Yang Congyi nodded and said, "Yes, that battle was indeed a half-battle, so we won." South of the Yangtze River, there are many rivers, since ancient times, the grassland soldiers who have gone south all hate the Yangtze River, even if they cross the Yangtze River, they will quickly retreat, because it is difficult for them to adapt to the terrain of many rivers. We have been to Quang Nam, and we all know how difficult it is to march and fight in a place with many rivers, a distance of 30 miles, five rivers crisscrossing and a team of 2,000 people, which cannot be walked in a day. However, the north of the Yangtze River is different, there are not many rivers in the north, except for the Huai River and the Yellow River, there are no other rivers that are too big, and the fear of marching and fighting in the north is not that there are many rivers, but that they are afraid that they will not be able to find the river, and that there is little water in the north, and if they cannot find the river, there will be no water source, and the lack of water source is a taboo for marching and fighting. Therefore, when dealing with rivers, we are fighting in different areas, and we must treat them differently, the north should be as close as possible to the river to facilitate the access to water, while the south has a lot of water, and the garrison and march should be far away. ”

Pan Cheng said: "Don't worry, my lord, last year in Guangnan, our whole army was stationed in the mountains, barrage and store water in the upper reaches of the river, and after the water was released, the enemy army was flooded with four or five thousand people, which we saw with our own eyes. ”

Yang Congyi shook his head and said: "I just said, whether to stay away or close, it depends on where you are, in the north where there is little rain, there are few rivers, the river water source is life, you don't have to be too far away, you can't be too far away, if nothing else, our main combat direction in the future is the north, north of the Yangtze River and Huai River, it is almost impossible to flood the enemy army, but it is a big deal to find a water source." When I have time in the future, I will tell you about the geography of the Great Song Dynasty and the topography of each place. ”

After a pause, his mind immediately returned to "The Art of War", and then said: "Okay, let's move on to the march, and see what Sun Tzu said about the army's marching operations in places other than mountains and rivers. We see that in the Art of War, he said that through the saline swamps, it is necessary to leave quickly, and it is not advisable to stay; If you encounter an enemy in a saline swamp, you must occupy an area where there are water and grass and lean against the woods. These are the principles of disposition for marching operations in saline swamps. To garrison troops in the plains, it is necessary to choose a place with flat terrain, preferably with a high back, low in front and high in the back. These are the principles of disposition of marching operations on the plains. ”

Sun Tzu said in the march chapter how the army should march in the mountains, rivers, swamps, plains four places, how to station, the benefits of these four marching combat principles, is the ancient Xuanyuan Yellow Emperor was able to defeat the other four important reasons, thousands of years later, we are now marching like this, there will be no mistake, there is still a good reference significance. You have all fought in the north, whether you marched like this in the plains, you should know very well, it is very easy to understand, I will not repeat it here, let's move on. ”

Seeing that the generals looked relaxed, Yang Congyi continued: "The garrison always prefers dry highlands and hates damp and low-lying places, requires the sun, avoids dampness, and is stationed in places that are convenient for life and high terrain, so that the soldiers will not have all kinds of diseases, which is an important condition for the victory of the army. The garrison of hills and embankments must be stationed on the sunny side and have their backs to it. These favorable measures for the use of troops are aided by the terrain. When it rains heavily in the upper reaches of the river, you should wait until the water is stable before crossing the river to prevent flash floods. Whenever you encounter terrain such as "Absolute Stream", "Patio", "Heavenly Prison", "Tianluo", "Heavenly Trap", "Heavenly Gap", etc., you must quickly avoid it and do not approach it. I stay away from it and let the enemy approach it; I face it and let the enemy turn their backs on it. What does this mean, and how do we understand it? ”

The explanation and discussion continued, and everyone used their brains.

In explaining the Art of War, Yang Congyi would ask questions from time to time, so that the generals could participate in it, and use their experiences to confirm what the Art of War said and deepen their impression of the Art of War.

For three whole days, every day from Shen Shi to Sunset, everyone finally completed the three military studies.

In the past three days, everyone has gained a lot, the generals have been in the army for many years, and they have been marching and fighting according to the orders of their superiors, rarely thinking about why it is like that, many times the team is scattered, and they escape from the ascension by instinct, and they will not investigate the reason at all. However, what they have experienced and seen in the army is still limited, and after listening to the three-day class, they have learned a lot, but in order to understand all of them, they have to experience and train them one by one in practice in the future.

"Okay, the three-day course talks about the "Art of War" marching chapter, terrain chapter, and nine places chapters, although it is not much, but what the Art of War says should be done, what not to do, and how to do, after you go back, you must understand and figure it out well, and strive not to make mistakes when you really march and fight in the future. You must remember that any mistake can kill you! ”

At the end of the course, Yang Congyi made a final summary, he had never taught before, but his way of teaching was much more vivid than that of Taixue and martial arts professors at this time, but the shortcoming of being very blunt when lecturing was that he couldn't change it for a while, he had to talk enough to be able to make the class lively and lively.

