Because of the arrangement of this attack on Tibet, the commander Wei Xi ran in the forefront of the army like a vanguard, and Li Jinxing, the deputy commander of the Tang Army, was like a commander, commanding a large army to the rear, his troops were vast, with cavalry, infantry, engineers and civilians, the number reached as many as 320,000, and soon the Tubo people who surrendered, there were many people and horses, and the momentum was huge. Pen | fun | pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

Rushing the ass of the front army, he watched the front army go farther and farther, and finally he couldn't even see the shadow.

Fortunately, the cavalry was always smooth, and there was no trace of the defeat of a large Tang army on the road, so Li Jinxing was relieved, so he concentrated on the following things:

The former army did not have time to clean up the Tibetans;

His troops were getting smaller and smaller, setting up barracks and supply points along the way;

Do a great job, build roads!

It was mainly dirt roads, some of which were cement roads, and there were also cement bridges.

Why are there so many dirt roads?

Because the Tangbo Ancient Road has its innate advantages as follows:

1. The Qinghai-Tibet Plateau, where it is located, has a gentle terrain and is relatively easy to construct;

Speaking of the ancients are not stupid, in the plateau thousands of paths to find and out of the Tangbo ancient road, although the primitive uninhabited grassland, but the place is unusually flat, the height of the sea is very high, and the steep mountain shape is rare.

It can be summarized as: slowly ascending to the height, walking the journey flatly, gradually rising the road, there are no steep ups and downs, there are not many mountains on the Qinghai-Tibet line, more flat roads, there is no feeling of ups and downs, and it is easy to adapt.

As long as you adapt to altitude sickness, in fact, the Qinghai-Tibet line is not difficult to walk, nor is it difficult to fight!

Xue Rengui didn't know it before, but it turned out to be a mess.

Wei Xi knew the difficulties and advanced and organized the army to carry out altitude sickness adaptation training for a long time, but the Tubo people watched the Tang army rush like a dragon and a tiger, and the climate on the plateau seemed to have no impact on the Tang army, and they couldn't help but look dumbfounded.

To a certain extent, it became an important reason for the Tubo people to surrender to the Tang people, because the Tubo people were frustrated: the time and place were not on their side.

2. Above the source of the Yellow River in the area through which it passes, it is also in the upper part of the three major headwaters of the Yangtze River, and the river water is shallow, easy to wade in, and easy to build bridges;

3. The cold wind is strong, and there is no worry about heavy snow closing the mountain;

Although the wind and snow were severe, due to the flat terrain, the wind blew over, and the snow was blown away, leaving no snow to cover.

Without snow, there would be no meltwater eroding the road surface, making the road long-lasting.

Fourth, the frozen layer is thick, and there is no danger of collapse and slurry;

Yes, the land is hard, many roads have not changed for a hundred years, and the roads built are solid.

Fifth, the climate is cold, there are no avalanches, no glacial flows and debris flows.

Sixth, the road itself has been formed and slightly trimmed, because the Tubo people followed this road to attack the Tang Dynasty or trade and communicate with the Tang Dynasty.

The trouble with it is that the routes are long, and it is not easy to transport materials and logistical supplies.

At first, according to the plan, Li Jinxing expected to use 50,000 engineers and as many as 150,000 people, and even planned to kill half of the people in the plan.

But soon found that the reality was far beyond expectations, and wherever he went, he didn't know if he was enchanted by the coach Wei Xi, and he didn't come to fight the Tang Army!

Welcome and support the Tang Army.

As a result, when asked, many of the Tubo people in this area were supporters of the Qinling Tomb, and the Tang army was under the banner of avenging him, and those Tubo people supported the Tang army.

Moreover, the road is in an unusually easy state of view, beyond imagination.

Li Jinxing made a quick decision!

Cut the logistics force in half, and the infantry by 30,000!

The extra cattle, horses, sheep, and camels were taken with them, so that the guarantee of the Tang army was more powerful.

