(Thank you for the Alliance! Thank you Zhao Wuxiu 2014, ufgw, x_zh, riding ant to suppress the elephant, a, sutchin, Zuoqiu Khanru, Duai Hongxiu book friends for support.)

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In February of the fifth year of Jian'an, Ma Han led a group of subordinates, Jia Xu, Guo Jia, Xu You, Xu You, Le Jin, Zhang Liao, Li Dian, Gao Shun, Yu Jin, Zhang He and others gathered in Juyeze, Yanzhou to inspect the navy's exercises.

This navy was backbone of the three thousand Danyang soldiers and one thousand Shanyue soldiers rescued by Ma Han himself, and the Mi brothers helped the two thousand Huai and Yang disciples, plus nearly a thousand Nanyang navy soldiers. Finally, thousands of sailors and shipmen were recruited from Xuzhou, Huaibei and other places to form a 10,000 naval army.

This navy was just the main force of the southern expedition of Ma Han. In fact, his real navy was the Bohai Army. However, this navy far away in Liaodong had never appeared in the Jianghuai River and people did not recognize it at that time, so that was his trump card.

Even so, the power on the surface was already quite amazing. You should know that at this time, whether it was Sun Ce from Jiangdong or Huang Zu from Jiangxia, the two powerful warlords south of the Yangtze River, their pure naval forces, boatmen, boatmen, etc., less than 10,000. Only Liu Biao from Jingzhou, had a naval force of more than 30,000, and his strength was the highest among the Han Dynasty.

Like Cao Cao in history, after unifying the north, what Ma Han had to do next was to fight in the southern expedition. As a "experienced person" in history, Ma Han certainly knew what the result of Cao Cao's southern expedition was. Therefore, in the few months after pacifying the north, Ma Han repeatedly compared Cao Cao in another time and space with himself in this time and space. At the same time, he also used war chess to deduce the similarities and differences and battle situations of the two time and space. After months of argumentation, the following results were obtained.

Cao Cao fought south, Sun and Liu joined forces, and the war between the north and the south. Taking the Battle of Red Cliff as a turning point, Cao Cao's failure generally has these aspects:

First, the northern soldiers were not familiar with water warfare. They left their saddles and horses, fought with boats and oars, and competed with Wu and Yue. This is a typical example of using their own shortcomings and attacking the enemy's strengths. As a master of military tactics, Cao Cao would not misunderstand this principle. So the method he adopted was to use the surrendered Jingzhou naval army to fight against the Wu army, but unfortunately he was wrong. Before the Battle of Red Cliff, Cao Cao commanded the Jingzhou naval army to fight with the Wu army, but the Jingzhou naval army was defeated. That's why Cao Cao asked for warships, but it was because of this that he was attacked by the enemy's fire. After all, it was caused by the lack of naval army.

In fact, before the southern expedition, Cao Cao dug a huge pond in Yecheng and drew Zhang River into it. It was used to train the naval army for Xuanwu Lake. It was just that the naval army went from scratch to form combat effectiveness, and in a few years, after many actual battles, how could it be possible to truly form an army? So to put it bluntly, Cao Cao's naval army was just a group of water soldiers, not real tower shipmen, which was the same as "horse infantry" and cavalry.

There is another problem here. The Cao army naval army and the Jingzhou naval army seem to have many people and ships together, but one side surrendered, and the soldiers hesitated. In addition, the time was too short to be able to get along with the Cao army. As a result, the two forces not only failed to form a joint force, but instead restrained each other. The power was dispersed, and the battle was half the result with twice the effort.

The second is epidemic disease. The Cao army marched south in July. It was midsummer and the hot summer was the season when infectious diseases were high. Cao Cao suffered a great loss in this regard. Before taking on the battle, he lost nearly half of it. Originally, Cao's army's military strength was nearly twice as strong as the Sun and Liu coalition forces, but after being tortured by the epidemic, he lost all the strength advantages.

Third, Ma Chao and Han Sui were in Guanxi during the reign of time, which was a threat to Cao Cao. Before Xiahou Yuan pacified Guanxi, the Guanxi army was always a threat to Cao Cao. Not only did he lose Cao Cao's troops in the southern expedition, but he also caused the defeat of Chibi, so he had to return to the court to take charge of the center, for fear that the Guanxi army would take advantage of the situation.

In addition, there may be four, five, and six other items, but they have exceeded Ma Han's cognition. With his limited knowledge of the Three Kingdoms and combined with the previously collected information from the Jingxiang and Jiangdong areas of Hawkeye, Ma Han can only summarize these few items.

So, what about the Mars in this time and space?

First of all, the navy army. Ma Han established his own water army very early, the Bohai Army. This is not only a navy army that can fight against the wind and waves, but also a navy that can sail and fight in the near-shore. Not only that, he also established a branch base and established the Yuzhou Mountain Army.

Since its establishment, these two navy have been mostly engaged in wars to eliminate pirates, and have also undertaken the heavy responsibility of transporting troops and grain from Liaodong to Luoyang thousands of miles away. These thousands of miles of transport of money and grain naturally require fighting with the bandits and lakes along the route, and have accumulated rich valuable experience in rivers, lakes and sea battles and long-range transportation.

From the beginning, Ma Han focused his attention on the sea, which was far from Cao Cao, who had no time to pay attention to the rivers. Moreover, Tao Qian was moved by Ma Han's grace to save Xuzhou for the second time and to make a living for his two sons, leaving Ma Han with a generous legacy - 5,000 Danyang sailors and more than 200 ships of the storm.

This powerful navy had no obvious effect when Ma Han fought for the northern power in his early years. He was even forced to participate in the Battle of Sishui by Yuan Shu, and was almost completely destroyed by Lu Bu. For this reason, Ma Han went to Xuzhou in person, willing to take a risk to fight with Lu Bu and take the navy from the battlefield of life and death.

