What Li Ran wants to build is the Tang Dynasty's version of the Macedonian defense line.

The mustache-like baguette had to bypass it to take off the underpants of the Gallic chicken, and to give the side-stuffed barbarian ten brains, and he couldn't come up with that kind of genius tactic.

Therefore, the four major passes are like barriers, encircling the hinterland of the most core passes, which can be attacked and defended, and have a proper strategic advantage.

This kind of century-old project is unambiguous, and the materials must be used the best, in a word, regardless of the cost.

The migrant workers were surprised to find that within two months, the appearance of the pass had quietly changed.

There's something called 'temperament'......

The original cold blue stone brick wall seems to come to life, and the surrounding supporting facilities are beginning to see scale.

Three-dimensional defense system...... Li Ran's concept is a bit ahead of its time, but once and for all.

Standing on the pass, overlooking the crowd in the distance, there is a sense of pleasure in the world.

That's right, the field of vision is so good, and the enhanced version of the household telescope set up on the city tower is not vegetarian, and it cost a full 10,000 fiat currency to extract, and the range of the enemy has expanded by at least three times.

For example, early in the morning of the winter solstice, Li Ran was on the city tower and saw a team in strange costumes from a distance.

"The Turks are coming."

After putting down the binoculars, Li Ran rubbed his arms and his eyebrows fluttered.

It's a pleasure to have friends from afar...... He hasn't engaged in 'reception' for a long time, and I hope the craft is not rusty.

"It's just the right time, the news from Qiuzi City is really accurate."

Pei Min was also excited, and he also wanted to have some fun with his boring construction site career.

"These fools gathered their troops to cruise along the vicinity of Liangzhou, probably wanting to smuggle across the Yellow River and attack Xiaoguan directly, not only them, but also the Tubo people, who had made enough plans for a sneak attack, bypassing Dafeichuan and going straight to Dasanguan, there is reason to suspect that these two groups of barbarians have reached a private agreement."

The nails planted in the Western Regions played a big role, and those Hu merchants could even tell their wives about the color of their bottoms for the sake of money, not to mention the whereabouts of other Hu people.

The Tibetans and Turks must never have dreamed that they were both Hu people, and the Hu merchants betrayed their compatriots so heartily, not only did they even count their whereabouts, but even the number of people...... Judging from the grain and grass materials provided, they are all more than tens of thousands of troops!

It's a bit stressful...... Double-front combat, with the strength of the Tang Dynasty border army, even if it can win, it is a residual victory, and Li Xian is starting to stabilize the situation of the dynasty, and his control over the border is not as good as Wu Zetian, who has been abandoning the government for a long time.

So the strategy has to be picky, and it can't be tough, but it has to let the other party retreat, and after allowing Li Xian to take a breath, he will find today's field.

Let's just take these teams of Turkic envoys who are getting closer and closer.

Li Ran took a deep breath and motioned for Pei Min to start the routine.

Close the door and let the dogs go!

The vision of the Turkic envoys suddenly lit up.

What's the situation, the sun has a fever?

Ashina raised his head instinctively and suspiciously, almost blinded by a strong dazzling light.

"Hmph, this land of the sick man in the Central Plains is good, even the sun is brighter."

muttered quietly, covering his eyebrows with his hands, and his greedy eyes were unusually clear.

He is a golden nobleman, and his uncle is the Turkic Khan, as a staunch main battle faction in the Turks, he has always advocated tearing his face with the Tang Dynasty and retaking the Hexi Corridor area.

A few months ago, the khan seemed to have received news from the Tang Dynasty that the female emperor was critically ill and the new monarch was not firmly established, so he just took the opportunity to do it.

However, the previous Jili Khan was very opposed to sending troops, and the main battle faction quarreled with the main peace faction, and the khan was undecided, so he made preparations with both hands, gathered troops at the same time, and complied with the meaning of the Tang envoys to come to 'pay tribute'.

"Huh, tribute? Do these sick men in the Central Plains really dare to speak? ”

The thought of the wording on the envoy's document made him furious, and if it had not been for the Khan's obstruction, he would have cut off the envoy's head with his own hands.

In accordance with the established plan, he pretended to go to Luoyang City to touch the reality of the Tang Dynasty, and after returning to the Turks, he immediately sent troops to fight these sick men in the Central Plains by surprise.

Ashina licked her lips excitedly.

I heard that those Central Plains women don't have a bit of sheep smell on their bodies, and they are delicate, so they must have a good time.

The more I think about it, the more I feel warm, is it that my body is already good enough to be able to heat up on its own?

Tearing open the collar of the sheepskin jacket, the skin was exposed and there was a pain.

No, it's hot!

Ashina Qiyun finally realized that something was wrong, there was something wrong with this blazing light!

He squinted his eyes and took a closer look, and his whole brain was down for a few seconds...... What the hell, these lights are not directly from the sun at all, but are refracted from the slopes on both sides of the narrow official road!

The dense white highlights on the hillside, accurately setting dozens of rays of light in the envoy procession, is there such a coincidence in the sky?

It can't be man-made, what a spectacle!

Therefore, ignorance is terrifying, even Li Ran admires these barbarians, who are exposed to the sun under the cluster, and the heat resistance attribute is estimated to be full.

"Brother Ran, they don't seem to be able to stand it."

Looking at these envoys frantically undressing one by one from a distance, Pei Min sincerely admired Li Ran's genius design.

The thing called the mirror on this hillside is really useful!

"Nonsense, bake it for another minute, and you can directly bake people."

Li Ran said that his focusing principle has not been returned to the physics teacher, and he has personally measured the concentrating intensity of the reflector, and it only takes less than two minutes to ignite the paper.

"So, do you want to remind them?"

“…… Shouting through a megaphone, you will speak Turkic, right? ”

Li Ran really wanted to see what kind of landscape the roasted living people were, so he immediately suppressed this somewhat perverted idea.

Pei Min did so, and shouted loudly with a loudspeaker on the city tower, and the sound instantly resounded for several miles in a radius, and even he himself was startled.

Not to mention the Turkic contingent on the lower slopes of the hill, the echo quality is very good, and the overlap is endless, like the sound of the sky.

Ashina's brain was down again for a few seconds.

But the body instinct commanded the limbs to follow the prompts in the voice, and rushed frantically to the edge of the hillside.

Finally, it was not cooked...... His skin was already red and purple, and the shocking blisters almost scared him to pee.

These visions made the Turks completely dumbfounded, and they stayed where they were, not knowing what to do, until the group appeared from the end of the field of vision, and suddenly realized that nine out of ten of what they saw was related to the Tang Dynasty.

Ashina Qiyun instantly remembered a legend.

It is said that there was an immortal master with boundless magic in the Tang Dynasty who used his magical powers to kill the Tubo God of War.

You can't be so unlucky, just happened to run into him...... Originally, he took this as a joke, which was purely a fig leaf for the defeat of the Tubo people, but this vision in front of him, which could not be explained by common sense, directly shattered his three views.

What's even more unfortunate is that the figure that appears in the field of vision seems to be exactly the same as the description of the immortal master!