30,000 engineers were the main force for road construction, with plenty of cattle, horses, sheep, camels, grain, grass and medicines, shovels, pickaxes and other tools, as well as cement!

While exploring, they built roads along the way, and made up their minds to overcome all difficulties and build roads to some points as soon as possible.

This road, according to General Wei, is the road of heaven!

The road construction army gathered, and listened to the three female singers of the art troupe (the art troupe was indeed very useful in wartime) sing "Heavenly Road": I stood in the green pasture in the early morning, watching the eagle draped in the glow......

Li Jinxing heard this song, was touched, and personally grabbed the road construction business, he was smart in doing so, and the battle was fought by Wei Xi, so what can Li Jinxing leave for the battle?

That is to build the road to heaven!

Their road construction is to level the road, build the edge, set up mileage coordinates, direction signs, the Tang army is to keep advancing, leaving a team of engineers along the road, sub-contracting, at the same time start to build various road sections, and finally connect together.

The construction of such sections has greatly increased the speed of road construction.

Although it is not barren and easy to build, it encounters various problems on the road.

Some ditches are all over the place, the amount of construction work is very large, with more sufficient manpower and animal power, the morale of the road repair army is high, in addition to better security, there are higher material rewards, and the name --- the completion of the lot will be erected to record the participating engineering personnel, at the same time there is a detailed "Tianlu Zhi", in addition to recording the experience of road repair, the sub-book will record all the names of those who participated in the road repair, so as to leave a name in history!

Those who participate in the road construction will also receive a military merit medal issued by General Wei, which is not available in the imperial court, and is set up by Wei Xi, which is divided into gold, silver and bronze star medals, which is of great significance and is deeply liked by the soldiers.

All the participants are full of passion, everyone is energetic, compete with each other, compete between teams, compare between team members, labor horns resounded in the sky, earth-shattering, forming a vigorous battle scene, their hard work, will forever be recorded in the annals of history.

In the competition, many advanced figures emerged, and some engineers completed their daily workload several times more than their quotas, and many of them blistered their hands, bleeding and suppurating, but still insisted on working and could not get off the construction site with minor injuries. They are not afraid of dizziness due to lack of oxygen, they are not afraid of altitude sickness, they overcome harsh natural conditions, overcome all kinds of difficulties, and complete the road construction task excellently.

The Tang Army's engineering troops pushed the road forward at an astonishing speed, and with their spirit of hard work that was not afraid of hardships and bloodshed, they formed a powerful torrent that was invincible and invincible, and no difficulties and obstacles could be stopped or overwhelmed. Build a heavenly road on the Qinghai-Tibet Plateau and the roof of the world!

Compared with the attacking troops, the road construction troops encountered a lot of troubles, they saw the frost in June, the change of the sky, from summer to winter overnight, and heavy snowfall, so that the Tang people understood why the Tubo people still wore leather shirts even in summer.

If you don't wear a leather shirt in summer, you will probably freeze to death!

Sometimes heavy rain and light rain, the road is muddy, I didn't say it, I put it on the cement after the weather is clear! (Roads that do not rain much, only dirt roads can be built).

When I went up to the hillside, I found that everyone was in the clouds and mist, and the rain came down from the front and back, and it was so cold, the weather was extremely cold, severe lack of oxygen, difficulty breathing, and altitude sickness made a whole hundred people sick!

At the mountain pass, the wind is howling, the tents are blown away, it is difficult for people to gain a foothold, and roads have to be built!

Because of the heavy load of the project, many mules, horses and camels brought with them died.

……

When the combat troops happily said that they had a beautiful heaven, the engineering troops smiled bitterly and said that it is the son-in-law of the Son of Heaven who leads you, and we are not so blessed!

Not only to build roads, but also set up road maintenance stations, military stations, transportation stations and settlements, the road is like a link, the Tang Dynasty Shanzhou to the Tang Dynasty Lhasa (changed by Wei Xi's name), thus, the Tang Dynasty completely included the Qinghai-Tibet Plateau into the territory! (To be continued.) )