For this reason, Ma Han was grateful and loyal to the Danyang Navy. His efforts back then were the best rewards today. This navy has completely accepted the master, and its loyalty may not be as good as the Dragon Wolf Army, which was born in Liaodong, but it is even better than the Luoyang New Army.

The main combat force of the Danyang Navy, more than a thousand Shanyue soldiers, has followed Ma Han and Chen Dao from the Battle of Xia Pi, fought south and north, from Huaibei to Luoyang, and has long integrated into the Dragon Wolf Army and become a force that cannot be ignored.

This navy army, born and raised in Danyang, is familiar with the scenery of the Jianghuai River and has the highest water combat power on the water. It is completely classified as a Marhan, with strong cohesion and free command. This is by no means comparable to Cao Cao in history.

Second, about epidemics. It is obvious that only the army infantry and cavalry are really affected by the epidemic, not the navy. In the southern expedition, the navy is the fist and the army is the iron arm. The two complement each other and are indispensable. Most of the Dragon Wolf Army are northern soldiers, and there are many soldiers from the extreme north. The miasma fever in Jinghuai is indeed a big problem for them.

There are four solutions for Ma Han: First, we will send troops to Jianghuai one after another, and we should not place tens of thousands of people at a time. The more people, the greater the chance of the outbreak of the epidemic; second, we will push the war time to autumn and winter, and stagger the epidemic seasons as much as possible; third, we will carry out popularization of health and epidemic prevention knowledge in the army in the southern expedition; fourth, we will find good doctors and prevent them in advance.

Ma Han is not a doctor, but he still knows basic epidemic prevention knowledge in later generations. For example, water must be boiled and drunk, excrement must be buried, quicklime is sprinkled in the barracks, non-military operations cannot be wading at will, etc. For a good doctor who treats infectious diseases, Ma Han does not need to post a list to seek talent, but directly designates one person - Zhang Ji and Zhang Zhongjing.

Zhang Zhongjing, the first person in the history of traditional Chinese medicine to prevent and treat infectious diseases, was revered as the "Medical Saint" by later generations. This is a person who wrote the texts in primary and secondary schools. Ma Han naturally knew about it, but he did not know that Zhang Zhongjing was actually a person in the late Han Dynasty and the Three Kingdoms period, and he did not know that this person was under his nose.

Speaking of Ma Han's discovery of Zhang Zhongjing, it was also an interesting thing. It was the end of the fourth year of Jian'an. Ma Han had just returned from Yanzhou. When he went to court, he saw Xu Youwei's intentions. After asking, he found out that he had just sent a friend from the same county to Changsha as the chief clerk.

Ma Han was not interested in caring about other people's private affairs, but just advised him: "Don't drink before going to court. This is understandable, so I won't be an example."

Although Xu You was crazy, he was quite afraid of the general who had disguised him as if he had done nothing. He hurriedly gave a salute to explain the truth: "I didn't want to drink, but when I arrived at Nanguanting, there were three elders of Tingyi and brought new wine to him to send him to him. I thanked my brother Zhongjing for saving his elders of Tingyi and insisted on toasting, so..."

Treatment? Ma Han was slightly surprised: "Is this Changsha chief clerk a doctor?"

Xu You nodded: "Zhongjing has the ability to rejuvenate his youth, and he also treated the emperor."

Ma Han has rarely stayed in Luoyang recently, and is not very clear about some unimportant changes in the imperial court. He frowned and thought: "Zhongjing... This word sounds familiar, what is his name?"

"Zhang Ji and Zhang Zhongjing."

He said that Zhang Ji didn’t know much, but said that Zhang Zhongjing... Ma Han didn’t let Xu You go to court, so he directly pulled him into his own general’s exclusive double-shaft carriage and told him: “Come back Zhang Zhongjing! Even if you chase him to Yique Pass, you have to chase him back!”

Xu You was almost thrown into the car by Ma Han, and he was dizzy and said, "General, this is, is it because Zhongjing offended..."

Ma Han stretched out his palms and slapped the two horses' buttocks, and ran forward with a long neigh. Ma Han stood at the gate of Que and said loudly: "Finding Zhang Zhongjing, tell him that he doesn't have to go to Changsha to be the chief clerk. I want to deprive him of the general's shogunate."

The General Shogunate's Office discusses Cao. This position is not high, with a salary of only 400 s, but it is a popular position - the General Shogunate's Office. However, it is not difficult for a high-ranking official who meets and discusses with the General in a year or two to reach a thousand stone or even two thousand stone.

Xu You was surprised and happy when he heard this, and he couldn't help but run out of the south gate with the carriage and horse.

In this way, Zhang Zhongjing became a member of the Ma Han shogunate, nominally speaking, Cao (mainly discussing matters), and was actually fully responsible for the field medical camp of the Dragon Wolf Army. Later, the soldiers of the Dragon Wolf Army called it a "medical order". Over time, the Dragon Wolf Army had another new position: the Military Medical Order.

It can be said that the two biggest troubles Cao Cao encountered were not troubles for Ma Han. As for the Guanxi Army... the Ma family army was a big disaster for Cao Cao, but it was Ma Han's backing pillar, which was even more incomparable.

It was precisely because of analyzing his advantages and making sufficient preparations that Ma Han dared to decide to launch the southern expedition in the fifth year of Jian'an, which was eight years ahead of the Battle of Chibi in history.

This year, Liu Biao was in his prime.

This year, Sun Ce was at its peak.

This year, Liu Bei was in full swing.

This year, Cao Cao rose again.
Chapter completed!