Dynasty, there is no need to twist and turn to bully the enemy, and there is no need to go through Tanju Ridge, but to take the easy road, from Yakang Han Road, Rustou City and Feng'an Duo City, and then pass through Ah Xuan Yue City to Xiao Bolu City.

In the ninth year of Tianbao (750), he departed in late March and arrived at the city of Xiaobolu at the end of May.

After the Tang army arrived at the city of Xiaobolu, it arrived at Dabolu in mid-July, preparing to attack the state of Shushi through Dabolu.

Both the Great Bolu and the Shushi State were vassals of Tubo, but at present, the Tubo State was paying close attention to the dispute between the Tang Dynasty and Nanzhao, and all the troops were transferred to the southern border of Tubo, preparing to assist Nanzhao, and there was no time to look westward.

Da Bolu had no choice but to borrow the road with the Tang army, and sent troops to strictly guard the city, so as not to use the Tang army's false plan to destroy the city.

As a result, Gao Xianzhi and the other Tang troops could not enter the city, and the army had to sleep in the open air.

The Tang army repaired in Dabolu for several months, and the king and the generals of Dabolu waited for months in their hearts, and from time to time they had to send people and officials to the army and labor to provide food for the Tang army.

On the one hand, Gao Xianzhi rested the Anxi generals who had been marching for a long time and gathered the generals to discuss the strategy of the conquest, and on the other hand, he was waiting for the spies to return and close contact with the Tocharian side to make an appointment to attack the Shu Division.

After waiting for everything to be arranged, Gao Xianzhi summoned the generals into the military tent to issue general orders, and the generals received the orders to proceed separately.

Because the terrain of the mountains and rivers of the Shushi country is very different from that of Xiaobolu, it is a plan to repair the plank road and secretly cross the Chen Cang.

The soldiers and horses envoy Li Siye, the deputy general Li Yuanzhong, the right Modao general Jiang Qian and the secretary Duan Xiushi led 5,000 pioneers to disguise Hu soldiers, divided into three routes, set off first, take a hidden route, twists and turns, must not leak the news, be known by the division of the country, before the deadline to arrive at the pre-designated position, the military law will be punished.

The Anxi generals who set out first did not dismantle the camp tents, and did not even bury the earthen stoves where the pots were buried, which made Da Bolu mistakenly believe that the whole Anxi army was still stationed in the same place.

Ten days later, Gao Xianzhi led the Anxi army of 10,000 to set off with great fanfare.

There is a road to the west of Dabolu that can lead directly to the Shushi Kingdom, as long as you pass through the Daliluo River, you can directly enter the territory of the Shushi Kingdom, and once you cross the border, there is only fifty miles left from the capital of the Shushi Kingdom.

The soldiers and horses that marched first made Li Siye lead 2,000 soldiers and horses, and Jiang Qian, the general of the right Mo sword, and Li Yuanzhong, the deputy general, each led 1,500 soldiers and horses, and advanced in three ways.

Because Qiao disguised himself as a soldier and had few troops, he avoided Shangjia Avenue and took the sparsely populated trail, walked for more than half a month, and gathered three military horses twenty miles downstream of the Dali Luochuan ferry.

According to the geographical map sent back by the spies, there is a small hill called Chihuan Tu Mountain in the northeast of the city of Kalona, and the dense mountains and forests can hide tens of thousands of elite soldiers.

Li Siye, Duan Xiushi and others sent messengers to inform the Tocharian army in the north of the Shu Shi Kingdom to advance from the northwest to the south, and change back into the Tang army's uniform here, waiting for the arrival of the Anxi army.

The king of the kingdom of Shushi, Both, did not expect that there would be such a day since he began to intercept and kill the Tocharian grain and horse caravan.

Therefore, the army began to be reorganized very early, recruiting more than 50,000 soldiers, distributed in several castles in the north, because Tocharian is located in the northwest of the Shushi country, Bot did not order the troops to defend the northwest with all their might.

It was not until he received a notice from the secret envoy of the Great Bolu State that Gao Xianzhi of the Tang State led 15,000 Anxi troops to attack from the east through the Great Bolu State, and then hurriedly withdrew 30,000 troops to return to the city of Gerona.

The Tocharian kingdom is an ancient kingdom with a long history, known as the Great Xia Kingdom (Note 2), which reached its peak during the reign of King Dmitry I about 900 years ago, and owned most of Central Asia, but gradually weakened due to the division of the empire.

Currently one of the most powerful allies and vassals of the Tang Dynasty in Central Asia, the king had great ambitions to regain the power of his ancestors and recreate the territory of ancient Bactria through the Tang Dynasty.

Kabapani, the general of Tocharia, led 30,000 troops from the northwest to the south, and attacked the kingdom of Shushi.

In the city of Garona, Both had not long found out the news and was discussing with the generals how to defend against the enemy, and the generals were at a stalemate over whether to go out of the city to meet the enemy or to defend the city.

Busatu, the fierce general of the Shu Division, said loudly: "The Tang army is attacking from afar, working for thousands of miles, we are waiting for work, if we don't come forward to meet the attack, let them rest and recuperate, wouldn't it be a waste of God-given opportunity. ｣

Another general, Gu He, said clearly: "Tang Guoan's Western Army is elite and brave, and can often use one as ten, our strength is not more than double, the field battle is unfavorable, and the capital is difficult to protect, so it is better to defend it with danger, which is the best policy." ｣

Busatu sneered, "If you don't fight when you meet the enemy, it's cowardice! If Gu Heming is greedy for life and afraid of death, afraid of the Tang army, it is okay to hide in the city, but I am not afraid of the Tang army. Everyone has blown the Tang Army into the sky, and I want to see if the Tang Army generals can defeat my treasure sword. ｣