The water network in the south of the Yangtze River is dense, the swamps are dense, the roads are difficult, and the transportation is difficult, no matter from which point of view, it is not suitable for the mobile operation of the large cavalry corps.

On the contrary, these places are suitable for small groups of cavalry to crisscross and perform some battlefield auxiliary tasks, and the main force is definitely the infantry army and the sailors.

Most of the generals under Liu Bei grew up in Jiangbei, grew up in grasslands and desert areas, and were better at fighting in plains and grasslands, good at using infantry and cavalry, and were not very familiar with naval operations.

So in their opinion, Liu Bei should try his best to choose generals from the south, or generals from the seaside, preferably from Shuzhong and Qingxu, even if they don't, they should try to choose those with relevant experience, why choose Guan Yu?

Guan Yu didn't have any experience in southern warfare.

Except for trust, cronies and other reasons, everyone can't think of anything.

Although Liu Bei's choice of Guan Yu was appropriate from all angles, out of a sense of responsibility, the young Guo Jia and Yang Xiu still raised objections to Liu Bei.

"Junhou, although General Guan is good at fighting, he is not familiar with the climate in the south of the Yangtze River, and he is not familiar with mountains, swamps, hills, and water networks.

"Junhou, General Guan is brave and good at fighting, but it is indeed not suitable to be appointed as the head of the Jiangnan Military Region, and I hope that Junhou will think twice.

Others were afraid of Liu Bei's power and didn't dare to say it, but the young Yang Xiu and Guo Jia lacked some fear, and had a sense of responsibility and enterprising, wanting to show themselves to Liu Bei.

Of course, Liu Bei will not be unhappy about this.

Everyone's objections were also taken for granted in his opinion, because no matter who they were, they would not have thought at this time that Guan Yu, a northern man who was good at cavalry fighting, could actually give full play to his military ability in the south of the Yangtze River.

No one knows how Guan Yu, who grew up in the north, learned to use multi-arm joint operations on the terrain of the south of the Yangtze River, but Liu Bei has always believed that this is an important reason why Guan Yu was able to become a famous general in the world.

What Liu Bei can be sure of is that the historical materials of the entire Shuhan Entrepreneurship Group should have been premeditated and organized.

The wars and achievements experienced by Liu Bei, Guan Yu, and Zhang Fei must have been cut in an organized manner, and it is unknown when they began to be cut.

The image of what they recorded in the historical records is completely incompatible with the evaluation of their contemporaries.

People of the same era have a very high opinion of Guan Yu and Zhang Fei, and some people with high status are the same, the most intuitive point is that after Guan Zhang, the world talks about generals, fierce generals, and generals of bears and tigers, and they must be called Guan Zhang.

Any generals and generals in later generations will think that they are related to Zhang Zhiyong.

However, there is little record of Guan Zhang's own achievements, and it is unclear why they are so highly rated.

This sense of disobedience, especially the period from Liu Bei's entry into Shu to Guan Yu's Northern Expedition.

For nearly ten years, Guan Yu's own biography did not write about any war-related experiences, but the generals of Cao Wei took turns stationed in Jingzhou at this stage, and there were many records of promotions, demotions, transfers, and wars with Guan Yu.

However, none of these records clearly describe the causes, processes, and final results of the war, and only the frequent records of transfers and positions make it difficult not to think about them.

In those more than ten years, how many big battles and tough battles did Guan Yu fight with them?

The only thing that can be determined is that in those more than ten years, the Cao Wei regime definitely did not stare at nothing, they launched many military attacks in Jingzhou, and the Eastern Wu side was not completely without action, there were not many big moves, and small actions continued.

At that time, only Guan Yu was guarding Jingzhou, and the other forces under Liu Bei had basically entered Yizhou, which was equivalent to Guan Yu guarding the four battles of Jingzhou alone, and facing the all-star lineup of Cao Wei and Dongwu at the same time.

In the end, he was even able to launch a strategic offensive with 30,000 Jingzhou soldiers, causing Xu Du to be shaken, and Cao Cao even had to move north to avoid the edge.

It's dangerous, and it's really not something that a few strokes can write about.

