The two days passed quickly, and the people attending the meeting had in-depth and enthusiastic discussions on every battle in which the Youzhou troops participated, and under the intentional guidance of Liu He and Guo Jia, they drew many conclusive views and opinions from them, which were of inestimable value and significance for guiding future operations.

For example, around the defense of Macheng, everyone came to three very important conclusions.

First, the construction of long wall fortifications on the border line alone could not fundamentally resist the nomadic cavalry, because as the defense line continued to extend, not only would it cost a lot of manpower and material resources to build fortifications, but also disperse the limited forces, with the result that the overall superior force would become a disadvantage in every part.

Second, relying on a sturdy and fire-resistant van formation, combined with a certain number of strong crossbowmen, longbowmen, sword and shield soldiers, and pikemen, it was completely possible to form an effective defense against the Hu cavalry, making it difficult for them to occupy an advantage in the open area. In view of this, in the future, Youzhou should further transform all kinds of vehicles transporting grain and grass to make them have more powerful dual performance of transportation and defense, and if it wants to march into the northern grassland, it should first build roads that can be used by vans, and rely on this kind of vehicle formation to ensure the logistics and transportation of the army.

Third, the only feasible way to deal with the guerrilla tactics of the Hu people in the north is still to rely on their own cavalry army, which also uses guerrilla tactics to constantly encroach and harass the nomads, so that they can never develop animal husbandry with peace of mind, and eventually weaken until they are destroyed or annexed by assimilation.

Later history has repeatedly proved that before the development of thermal weapons to a certain stage, before the emergence of modern mechanical armored troops, the best way to deal with the northern rangers is not to build the Great Wall of China for passive defense, but to build a powerful cavalry army, strategically take the initiative, with a steady stream of logistical support from the rear, and finally eliminate the enemy in the northern grassland!

There are many similar conclusions. For example, Zhao Yun, who had already used cavalry tactics to the point of perfection, very calmly put forward the conclusion that although the cavalry was strong, it would not be able to serve as the main force in future operations to Jizhou in the south or westward to merge states. Zhao Yun believed that strongholds such as Baideng City, Jinyang City, Yecheng and other well-defended city strongholds, if cavalry were used as the main force to attack the city, it would not only cause huge casualties, but also be difficult to win.

Zhao Yu, as the commander of the cavalry guard, can have such a clear understanding of the use of cavalry, which once again proves his calmness and wisdom.

Zhang He agreed with Zhao Yun's viewpoint and further put forward a suggestion that we should seize the time to develop various large-scale siege weapons. Zhang He believed that with the exquisite and sharp design of siege equipment, not only could the casualties of the siege infantry be greatly reduced. At the same time, it can also break through the enemy's city in a relatively short period of time, without causing too much burden on your own logistics supply.

Liu He very much agreed with the views of Zhao Yun and Zhang He, and he demanded that the generals present must get out of the complacent and arrogant thinking that the Youzhou cavalry is invincible in the world, and in the future they should study more about how to carry out tough battles, and often organize soldiers to conduct actual combat drills to improve the proficiency of the officers and men in siege operations.

Liu He also gave a clear reply to Zhang He's suggestion that Youzhou should develop more powerful and sharp siege equipment, and he told the participants that as early as a year ago, the weapons workshops in Macheng and Jicheng began to secretly develop several large-scale siege weapons. And with a breakthrough, it will definitely come in handy when attacking Yuan Shao's forces in the south.

After learning about this from Liu He, everyone gained more confidence, and at the same time had a better understanding of Liu He's long-term vision.

Liu Hui, who attended the meeting, briefed everyone on the experience of the Wuhuan Lieutenant's Office in how to coordinate military and civilian affairs in recent years. Xu Miao introduced his successful experience in converting captives and surrendering troops, Tai Shici and Xian Yufu introduced their experience in fighting against Yuan Shaojun, Guo Jia and Zhang He introduced their experience in making full use of various terrain to arrange troops, and Tian Chou taught everyone some methods on how to send scouts to infiltrate......

In such small-scale, high-level meetings. In order to show their abilities and abilities, everyone is trying their best to participate in the analysis and discussion of each topic, so that everyone can learn from each other's strengths. Learn many useful lessons from the words of others.

This is precisely the purpose of Liu He's analysis of all past wars in the first phase of the meeting. In terms of accumulation of knowledge, it has never been a simple matter of one plus one equals two, but that one plus one is greater than two; through this kind of face-to-face debate and distinction, we can not only learn from each other's strong points and make up for each other's weaknesses, but also promote communication and exchanges between the generals of various armies, which will have a far-reaching impact on the joint operations of large corps in the future.

Liu He never worried that the important civil and military generals under him would pose a threat to his status when they got together, because he always stood at the highest and farthest place as a mentor, even if he was as resourceful as Guo Jia, because of the limitations of the times, his understanding and views on many issues were not as thorough as Liu He, so his core position as a leader could not be shaken by others.

After the war analysis meeting was over, Liu He asked Cai Yan to sort out all the conclusive contents that night, and then several scribes copied more than a dozen manuscripts together and distributed them to the participants, as important reference materials for guiding the battle in the future. Although Sun Li was in charge of the perimeter guards, as the deputy general of the Dragon Tiger Guard, he also got a manuscript, and he put it away as a treasure.

