"In the 17th year of Zhenguan... Li Shimin wanted to attack Goryeo... At this time, horses were what Li Shimin needed the most. If I offered horseshoes at this time, I would be favored by Li Shimin, and soared into the sky like Ma Zhou."

Zhu Xufan smiled proudly.

Soon Xu Yi's grandfather nodded slightly and stretched out a thumb to Zhu Xufan and said, "It's worthy of being Lao Zhu, it's amazing..."

"Haha..." Zhu Xufan smiled after being praised.

But at this time, Xu Yi asked: "Grandpa Zhu, I have always had a question, why did the Sui Dynasty and the Tang Dynasty attack Goguryeo. It was obviously a small place, and it was not very meaningful to defeat it. What should I do to try my best to attack Goryeo, and the Sui Dynasty also destroyed the country because of this."

"This is a good question..." Zhu Xudan looked at Xu Yi very pamperedly and said, "First of all, you need to know that Goguryeo is not a small place.

The largest sphere of influence of Goguryeo during the Southern and Northern Dynasties. Compared with the present, it is probably Liaoning Province plus half Jilin Province plus North Korea and half South Korea. Assuming this is an independent country, what is this country of size? You should have a look at it.

Moreover, this country has the same farming system and ideology as the Central Plains dynasty.

In addition to the many hills in northern Korea, the Northeast Plain and the central and southern part of the Korean Peninsula are suitable for cultivation. The Northeast Plain is close to Inner Mongolia and is also suitable for horse laying.

This is a place where you can dominate. Yan State can be one of the seven heroes of the Warring States Period by relying solely on Youyun and western Liaoning. During this period, Qi State was destroyed once. Later, Tian Shan restored the country and Qi State survived until it was unified by Qin State.

Goguryeo is a seven-hero of the Warring States Period. It also has the Liaoxi Corridor. One of the two major corridors that are at risk of life and death in China, the other is the Hexi Corridor. It is impossible for the Sui and Tang Dynasties to beat this Goguryeo down to death. Can it be possible if you don’t fight?

The Northeast was the second largest plain in East Asia at that time, second only to the North China Plain, and also had mountainous barriers, which can be said to be the foundation of the emperor.

It is like the Guanzhong Plain, which can be held on its own and fight out. Unlike the Mongolian Plateau, where the water conservancy in the Northeast can develop agriculture, and if there is agriculture, handicraft industry can be developed. Moreover, the temperature during the Sui and Tang Dynasties is high, the Northeast can accommodate more people than the Ming Dynasty.

Therefore, the regimes that can take root in the Northeast are one of the biggest hidden dangers of the Central Plains dynasty.

During the reign of Emperor Xuanzong of Tang Dynasty, the Bohai Kingdom was able to cross the sea to attack the Shandong Peninsula and burn down Dengzhou City. This was a reflection of the huge potential of the Northeast. Later, the Khitan, Jurchen, and the Qing Dynasty were no exception, all of which were based on the Northeast.

Say more. If you let Goguryeo leave it alone, then what would Goguryeo look like:

What if Goguryeo is one of the largest? This country is called Khitan. The Liao Dynasty, one of the three northern dynasties, was pressed against the head of the coward. Later, the wild wolf of the Liao Dynasty left, and another Siberian tiger came. This Siberian tiger was called Jin Dynasty.

What about the biggest one? The power is enough to unify China. This country is called the Qing Dynasty. The extremely prosperous territory of the Qing Dynasty was almost the scope of the "world" in ancient China.

What is the trick of the Japanese invading China? North Korea and Northeast China and the comprehensive invasion of China. The Japanese have absolutely studied China's geographical history, and since Toyotomi Hideyoshi, the monkey wants to do this. The officials condemn the source of the crime.

How did our party really have the strength to unify China? General Yongsheng Health brought 100,000 people out of seclusion, beat Wei Lihuang down three years later, and pulled more than one million people to Hainan Island.

In ancient times, Liaodong was like Guanzhong, Hebei, Central Plains, Sichuan Basin, Jiangdong and other places, and could compete for the world. Not to mention the large ancient empire that integrated the entire Northeast vassal of Korea.

Therefore, it was very correct for Emperor Yang of Sui to fight Goguryeo. If it is not destroyed, Goguryeo will gradually develop, especially when it enters the Daxinganling westward, the generation of people who come into contact with nomadic peoples to obtain horses and becomes farming-nomadic dual empires, and then they can compete for hegemony with us.

Although Emperor Yang of Sui failed, what he did was very correct. Li Shimin, who later generations claimed to be the emperor of the ages, basically continued his policies. Emperor Yang of Sui fought Goguryeo, and Emperor Taizong of Tang also fought Goguryeo.

Emperor Yang of Sui opened the Grand Canal, and Emperor Taizong of Tang also opened the Grand Canal. However, Emperor Taizong of Tang grasped the rhythm well and these things were done, so he became the saint. But does this also prove that Emperor Yang of Sui was correct in his grasp of the direction?

Do you understand...?"

To be honest... not only Xu Yi understood, but Li You on the other hand also understood that Goguryeo is not a small country, but a big trouble in the Central Plains. We have never understood why the Sui and Tang Dynasties had to do their best to attack Goguryeo because our situation was small.

However, the two emperors of the Sui and Tang dynasties saw the essence of Goguryeo early on.

Later, Li You went to learn that Goguryeo was not a small country. Goguryeo was founded for hundreds of years, with a population of about 7 million, and hundreds of stone city fortresses and loose nomads.

Goguryeo is also farming, with a strict social organizational structure, and Goguryeo's own cultural system is independent. It has a centralized farming country with a standing army of more than 100,000 and a military force after the war mobilization. There is no gap between the technical productivity and the Central Plains. The most important is the ideological and cultural system and the Central Plains to compete with each other. Anyone who has such a country must do their best to kill it.

"So that's how it is..." Li You and Xu Yi nodded together.

At this time, Zhu Xufan sighed and said, "What a pity, I can't travel through time. If I can travel through time, I must contribute to the attack on Goguryeo...!"

Hearing this, Li You sighed slightly.

"By the way... I said so much that it was irrelevant, and I almost forgot to call Xiaoyou over." Zhu Xufan looked at Li You and asked, "Xiaoyou, are there any jade pendants in the Tang Dynasty palace? If there is... I will buy yours at the highest price..."

"Haha..." Li You touched his arms, then took out two jade pendants and handed them over: "I wish you a price for Grandpa, I won't bargain..."

Zhu Xufan excitedly took the two jade pendants, and immediately showed a happy expression: "Okay...good...it's really great. It's completely open the door, and it's all high-quality.

One is 5 million, two are 10 million...is it OK...?"

"Oh...wait...I'll go out..." Xu Yi's grandfather felt itchy again when he saw Li You's two jade pendants. However, as soon as he said, Zhu Xufan on the side said speechlessly: "Old Xu, you have a few good jades, and you have to compete with me?"

"Haha... don't rob, don't rob, but you've already said that, you should add a little more...?"

"That's right...then 12 million..." Zhu Xufan said nothing, as if the money was just a number to him.

Li You also bowed quickly and said, "The elders give me, I dare not refuse... By the way, two grandpas, do you want to write and paint, besides jade pendants?"

Suddenly, Li You thought that you could not always sell jade pendants. If you sell too many, someone would doubt it. So Li You thought of calligraphy and paintings, especially Li Mingda, who could copy Li Shimin's white body, was around him. How much should this calligraphy of the One Jun of the Eternal Kingdom be sold?

................
Chapter completed!