It is very difficult to cross the border in modern times, after all, the border area, but there are troops stationed and guarded, but in ancient times, this is very easy, especially the Goryeo Dynasty is in turmoil at the moment, and there are a lot of troubles within their own court, not to mention taking care of other places, so the grasp of this border area is even more relaxed. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 ｉｎｆｏ

Crossing Tumen, Jiang Shencong and others was considered to have entered the territory of the Goryeo Dynasty.

The northern part of Goryeo is close to the Changbai Mountain area in the northeast, which is mountainous and steep, and due to the terrain and climate, it has been difficult for Chinese and other dynasties to enter and occupy Goryeo, and today seeing the northern part of Goryeo, Shen Cong did understand why the Qin, Han and Tang dynasties could not occupy the Korean Peninsula.

First of all, the geographical transportation here is extremely inconvenient, with lofty mountains and steep cliffs. Although the Korean Peninsula and the Northeast are close to each other, Northeast China and North Korea not only have a series of natural hazards such as the Yalu River and the Changbai Mountain, and it is difficult to rule and conquer. Moreover, Korea is also a bitter cold place, think about Heilongjiang Jilin really included in China's effective management was also in the Qing Dynasty, the Central Plains regime to extend its hand to North Korea, must first consolidate the northeast, can not effectively rule the northeast, can not be local conscription of troops and grain, attack Korea, it will become a labor expedition, the transportation of grain, grass and soldiers is huge, military operations often outweigh the losses.

Of course, the current large-scale sinicization of the Northeast still relies on the "Guandong" that began at the end of the Qing Dynasty, and most of today's "Northeast people" come from that great migration. In the past, the Han nationality was mostly concentrated in the Liaodong Peninsula, due to the severe cold, there were very few people engaged in agriculture further north, and because of the lack of population, when the Central Plains was unified, the Han and Tang dynasties were at most staking and powerless to control.

Because he was unable to control it, and he was afraid that Korea would make trouble, he could only send envoys to intimidate and force the Joseon Dynasty to be a vassal state, and the Goryeo Dynasty was also afraid of the invasion of the Central Plains regime, so it was also willing to obey the Chinese regime and be a vassal state of the previous dynasties, such as Silla, Goryeo, etc., which were successively vassal states of Tang, Liao, Jin and other countries.

Of course, it is also beneficial not to fight North Korea, and to have North Korea as a subject country.

First of all, it can be used as a buffer zone, it doesn't matter how much money is spent on war, as long as it is not on your own territory, it is good to win, and there is room for maneuver if you lose. In addition, it can assist in defending against foreign enemy attacks; Then, the expense of management and defense is eliminated; Then, you can promote the national prestige to the outside world; After all, the more vassal states there are, this is an effective means of showing the strength of the country.

Since ancient times, there must be contradictions in a country, and there must be many contradictions within the vassal countries, so it is better to let them obey their orders and pay tribute, and then they themselves will engage in the contradictions within their own countries, no matter who is the emperor, as long as they give me obedient tribute, this seems to be the heart of the monarchs of all Chinese dynasties.

Of course, this can also reflect the bearing of a great power. In Chinese history, even Emperor Wu of the Han Dynasty, who was given the title of "Poor Soldiers", only waged a continuous war against the Xiongnu because of his peace with the Xiongnu. "At the end of the day, it's a defensive stance.

Throughout history, China has rarely taken the initiative to attack foreign countries [except for Mongolia], let alone run to other people's territory with muskets and cannons, erect a national flag, and declare sovereignty over the place.

We know that the Chinese dynasties have been a land power country, an inward-looking closed country, there is no sense of sea power, and the standard for Chinese to measure whether a place is worth fighting is whether the place is suitable for farming.

It would be good if the grain produced on the Korean Peninsula could barely feed itself, and it was a waste of food to help him in a famine year, and it was no good to fight it with great effort, so North Korea was listed as a non-conscripted place by Zhu Yuanzhang, Taizu of the Ming Dynasty.

The last point is that the rulers of North Korea are more obedient, aware of the existence of the Celestial Empire, which is a behemoth around them, and most of the time they can be a little brother with peace of mind, call the ministers a tribute, send some ginseng and send a few beauties, even if you defeat North Korea, the meaning of this place to the ruler is nothing more than these two things.

Therefore, for the rulers of China in the past dynasties, there is no need to divide it into the territory if they can control North Korea, there is not much difference, there is no territorial consciousness in ancient China, many times both sides tacit in their hearts that this is yours, it is mine, unlike the Europeans who have to draw a clear line of mountains and ditches. As long as you are honest and obedient and don't make trouble for me, I don't need to beat you.

So North Korea and China have always been in an extremely delicate relationship, and they are at peace with each other, except for a few North Korean rulers who have their heads pumped.

"Boss, look at the territory of your Goryeo Dynasty, I thought it would be much worse, but I didn't expect it to be even worse." Shen Cong looked at the territory of the Goryeo Dynasty from the seven people behind him and couldn't help but be stunned, looking at the mountains, it was still a mountain, which was almost a deep mountain and an old forest, and there were not many people.

Shen Cong nodded and explained: "The terrain in the northern part of Goryeo is mountainous and watery, in fact, it is similar to the terrain at the end of our southeastern region of the Central Plains, which can be regarded as hilly areas, but the terrain of our southeastern hills is not so high. The northern part of Goryeo can be said to be a mountainous terrain with not many plains, so it is difficult to have many people. ”

"Alright, we should be able to enter the city of Goryeo all the way down the south." Shen Cong looked at the terrain and said softly, and then took the road to the south.

This walk, almost half a day, a few people finally out of the mountains and forests into the official road of the Goryeo Dynasty, the flow of people on the official road gradually increased.

"These people seem to be refugees who have fled the desert, and you can see that they are all carrying baggage." Looking at these people in the dark night, I couldn't help but be a little stunned.

Shen Cong laughed: "What's so strange about this, once there is a war in our place, there will be such a situation, so let's go with the refugees now, maybe we can enter a city." ”

"Hmm." Several people nodded and did not disagree with this.

Although several of them walked in the refugees in a low-key manner, their figures were too abrupt, because compared with the refugees around them, their figures were too burly and tall, their skin color was too white, and the clothes on their bodies were too rich.

Looking at these refugees, Shen Cong couldn't bear it, so he gave them some food, medicine and belongings he had brought with him.

Although the language barrier, Shen Cong's move won the favor of everyone, and everyone respected Shen Cong very much.

"Fellows, I wonder if anyone here can understand me?" Shen Cong shouted at these people, hoping to find someone to be the translator.

As expected, a middle-aged man walked out after a while: "This official, are you Jurchen?" How did you get here? These are troubled times. ”

"We are not Jurchens, we are from the Central Plains." Shen Cong said to everyone with a smile.

"Is the Central Plains still the Yuan Kingdom?"

"No, the Central Plains has changed dynasties, and now the Central Plains is the Ming Kingdom, and the emperor is Zhu Yuanzhang." Shen Cong said carefully to everyone.