What was the Ming Dynasty's strategy for Kaiyuan's internal defense system?

During the Ming Dynasty, there was constant war in the north. In the early and middle period, it mainly resisted the internal invasion of the Yuan Army, and in the later period, it mainly defended the southward invasion of the Jin Army. Therefore, at the end of the Ming Dynasty, the defense in the north was very heavy. To this end, the Ming court built the Great Wall, a military defense project, and built nine defense zones along the nine towns as the center for the use of nine borders. "Among them, Liaodong Town governs the land of' Yalu River in the east, Shanhaiguan in the west, Lushunkou in the south and Kaiyuan in the north', which is the first of the nine sides. The principle of opening Xinjiang is a city with important strategic significance in Liaodong Town. Then, I will talk about the Ming dynasty's strategy for the internal defense system of Kaiyuan.

First, Kaiyuan's unique geographical location and important strategic position

Kaiyuan used to be "the old capital of the two countries" and "the important town of the Five Dynasties" and was known as "the ancient city of northern Liaoning". Ming Hongwu twenty-one years, Kaiyuan Road moved to Xianping House. R Zhu Yuanzhang did not dare to take the advice of Prime Minister Liu Bowen, so he changed "Kaiyuan" to "Kaiyuan", without changing the original name, but also changed the meaning of pioneering, grand, auspicious and healthy, hence the name "Kaiyuan".

In the Ming dynasty, this used to be a place of victory. "Controlling the border and taking the town to the upper reaches of Liaoning is a dangerous place." It is surrounded by mountains in the east and north, and covered by Liaohe River in the west. It has a favorable terrain that can block mountains and rivers and is easy to attack and difficult to defend.

Second, the Ming Dynasty's management of Kaiyuan's internal defense system

In the early Ming Dynasty, Kaiyuan was the place where Naha, the general of the Yuan Dynasty, lived. In the twenty years of Hongwu, Zhu Yuanzhang sent Sheng Feng, Fu Youde, Ying Guogong and General Aquamarine. And besieged Naha from its lair Jinshan, Naha was forced to surrender. Since then, Kaiyuan has been under the jurisdiction of the Ming Dynasty. Kaiyuan, as the far northern border under the effective jurisdiction of the Ming Dynasty, guarded the northern gate of the Ming Dynasty. It can be said that the safety of Kaiyuan City is related to the life and death of the Ming government, and the history of the demise of the Ming Dynasty also proves this point. Therefore, the Ming Dynasty attached great importance to Kaiyuan and adopted a series of measures to elaborate its internal defense system. For example, the king was appointed and a health clinic was established.

In a word, the purpose of the Ming government's management of Kaiyuan internal security system is to strengthen and consolidate the security in the north. It was the great concern and painstaking efforts of the Ming court that made the overall situation of the northern frontier fortress, which had always been shrouded in war and military disasters, more relaxed and there was no large-scale war, in which Kaiyuan played a vital role.