These Tibetan cavalry slaughtering villages has become a habit, and the surrounding Tubo cavalry knew what he was thinking as soon as he heard the routine of deviant questioning, and at this moment they pulled out their scimitars together, and no matter whether the officials in this post station were Tubo or Han, they all used scimitars to put down, and finally set a fire to burn the entire post station to the ground. Lai Lixu looked at the smoke billowing and said gloomily: "All the post stations and villages along the way, all set fire to them, so as not to cheapen the Han people." ”

In a valley about ten miles away from the post station, the flowing water is murmuring, the summer grass is luxuriant, it is the place where the Tubo Bahai Department grazes, the head of the Tubo Bahai Mu Zhi stares at the billowing smoke not far away, his face is shocked, in the past few months, the Tubo cavalry has suffered a big loss in the area of Rouge Mountain, and the situation of being beaten by the Han people to be unable to raise their heads is all known to this person, looking at this situation, I am afraid that the Han people have attacked Liangzhou, and are burning and looting.

"Father, what should we do, do you want to help Jiedu envoy to attack those Han Chinese?" asked his son, Bahai Moyang, with a scimitar in his hand.

"Confused, this Han soldier is menacing, and the festival makes the lord invincible, what can we do?" he sighed, "We came down from the plateau, since we can't stay here, we will go back to the plateau, pass on my order, and the whole tribe will migrate to Qingtang City in Miaochuan and join Lord Wen." ”

The discipline of the Tibetan army has always been extremely poor, and with the increasing number of Tubo cavalry who fled by the Lanzhou hussars, the smoke of burning cottages rose everywhere on the land of Liangzhou, and the people who fled with their burdens were everywhere. When the white-haired Tan Qingchi was taken out of the old house by his two sons and thrown on the cart, he suddenly shouted "not good", and out of nowhere he gave birth to a strong force, pushed his son away, ran into the room, groped under the kang mat for a long time, and finally trembled and carried a few house deeds and land deeds into his arms.

The eldest son Tan Deliang saw that he ran into the room just for these few pieces of paper, and couldn't help complaining: "Dad, Dad, if it's real money, it's just a matter of delaying life for these few pieces of broken paper." Let the Tubo people who set fire everywhere and lose their lives, then it is not worth it. Tan Qingchi was satisfied with the deeds in his arms, and when he saw the uncertain look on his son's face, he couldn't help scolding: "You Laozi and I are tired and tired to buy the land, and when we get old, we will only finish paying off the Yinzi money of the Zheng family's money in the village, and it is not the family business saved by these few things that you are not angry." ”

The eldest son Tan Deliang still buried his head and didn't speak, and the younger son Tan Deyu complained with a bitter face: "Dad, you don't look at the big seal of the Tubo official on the land deed, do the new adults know it? "I almost didn't make Old Man Tan angry. The family yelled at each other and fled to the nearby Yellow Mountains.

Pu Hangu, the captain of the high-hoof battalion, has been galloping his horse to chase the Tubo people who have fled from the desert, but it is difficult to catch up because they are running too fast. Along the way, she met many fleeing villagers and deserted villages, and Pu Hangu couldn't help but rejoice in her heart, after this battle, she should have a few more shaded households. Not only that, but the income handed over by the centurion under his hand should also rise by a few percent. He was happy and naturally energetic, except for stopping in the middle to feed and drink the war horse a few times, and kept urging the horse forward, and before he knew it, he had actually galloped through the valley area with peaks and obstacles on both sides. The fortress in the lower reaches of the valley, there are not many Tubo soldiers in Guzang Fort, at noon I heard that the army is coming, and in the afternoon I saw the cavalry of the Han army near the fortress, and there is smoke billowing from burning the village community everywhere, and there is a sound of wind, these soldiers only hate the scout cavalry who did not report the military situation earlier and fled backwards together, closed the fortress portal during the day, and at night, the commander of the army took his subordinates to abandon the castle and fled to the border wall of Liangzhou.

In the evening, on the west side of the high-hoof camp drinking horse valley water, the periphery of Liangzhou has been far away. Liangzhou is an important town at the eastern end of the Hexi Corridor, known as "the first line in the desert, the throat of the five counties". Therefore, before Wu Yingying and others attacked Ganzhou, they had already made a strategic plan to capture Liangzhou as quickly as possible, including the entire Hexi Corridor. In the bag of Pu Hangu, the captain of the high-hoof battalion who served as the vanguard reconnaissance cavalry, there was the topography of Liangzhou City and the distribution of the garrison of Tubo Town.

From Guzang to the north of Gushui, there are two side walls on the road leading to Liangzhou City to the south. The side walls and fortresses built here were originally guarded by the former Tang Shuo army against the Tubo people who pounced down from the Qinghai-Tibet Plateau, so they were all southward. Liangzhou is backed by a huge lake Xiu Tu Ze, is a land of abundant water and grass suitable for agriculture and pasture, was originally the territory of the Xiongnu Xiu Tu King in the Han Dynasty, since the Han and Tang Dynasties obtained Hexi, the Han people cultivated thousands of hectares of fertile land, living and multiplying. After the Tubo people entered the Kou and occupied Hexi, they took all these honest Han farmers into slavery, also known as Lang Sheng, and every time they reported to the imperial court the Hexi household registration, they did not count all the hundreds of thousands of Han people, and only said that there were only 300 Han people in Liangzhou. One of the main goals of Wu Yingying's determination to attack Liangzhou was also to obtain these Han households and balance the increasing Hu Qi in the Hexi Corridor.

Although the Tubo people did not completely live in tents like the Mobei grassland tribes, they advocated attack, and even if they defended, most of them did not rely on the defense of the linear city wall, so on the side walls that the Tang Dynasty spent huge manpower and material resources to build, only some Han troops and old and weak Tubo soldiers were placed to defend, so as to consume the spirit of the siege army. The real Tibetan elite gathered in the city of Liangzhou, the water and grass on the banks of Hutu Ze were abundant, and the Hexi army made the Zhe Ge branch raise troops and release horses there. The north of Liangzhou city is close to the vast Hanhai, and the south is protected by a side wall, and the enemy army in the north is coming across the long desert Gobi, or from the Hexi Corridor to break through the side walls of the fortress, they must be tired.

Facing the towering side wall, all the sergeants of the High Hoof Battalion looked at Pu Hangu, waiting for him to make a decision. Siege is the specialty of the infantry army, but at the moment these two side walls look extremely empty of troops, if the enemy is allowed to report back the military situation like this, the Tibetan leader will add troops to defend it, and it will take time to conquer it. Pu Hangu stared at the enemy soldiers who were probing their brains behind the battlements and muttered for a moment, and ordered: "Since the Tang Dynasty, this wall in Liangzhou and Tubo has not paid much attention to it, and it has rarely been repaired. Wang Li took two hundred-man teams to stay here and wait for the army, and I took the others to the east bank of the valley, walked along the two side walls, first looked at the reality and then said, if it really didn't work, I went around, and first scared and frightened these pawns guarding the side wall. ”