Finally arrived at Guan Yu's battle of Weizhen Huaxia and the final battle, there was really no way to delete it, there was really no way to avoid it, and it was directly related to Guan Yu's defeat later, so this last glory and fleeting were retained.

And in the past ten years, how many battles did Guan Yu fight? How many famous generals of Cao Wei have played against each other? The result? What was the combat experience like?

Liu Bei didn't know.

But he believed that [Megatron Huaxia] came from the enemy's evaluation of him, and it was not something that could be obtained as simply as sitting in a predicament.

In those more than ten years, Guan Yu held Jingzhou alone, not only to maintain a strong defensive line, but also to maintain the blow to Cao's army and the deterrence of Sun Wu in the midst of ups and downs, and it was really not easy to maintain his presence in Jingzhou in the midst of a rather bad strategic disadvantage.

His final overturn was also somewhat accidental, a little bit of a fateful feeling, not like a defeat on the battlefield, more like a defeat in the hearts of the people, as a military general, he has done everything he can, and quite competent.

It is precisely because of this that Liu Bei decided to hand over the Jiangnan Military Region to Guan Yu to be in charge.

Because under his rule, there will be no problems with people's hearts.

Compared with the Xishu Military Region, the Jiangnan Military Region is the area where Liu Bei believes that war will inevitably occur in the next two or three years, and this is the area where Liu Bei's foundation is the most shallow, and it is also the area where local forces are the most stubborn, conservative, and xenophobic.

Liu Bei still had tens of thousands of troops and people willing to cooperate in Yizhou, as well as a group of Yizhou locals who supported him, and the situation in Yizhou was far from as bad as the imperial court analyzed.

However, in Jingzhou and Yangzhou, there are only three battalions that have just been established not long ago, and they have no foundation in Jiaozhi.

It is even difficult to say what kind of opinion and vigilance the locals will be caused by the establishment of the Jiangnan Military Region and the stationing of the army, and whether or not the army can be stationed smoothly is a serious question.

For such a situation, Liu Bei needs a general with strong ability to resist pressure and sufficient military ability to support the whole situation, to deter the Jiangnan region, manage it well, and even when Dutian, in the face of a full-scale rebellion, he can also attack and suppress it in an all-round way.

Under the terrain and climate environment that he is not familiar with, and in the absence of the support of his friends and the possibility of enemies on all sides, he can do this, in addition to Liu Bei himself, he can only trust Guan Yunchang of Megatron Huaxia.

"I chose Yun Chang, not just out of the thoughts of my cronies, Dezu, Fengxiao, I know your worries, but you can believe me, you can also expect, I believe, Yun Chang will not let me down.

Liu Bei made a final decision and decided to hand over the responsibilities of the last person in charge of the Jiangnan Military Region to Guan Yu. Guan Yu, Zhang Fei, Zhao Zhao, Huang Xu, Sheng Liu. These five people were determined to be the supreme leaders of the other five military regions except the Central Military Region, and they would each command the army directly under their own command and the army under the command of the rest of the lieutenant generals, commanding 30,000 or 40,000 soldiers and horses, guarding one side and keeping the other side peaceful.

In order to highlight the status of these five people and establish their superior and subordinate identities to the rest of the generals, in September of the fourth year of Jian'an, Liu Bei became the son of heaven and asked for a general.

He hoped that Guan Yu would be the general of Zhennan, Zhang Fei would be the general of Zhenxi, Zhao would be the general of Zhenbei, Xu Huang would be the general of Zhendong, and Liu Sheng would be the general of Zhenman.

These five generals are above the rest of the miscellaneous generals and Zhu Zhonglang generals, and they are on the same level as the four generals before and after, and they are set up as the middle two thousand stone generals, and they are established as permanent generals.

Liu Xie, the little son of heaven, was inaccurate in his request to Liu Bei, and a quasi-word ran throughout, so the status of the five generals in Liu Bei's army was determined after Liu Bei.

According to the results of the previous discussion, Guan Yu guarded Jiangnan and commanded three armies, Zhang Fei guarded the northwest and commanded three armies, Zhao Zhao guarded the northeast and commanded three armies, Liu Sheng guarded Xishu and also commanded three armies, and only Xu Huang commanded four armies in the Central Plains.

Five external military districts were established in this regard.