Li Junxian knew that Li Shimin was also listening, and he was even happier in his heart. If his lectures can be recognized by Li Shimin, he will definitely reuse them in the future. And Li Shimin is also listening to the lecture, which shows that Li Junxian's explanation has moved Li Shimin, and can even have a very long-term impact on Li Shimin. As long as Li Junxian talks about it well, it can completely affect the future of Datang through this explanation.

"We have just talked about the nature of war, and now we will explain the emotional factors of war. The so-called emotional factors of war are how many emotional factors there are in war. Li Junxian said.

"Jun Xian, is there still an emotional factor in the war?" Li Shimin asked.

"Yes! In barbaric times, wars may often be waged because of a word from the chief. Even, the reason for the war was just that the other party said the wrong thing, which made a certain leader feel very dissatisfied, so he immediately started the war. Li Junxian said.

"It's really a faint king, the ancients, the lord should not be angry and raise a teacher. This kind of person who fights because of a moment of anger is definitely a faint king! Li Chengqian said suddenly.

When Li Shimin saw Li Chengqian's answer, he couldn't help but nod secretly. Because Li Chengqian's answer was very satisfactory to him, he understood the factors that could not be easily started. Although Li Shimin won the world on horseback, he didn't want his son to rule the world on horseback. Li Shimin was very satisfied with Li Chengqian, so now he has also made him the crown prince.

"His Royal Highness the Crown Prince is right, the ancients said, 'The Lord must not be angry and raise a teacher', this sentence is to expound the concept of war between civilized people and barbarians. The more savage people are, the more emotional factors there are in the war. And civilized people, they have to think about more. For example, the financial strength of one's own country, whether it can win this war, and what are the chances of victory. Even, what kind of impact will the victory and defeat have on the people of their own country. These are all things for civilized people to consider. We, the Han people, as early as the era of the Xia, Shang and Zhou dynasties, have broken away from ignorance and become a civilized people. The war of civilized people is more rational, it is a kind of rational struggle. Li Junxian said.

Li Junxian then explained a lot to them, such as the benevolent factors in wartime, as well as the causal relationship in various aspects of wartime, and various political patterns. Finally, Li Junxian even explained that war is actually a continuation of politics, and it is another violent means used after the problem cannot be solved by political means. And because of this, war is subordinated to politics.

Li Shimin also instructed the eunuch next to him to quickly write down what Li Junxian said, so that he could review it in the future. Li Shimin has already admitted this Li Junxian's military level in his heart, after all, if he can explain the word war in such a simple way, he is not an ordinary person. And Li Shimin didn't know that Li Junxian's profits were all learned from the "Theory of War" of later generations.

Li Junxian also read the theory of war of Sun Tzu's art of war, which is known as the West, in later generations, and he also read the content of the opening chapter. The theory of war explains the essence of war and the various means. From the perspective of Li Junxian, an outsider, his most essence is the explanation of the essence of the war at the beginning. In fact, many military scientists can write about the content of explaining the means of warfare. As for the contents of the opening chapter, Li Junxian personally believes that he cannot write without a deep understanding of the war.

And this theory of war was also compiled by Clausewitz of Germany when he gave a lecture to the crown prince, but now Li Junxian actually uses it to give lectures to the crown prince, which has to be said to be a coincidence.

However, Li Junxian only intends to explain the essence of the previous part of the theory of war, because the latter content is not in line with this era. The content behind the theory of war is the theory of war in the era of firearms, which is inconsistent with the ancient theory of war. There is a big gap between the war in the era of firearms and the war in the era of cold weapons, so it is not possible to use the war theory of the first era to explain the war in the era of cold weapons in ancient times.

After Li Junxian finished explaining, Li Shimin suddenly asked: "Junxian, with your content, you are no less than your grandson!" ”

Li Shimin is still very knowledgeable, and just after listening to these arguments about war, he immediately thinks that this is no less than his grandson. In other words, Li Junxian and his grandson are on the same level.

"Your Majesty, how dare the minister compare with the Soldier Saint?" Li Junxian said modestly.

Li Junxian also understands Li Shimin's thoughts, the theory of war is known as the Western Art of War in later generations, which is enough to show that it is not far from Sun Tzu's Art of War. And so many military scientists in later generations have recognized this statement, which shows that Clausewitz is no less than Sun Wu in military theory. Of course, Li Shimin is also a qualified or even excellent military strategist, and of course he can see that these theories of war are no less than Sun Tzu's Art of War.

"Jun Xian, you don't have to be modest, although you may not have the reputation of a soldier saint at present, but I believe that if you also write an article on the art of war, it may also be able to be passed down through the ages. When the time comes, you will be the soldier saint of my Tang Dynasty. Li Shimin said excitedly.

Li Shimin is also excited! If there is a soldier saint in Datang who is no less than Sun Wu, it will also add glory to the Datang country! It is impossible for a country to have only an emperor, but also a very large number of outstanding talents. Now that Li Junxian is clearly a talent, if he doesn't catch it quickly, then Li Shimin is not worthy of being an emperor.

"Your Majesty, the minister intends to use this lifetime to perfect this book of war!" Li Junxian said.

Li Junxian is planning to delay time, anyway, the time of his life is very long, are you afraid that it will not be delayed enough? Li Junxian's own family knows his own affairs, and he is playing with the beginning of the war theory, but if he wants to write a military book, then Li Junxian is not qualified enough! And the military theories that Li Junxian read in later generations are also talking about the era of firearms. And Li Junxian only knows a little about the war in the era of cold weapons, and he is not very familiar with it. If Li Junxian is asked to write about the war in the era of cold weapons, I am afraid that he will be blind.

"Okay, well, don't be in a hurry, it's not so easy to write a military book. Okay, now it's time for you to explain the art of war to the prince. In the future, you will be responsible for explaining the art of war to my prince, and I hope you can teach everything you know to my prince, and don't hide your secrets! Li Shimin said.

"Command!" Li Junxian said.

;