The Great Wall is so short, can it resist invasion? Is it necessary to build the Great Wall?

It's not Liangshan heroes who don't climb the Great Wall, but because they climbed it. If you climb the Great Wall and lament the outstanding ancestors of China, do you think the Great Wall is so short that it can really resist foreign invasion? The Great Wall was built on a rugged mountain, and the original mountain was already very dangerous. It is difficult for the army to climb these mountains. Isn't it a lot to build another short Great Wall in the mountains? And whether for feelings or other purposes.

Accelerate the transmission of the situation and improve the overall combat capability. Let's talk about the historical time when the Great Wall was built. Take the Western Han Dynasty as an example. Because we have no food crops, nomadic people in the northern region often invade the Western Han Dynasty in winter. In order to better deal with this Xiongnu, the beacon tower was established in the Western Han Dynasty. Unlike the Great Wall today, the beacon tower is broken, which is equivalent to a trial of the Great Wall. After the construction, the soldiers looked at each other at once. Then all the troops will be connected, because the overall communication is more and more instant, so the ability of joint operations has been greatly improved.

As we all know, in ancient times, the most powerful was not infantry regiment, but cavalry. The infantry regiment was defeated by cavalry several times, but the ability of cavalry in ancient China was relatively weak compared with the enemies around it. It is possible that the Great Wall is not very effective in resisting infantry regiments, but if you want to ride the Great Wall, the difficulty coefficient will increase to a great extent. Therefore, under such circumstances, the Great Wall is capable of resisting foreign invasion.

In ancient times, after Qin Shihuang unified China, in order to better resist the Huns, the Great Wall of Wan Li was built, starting from Gansu in the west and ending at the winter solstice in Liaodong in the east. Separated from the Huns, Qin is south of the Great Wall. Coincidentally, the Great Wall Line is basically the same as the 400 mm isoprecipitation line in China. In this way, both the climate and the region are completely separated from the Huns.

Three-dimensional highway When the opponent walks on the rugged new road in ancient times, our troops move forward at will on the Great Wall Road, and the friction resistance of walking on the Great Wall is obviously reduced, further improving the combat rate of soldiers.

Launching an economic blockade outside the Great Wall and severely attacking other countries in economic development may indeed be unable to resist the invasion of foreign enemies. After all, after the completion of the Great Wall, the Huns invaded many times, but it has another unique function. Although the Great Wall cannot be invaded by foreign enemies, it can prevent ordinary people from entering and leaving, especially businessmen from entering and leaving at will. So trade is monopolized. A notable example is that during the Ming Dynasty, according to the Great Wall's ban, rice in the late Jin Dynasty achieved seven taels of silver, which slowed down the war between the late Jin Dynasty and the Ming Dynasty.

At that time, the ancient people in China had this kind of logical thinking to build such a world miracle, which shows why the Chinese nation stood for five thousand years.