Xiao He said to Liu Bang: "Although the King of Han can rest assured, during the expedition, the ministers will guard Guanzhong Bashu. ”

In this battle, Liu Bang will go out with him, but he will entrust the military command to Deng Yulong. He once asked Deng Yulong how to fight after secretly Chen Cang, Deng Yulong only said some generally, he can say it in terms of grand strategy, as for how to command the battle as a commander-in-chief, he must maintain a proper sense of mystery.

Xiao He said to Deng Yulong again: "General, you just have to command the army with peace of mind, the supply of grain and grass during the expedition will not be less, and it will be up to you to capture Guanzhong." ”

In the historical dispute between Chu and Han, Xiao He has always sat in the rear, ensured the supply of grain and grass for the front-line troops, and managed the large rear of Guanzhong in an orderly manner.

Liu Bang said: "The prime minister is too modest, and the victory of the Han Dynasty requires both the general to lead the three armies in front, and the prime minister to sit in the rear." ”

He talked and laughed with the two courtiers.

The meeting was short-lived, Deng Yulong and Xiao He left the palace, and he returned to the mansion under the guard of his own soldiers.

"General..."

When he returned to the mansion, the maids and servants saluted him.

Deng Yulong held a large square cloth in his hand and walked directly into the study, followed by Chunlan and Xing'er.

"Hang this map on the wall."

The two women found a rope, tied a corner of the map, and hung it on the wall, revealing a large map about three meters in length and width.

"This map is so weird!"

Apricot was surprised, she had seen some maps before, but she had never seen such a large map, and the features, words, and marks on the maps were completely different.

Although Chunlan had also seen the map, she was illiterate, so she felt that the map was very novel.

Both women were intrigued, and their eyes stayed on the map.

"General, this is a topographic map of Guanzhong! Why are the markers and words in the diagram so strange? Apricot asked, puzzled.

She herself is a Qin person, she was born in a cultural family of Qin, and she still knows some about the outside world, and she still knows the general topography of Qin, such as Hangu Pass, Tongguan, Liyang, Xianyang, Chencang, Qinling, Hanzhong, Dabashan, Bashu These areas are roughly located in Qin, as well as the overall outline of the entire Qin territory, so as to judge that this is a map of Guanzhong.

This large map of Guanzhong was drawn by Deng Yulong a few months ago, and he specially asked someone to bring a large blank cloth, and then he drew the map himself.

The content recorded on this map is a combination of three factors.

First of all, it refers to the existing map of Guanzhong in the official office of this time and space;

Second, he asked the soldiers in the Guanzhong area (a small part of the army had joined the army after Liu Bang entered the Guanzhong) and asked them to describe the terrain of a certain place in the Guanzhong area that they knew;

Finally, Deng Yulong himself had a relatively comprehensive study of the late Qin, Chu and Han dynasties in modern times, including the specific process of the main wars and major events that occurred in this period, the topographical description of the main areas in this period in modern times, the abilities and character traits of the main characters in this time and space, the general scientific and technological level and cultural conditions of this period, and so on.

Deng Yulong drew this large map by himself by referring to the modern description of the topography of the various areas of Guanzhong in this period, and then combining the above two factors.

In this map, in addition to the cities, rivers, mountains, roads, etc., which use modern markers to draw the map, the text inside is also in modern simplified characters, which is very different from the small seal of this period.

The reason why I wanted to draw this topographic map of Guanzhong was to prepare for the battle to seize Guanzhong, and this map was specially for Deng Yulong to see.

"As the commander in chief of the three armed forces, this map was made according to my requirements, and those marks and words were used to make it easier for me to watch and remember."

Deng Yulong casually made up reasons to fool the past.

Xing'er just thinks that the general is really too different, not only does he talk and behave differently from others, he likes to play with some strange items, and even the map looks like this.

"You two stand down!"

"Yes"

The two girls walked out of the house and closed the door.

Deng Yulong was the only one left in the room, quietly, his brain was thinking, he was thinking about how to fight the battle commanded by himself.

In ancient film and television works in modern times, many times you can see a certain strategist who can defeat the enemy with a clever plan, and see the commander talking and laughing with soldiers, and the army under his command is invincible. But he rarely shoots why these people are so powerful, and rarely shoots the lot of basic work and efforts made behind it.

In order to strategize, a strategist needs to understand all aspects of the situation, including the situation of the side and the enemy, including the morale of the army, discipline, weapons and equipment, daily training, the ability of the commander and the main generals, as well as the personality characteristics, logistics support, grain production, the people's back, whether the monarch is virtuous, and so on, so as to make accurate judgments according to the situation and come up with targeted strategies.

As the commander-in-chief of the three armed services, the same is true.

The same is true of Deng Yulong, who first started with the basic work, and military training is an important part of it, and it is not so easy to do it well.

The other two links, the first is logistics support, if there is no super talent in internal affairs like Xiao He, Liu Bang's camp will definitely be much worse than now.

Second, there is the enemy's intelligence. Deng Yulong had already drawn out the geography of the mountains and rivers in the Guanzhong region in advance, as well as the troop arrangements of Zhang Han, Sima Xin, and Dong Peng, the morale of military discipline, and the situation of major military generals.

Since last month, Deng Yulong has been thinking about how to fight the battle, which involves many aspects.

For example, the Chencang Road, which is more than 200 kilometers long, is full of thorns and mountains, and 10,000 soldiers have opened up a road for the army and grain and grass to pass in a place where there is no road, and it will take at least half a month to go fast, and it may take a month to slow it.

For example, after passing through Chencang Road, how to capture Dasanguan and Chencang City? How will Zhang Han react? How to stop Zhang Han when he comes to the rescue? What should be the next step after taking Chen Cang?

As the commander of the army, Deng Yulong must consider the problem in an all-round way and make careful arrangements for this.

The battlefield is changing rapidly, and the development of the battle situation may be different from the original plan, Deng Yulong also tried his best to make two, three, or even four sets of plans, taking into account the possible variables as much as possible, and adopting different plans for different situations.

Adequate preparation before the war can be said to be equivalent to half of the success, and the other half, the commander's on-the-spot command ability can play a crucial role.

If, on the premise of understanding the situation of both the enemy and us, we judge that there is no possibility of victory, no matter how good the commander is, he will not be able to return to heaven.

Deng Yulong's battle in the battle of Guanzhong under his own command was assessed to be 90% from an objective and professional point of view, and if the on-the-spot command was not good, even if he had to be fully prepared, there was still a possibility of failure.