On the morning of the third day, the meeting entered the second phase.

Before the formal meeting, Liu He ordered people to bring in a large volume of drawings, a stack of books, and more than a dozen boxes, and then distribute them according to the head.

Liu He opened a drawing, spread it out on the long table in front of him, and then said to everyone: "This is a map of the situation of the Han Dynasty drawn by the Military Intelligence Department in the cost of dozens of brothers' lives for half a year, and the map is detailed to plot the specific locations of important mountains and rivers, passes, lakes, roads, swamps, and deserts where all parties are entrenched. ”

"The book with the vermilion cover in front of you is some specific information about the forces of the various roads that the Military Intelligence Department has probed and sorted out, because our current strength is limited, and we are not able to send more spies to remote areas far away from Youzhou, so the closer to Youzhou, the more detailed the information and the higher the credibility. In the future, you should attach great importance to the matter of intelligence espionage and collection, and do your best to provide more accurate and reliable information to the Military Intelligence Department of the Command Office within the scope of your conditions and authority! ”

"The name of the utensils contained in this sandalwood box is 'clairvoyant mirror', now please open the box, imitate my movements and hold it in your hands!"

Except for Guo Jia and Tian Chou, everyone carefully took out the clairvoyant mirror in the wooden box in front of them with a curious expression.

"Let's go, everyone come with me to Dengnan Beacon Tower!" Liu He took the lead in walking out of the conference room with a clairvoyant mirror.

On the beacon tower in the south of Juyong Guan, a group of civil and military generals with distinguished status opened the covers at the front and back of the clairvoyant mirror according to Liu He's demonstration, and then looked towards the plain area outside the mountain.

Next, everyone discovered a new world from the magical clairvoyant mirror.

Even Liu Hui, who had always been a steady elder, couldn't help but let out exclamations and exclaims, not to mention younger generals such as Xian Yufu and Xu Huang.

Half an hour later, everyone returned to the conference room with a look of excitement on their faces, holding clairvoyants that were more precious than treasures.

Liu He said with a serious face: "Everyone, you have already mastered the use of this thing, I believe that I don't need to say more, you also know what the effect of this thing will be if it is used against the two armies." The clairvoyant mirror is a top-secret thing in my Youzhou, and there are only a dozen of them at present, and they are never allowed to fall into the hands of outsiders! I just have one request for you, and that is to collect and use this object as much as you love your eyes! ”

Zhao Yun spoke first and said, "Childe, don't worry, even if Yun gives up his life, he will never let this thing fall into the hands of the enemy!" ”

Liu He was taken aback by Zhao Yun's words, and hurriedly corrected and said: "Zilong's words are serious, although this thing is precious, it is still far inferior to everyone's lives!" If you really encounter an unpredictable situation, you can smash it with a blunt instrument such as an axe and hammer, and do not sacrifice your life to protect it. ”

Then everyone will smile and feel warm in their hearts.

"Alright, now that the topographic map, intelligence manual, and clairie mirror have been distributed to you, let's get to the bottom of the big monsters and small monsters and weigh them!" Liu He waved his hand and beckoned everyone to sit down again for the meeting.

"First of all, let's analyze the strength of Gongsun of Liaodong. Gongsun Du, whose name is Shengji, is forty-six years old and a native of Xiangping, Liaodong. He has two sons, the eldest son, Gongsun Kang, and the second son, Gongsun Gong. Gongsun Dushao moved to Xuansu County with his father, and was a minor official at the beginning, and was dismissed after being promoted to Shangshulang and Jizhou Assassin History. In the sixth year of Zhongping, Gongsun Du was recommended by fellow villager Xu Rong and was appointed by Dong Zhuo as the Taishou of Liaodong. After Gongsun Du took office, he strictly implemented strict punishment and strict laws, cracked down on Hao's strong and powerful forces, and made the order administrative through, and his wings gradually became fuller. In the first year of the first peace, Dong Zhuo troubled Luoyang, and the power of all roads had no time to look eastward, Gongsun Du took the opportunity to establish himself as the Marquis of Liaodong and the pastor of Pingzhou, and attacked Goguryeo in the east, attacked Wuhuan in the west, took the Liaodong Peninsula in the south, and took the Donglai counties of Qingzhou across the sea; He also recruited talents, set up a museum to open a school, recruited displaced people, and traveled overseas, as if he was the king of Liaodong......"

Tian Chou, who was in charge of introducing the situation, meticulously reported to everyone the information collected by the Military Intelligence Department on the strength of Gongsun Du in Liaodong, which involved the process of Gongsun Du's family's fortune, Gongsun Du's current subordinates and troops, and Gongsun Du's control of the territory's population, people's livelihood, climate, and products.

While listening to Tian Chou's report with peace of mind, everyone was not only in awe of the rigor and meticulousness of the Military Intelligence Department of the Jicheng Command Administration, but also had a full understanding of Liu He's practice of listing the Military Intelligence Department as the first department of the Command Department. (To be continued......)