"Yes, sir!" The generals said in unison, they had not had the opportunity to read and listen to lectures before, let alone have generals teach them the art of war, this time Lord Yang personally explained the art of war to them, everyone benefited a lot, and they were naturally grateful.

Yang Congyi nodded slightly, how much can these generals learn, can they learn in their hearts, and use it in practice, he is not sure, because they are all people who have fought and seen life and death, and many times they rely on instinct, and when it comes to the moment of crisis, where will they remember the art of war they have learned, they can only rely on their own abilities, do their instincts, can win, and can escape, in their opinion, it is enough, to force them to do how well they do, and through three days of study, they will all become victorious generals, it is impossible.

He stood in front of everyone and said: "We are all still young, five years later, the Song and Jin wars, we will all be the main force, as long as we can fight and dare to fight, it is very likely that we will lead an army, and then your identity will no longer be the person who executes the order, but the person who gives the order, and every order you give is related to the victory or defeat of the battle, and the survival of the whole army." Therefore, I hope that you will regard yourselves as the commander-in-chief of the first army from the beginning of the selection of the touchstone troops in this actual battle, and that you will give marching and battle orders by yourself, and be responsible for the future of the entire army! ”

glanced at everyone, and then said: "I told you in advance that I will not participate in the actual combat deployment as a judge in this actual battle, but will only announce the rules and issue orders for the start and end of the actual combat, and everything during the period is all up to you." Do you understand? ”

When the generals heard this, they immediately panicked and looked at each other, the future of the entire team was on them, and the pressure was too great, could they really do a good job?

Each of them has no bottom in their hearts, how have they ever experienced a moment when an army is all in charge of their own affairs?

"You don't have to be under too much pressure, as long as you think more, think more, plan in advance, and fight a prepared battle, the result will not be too bad. When the camp was first established, there are many opportunities for you to perform, as long as you are down-to-earth, everyone will be useful. I will give you five days to prepare, and early tomorrow morning, I will announce the rules of the actual battle, and after five days, the actual combat will officially begin. Yang Congyi smiled slightly.

Luo Cong turned his eyes to look at the others, and then asked, "My lord, where are we fighting?" Is it on the school ground, the training ground? ”

Yang Congyi waved his hand and said: "No, the real actual combat is in the place where we can't see each other before the enemy and us encounter each other. Our actual combat field is in the mountains behind us, where the world is vast, and you can arrange your troops and give full play to your imagination. ”

Everyone was shocked, their faces changed abruptly, the situation in the mountains was complicated, if you want to fight in the mountains, it is really a real battle!

Yao Chang thought for a while, and immediately asked: "My lord, the terrain in the mountains is complex and the situation is changeable, if you fight in the mountains, you will inevitably arrange all kinds of traps and ambushes, causing casualties among the soldiers, what should we do?" ”

As soon as this question was raised, others responded one after another, not knowing if they really cared about the lives of the soldiers.

Yang Congyi said: "Since it is a real battle, casualties are inevitable. But we should try to avoid unnecessary casualties, for example, when traps are ambushed, we should consider how to arrange them to cause a lot of actual damage, how to arrange them so far, and replace them with small stones, rotten wood, and tree bark. The more you think about it, the clearer you think, and when you go to the real battlefield in the future, you will be able to play with ease. Therefore, when fighting in the mountains, it is necessary to avoid casualties, and if someone really maliciously creates casualties, military law will deal with it. ”

Su Zhong said: "My lord, if you think about it so much, it will be too troublesome to fight in the mountains, so it is better to find a place at the bottom of the mountain and do it head-on!" Do you think so? ”

Some people agreed to this proposal, and some people ignored it silently.

Yang Congyi said: "No, complex terrain and changeable situations can test whether the fighting spirit of the army is strong, and whether the army can really fight. Moreover, there is another very important point, send troops to fight, do not win to think about defeat first, before you fight, you have to think about it, if this battle fails, what will happen, is to save your life or fight to annihilate the whole army, in the plain terrain, victory is alive, defeat is only a dead end, and fighting in the mountains is very different, there are many variables, victory and defeat are mutually easy, in an instant, so every army must be able to fight mountain warfare. This decision has been made and cannot be changed! ”

As soon as he heard this, there was a sudden silence in the barracks.

"If there are no other objections, you can go back and prepare, the sword must be hidden, the spear should be removed, and the marching food and grass can also be received in advance."

"Yes, sir!"

The generals stood up and clenched their fists and left.