Although the beginning of the short sentences has already revealed the military mountains and geography of the Central Plains. The division of nine major blocks, four sides and four corners of the world also made the prime ministers in the Political Affairs Hall interested one by one.

In particular, Li Benlei was also a general who had fought for his whole life. He was not interested in the political affairs of the Political Affairs Hall, but when he heard about strategy, he immediately became energetic. His originally low head turned to Li Jing immediately, and his eyes were even more sharp.

Li Jing said loudly: "In this chessboard pattern, Guanzhong, Hebei, Jianghuai and Bashu are divided into four corners. The four corners have their own unique geographical conditions, superior mountain and river situations, relatively stable rears and dangerous obstacles that can be relied on, and in a situation where they can advance and attack and retreat and defend; there are also superior economic conditions that can be supported and supported a huge political and military force; when one side of the forces first emerged, it occupied the dangerous land of the four corners of mountains and rivers, and could establish a base, operate calmly, accumulate strength, and lay the foundation for the future advancement of the world. Now our court has occupied one of the four corners of Hebei, which is why we have the current great situation."

"The four mountains and rivers in Guanzhong are surrounded by four mountains and rivers, with Qinling Mountains in the south, Longshan Mountains in the west, Loess Plateau in the north, Huashan, Wushan and southwest Shanxi mountains in the east, and the Yellow River is surrounded by mountains and rivers, and the momentum is gathered. In terms of terrain, Guanzhong is in a high position towards the eastern plains. There are mountains and rivers on all sides of Guanzhong, and several important traffic channels are established to guard them. The important position is that Hangu Pass holds the dangers of Wuhan, controlling the communication channels between Guanzhong and the Central Plains; Wuguan Pass;

Control the danger of the eastern section of the Qinling Mountains, guarding the entry passage in the southeast direction of Guanzhong; Sanguan shackles the danger of the western end of the Qinling Mountains, controlling the communication throat between Guanzhong, Hanzhong, and Bashu; Xiaoguan shackles the danger of Longshan Mountains, guarding the northwest passage in Guanzhong. The four barriers are dangerous and solid, and you can defend yourself when you go out of the pass. If the situation is favorable, you can advance and defend yourself when you go out of the pass. Therefore, you can defend yourself when you go out of the pass. If the situation is unfavorable, you can defend yourself when you go to Guanzhong, so that you can advance or retreat, attack or defend. This is also the fundamental reason why the Qin, Han, Zhou and Sui finally won the world."

"And the Hebei that our court now occupies is surrounded by mountains and seas. It is surrounded by mountains and seas on three sides, and is in the south. The Yanshan Mountains play a barrier to fight against the southward nomadic peoples in the northern part of the country, covering the security of Hebei and even the entire Central Plains. Jundu Passes, Linyu Pass, Songting Pass, Beikou, Lengkou, Lulong and other passes. It guards several traffic channels passing through the Yanshan Mountains. The Taihang Mountains are an important barrier on the right flank of Hebei. Feihu Xing, Jingxing Pass, Fukou and other passes guard the passages passing through the Taihang Mountains. There are some east-west rivers in the hinterland of the Hebei Plain, such as the Juma River, Hutuo Water, Zhangshui, etc., which can become our strong gateway barrier to resist threats from the south."

"The defensive pattern of Jianghuai is a multi-level defense system based on the Yangtze River and Huaihe River. Confrontation between the north and the south. The south mainly relies on the Yangtze River and Huaihe River. The formation of some important military cities in the south are based on this. The Yangtze River connects Bashu on the top, passes through Jingxiang on the middle, connects Wuyue on the bottom, extends across the east and west, and extends for thousands of miles. The upper and lower reaches echo each other, making the situation in the entire southern region complete. In addition, the Yangtze River itself plays a natural barrier against the impact of the northern cavalry. With the rise and fall of the north and south forces, its offensive and defensive momentum also changes with the rise and fall of the south. When the south is strong, it can move forward to Huaibei to advance to the Central Plains; when the south is weak, it often retreats to the Yangtze River; when the north and the south are evenly matched, it often uses the Huaihe River frontline as the frontline of the confrontation."

"Bashu is located in the upper reaches of the Yangtze River Basin and is a typical basin terrain. In every direction outside the basin, there are mountains and ridges, and the protection is not comparable to other regions. The Three Gorges of the Yangtze River are the channels between it and the east, and the lowlands of the Jialing River and its tributary valleys are the channels between it and the north. The channels between the two directions are extremely dangerous. Generally, the east is a waterway, a riverway, and a plank road. It has always been a natural dangerous place, easy to defend and difficult to attack."

"According to the dangerous places of the four corners of mountains and rivers, most of them can achieve hegemony in the area." Li Jing said slowly.

Chen Kefu nodded. It is true that the four corners have one common feature, which is that they can be located in the four corners, and can be attacked when advancing and defend when retreating.

After a pause, Li Jing continued, "Hedong, Shandong, Jingxiang and Hanzhong are divided into four sides. Most of the four sides have relatively dangerous mountain and river situations, but these regional conditions are not as good as those of the four corners. They are sandwiched between the two corners, and they can come and go. They are both the links of contact between the two sides and the focus of the struggle during confrontation. Their topographic characteristics are also consistent with their status, including traffic channels for both sides to enter and exit, and dangerous points that can be guarded; and, there are relatively close channels between them and the Central Plains. In the past dynasties, forces that emerged from the four corners, if they want to get rid of the domineering situation of separating one corner and expand outward, they must first compete for the two wings and control the two sides of the corner."

Hearing this, Chen Kefu's eyes lit up and he felt thoughtful.

"Hedong has a hub position in the entire north. The main body of the Hedong terrain is composed of mountain ranges on the east and west sides and a series of bead-shaped basins in the middle. The Taihang Mountains to the east form the western barrier of Hebei, and the Luliang Mountains in the west form the eastern barrier of Guanzhong. The mountains and rivers in Hedong are intricately distributed, forming a series of small basins. The terrain of these basins is relatively closed and becomes relatively small areas. In these small areas, some military cities and important passes are formed. They are respectively divided into different areas.

Facing different directions, it shows different strategic significance. The mountain and river situation in Hedong makes Hedong extremely favorable for internal combat. The terrain of Hedong is high and sufficient to overlook the three sides; the several traffic channels leading to the outside are mostly conducive to going out but not for attack. This is a favorable condition for internal combat in Hedong and it is also the geographical basis for the formation of Hedong's status as a hub in the north. The battle between the Liu Han of the Huns and the Han Dynasty in the destruction of the Western Jin Dynasty, the process of the rise and fall of the Northern Wei Dynasty for a hundred years, and the change of the Zhou, Qi and Sui Dynasty in the three dynasties can all illustrate Hedong's hub status in the north."

"The significance of Shandong terrain is that it is particularly prominent on the Central Plains. The main body of Shandong terrain is low mountains and hills in central and southern Shandong, with plains on three sides and surrounded by the sea on the east. Some important military strongholds in Shandong are basically distributed on four sides of low mountains and hills in central and southern Shandong, with most of them facing the rivers, controlling one side. The Yellow River runs east and west in the north and is a major transportation artery between the east and west. The Grand Canal runs north and south on the eastern plain and is a major transportation artery between the north and south. Shandong is at the intersection of these two major arteries. In addition, the Shandong Peninsula is a major transit place for maritime transportation. Shandong particularly holds a hub position between the north and south. Now when we confront South and South, Shandong is the focus of our competition."

"Jingxiang is located in the middle reaches of the Yangtze River, and is in a hub position between the upper and lower reaches. There are long mountains outside Jingxiang that are dangerously blocked, and large rivers lead to the country, thus forming its strategic position as a "country of use of strength". Going up the Yangtze River along the Yangtze River and crossing the Three Gorges is one of the main channels to enter Shu; if it is a confrontation between the upper and lower reaches, Jingxiang can block the forces in the Sichuan from the east. Jingxiang is located in the upper reaches of the southeast, based on the forces of Jianghuai, and all rely on Jingxiang as the barrier of the upstream. Since ancient times, no one can lose Jingxiang and maintain Jianghuai. The Western Jin Dynasty destroyed Sun Wu and the Sui Dynasty destroyed Chen, and the situation has been opened from the upper reaches of Jingxiang. Therefore, if our court fights with the Chen Dynasty in the future, Jingxiang will take it first."

"One of the four sides is the main body of the Hanzhong terrain between the Qinling Mountains and the Daba Mountains, which form the main body of the Hanzhong terrain. The two rows of mountain ranges stand parallel and stretch east and west, and Hanzhong is sandwiched between them. There are Wuguan at the east end of the Qinling Mountains, Sanguan at the west end, and three other valley roads, which can be the passage between Hanzhong and Sichuan. They are Baoxi Road, Tangluo Road, and Ziwu Road. There are also two valley roads that cross the Daba Mountains: Jinniu Road and Micang Road. Hanzhong is sandwiched between Guanzhong and Sichuan, the two upper reaches of Guanlong and Bashu have always been the most intense battle between Guanlong and Bashu. "

You Tao is to listen to your position, which is better than reading for ten years.

After listening to Li Jing's explanation of the geographical pattern of the world, Chen Kefu, a half-bucket strategist who originally came from Xi Chengcai, immediately became enlightened. Li Jing's mere words had already explained all these things thoroughly. This is more effective than reading a lot of military strategies.

Chen Kefu was excited, always feeling that he had realized something, but it seemed like he could almost catch it. He sat there, closing his eyes and pondering, trying to hit this feeling.

When Li Jing saw Chen Kefu's appearance, he understood his feelings at this moment, and no longer spoke, just sat there. Although Fang Xuanling and others were not generals, they could hear the same way of talking about geographical structure and strategy rather than tactics. They all nodded their heads, and their feelings made sense. They sighed in their hearts, no wonder King Chen valued Li Jing so much, not only did he let him stand alone, but he also became the prime minister. Li Jing was indeed able to take responsibility.

After a while, Chen Kefu suddenly slapped his thighs excitedly, stood up and said happily, "I understand. I finally understand what Mr. Wei said just now. According to Mr. Wei, no matter which corner of the political force is, the gains and losses of the operation of both wings, are enough to determine its rise and fall, and are enough to determine whether it can get rid of the domineering pattern and expand outward. Operating the two wings well can consolidate its defensive posture in terms of defense; in terms of offense, it can constrain the Central Plains and advance the world."
Chapter completed!