After Tai Shici's request for the battle plan was brought back to Yuan Tan by Xin Bi, although Yuan Tan was not very satisfied, he finally agreed after weighing the pros and cons.

Tai Shi Ci was too slippery, he insisted on only participating in water battles, never going ashore in land battles, and was only responsible for playing the role of bait to escort the grain convoy to Nanpi City through Zhangshui and seduce Cao Jun to intercept him.

Such a deployment made it impossible for Yuan Tan to carry out any small actions and successfully drag Tai Shici to carry the damage.

The Cao army fought in the north and did not form a naval army at all, at most there were only some grain ships. It is simply impossible to catch Tai Shici on the surface of the Zhanghe River.

And even if Yuan Tan wanted to pull the hatred between Cao Cao and Liu Bei, it would not succeed, and it would only offend one more ally, which would be harmful and useless - from Cao Cao's point of view, before Yuan Shao died, he hoped to invest all his energy in killing Yuan.

Even if Liu Bei's army is gone, as long as it is not directly under Liu Bei's own banner, saving Cao Cao face and a fig leaf, then Cao Cao will pretend not to know even if he knows. In this way, both sides are under multiple steps, which can delay the total outbreak of contradictions.

Those who think that "Cao Cao also wants to go to war with Liu Bei now" have ignored a key factor, that is, Yuan Shao has not lost his breath.

If Yuan Shao lost his breath, Cao Cao might have counted on "whether Yuan Shang and Yuan Tan would have a civil war in order to seize the throne", but now that Yuan Shao has not swallowed this breath, the civil war will not exist at all, and Cao Cao is not stupid, how can he be relieved at this time.

Since it is impossible to pull the hatred between Cao Cao and Liu Bei, why should Yuan Tan be a villain in vain? What's more, Liu Bei still has subsequent batches of military aid materials in his hands.

In later generations, even people like Uncle Dong who did illegal business, when they reprimanded the clansmen who made fake and shoddy products, they would say: "How can I have the face to give such things to customers?" Is this the last deal? Won't you do business in the future? ”

Any scene where there is a repetitive game requires integrity, how can you sell your teammates casually, otherwise how will you mix in the future?

In the end, Yuan Tan also agreed to deploy supporting tactics and improve the campaign plan on the basis of Tai Shici's plan.

He allowed Tai Shi Ci to only be responsible for the battle on the surface of the Zhanghe River, and did not need to go ashore, as long as Tai Shi Ci promised to be the first one.

The two sides also adjusted their troop deployment according to the final reconnaissance before the battle and the number of enemy situations.

According to the reconnaissance, Cao's army originally had 50,000 or 60,000 soldiers in the direction of the Bohai Sea, more than half of which were the old units of the Yuan army that surrendered in the Battle of Guandu and the Battle of Cangting, as well as quite a considerable logistical auxiliary army to transport grain and people.

However, after Le Jin and Xu Huang were transferred, the number of Cao Jun's besiegers in Nanpi was also reduced by more than half.

Now there are only seven or eight thousand people left in the old department of Cao Jun's descendants under Cao Hong, these are those who followed Cao Cao before the battle of Guandu, and their loyalty to the Cao family is absolutely reliable, and their combat power is also good.

There are also 10,000 or 20,000 Guandu Yuan Jia's army, that is, Zhang He and Gao Ran originally led the troops who surrendered to the enemy, and now they have turned their spearheads and come back to attack the old master.

The total number of Cao's soldiers was about 26,000, and after Cao Cao entered Hebei this time, the newly captured strong men, the newly forced landing recruits, and the grain transporters were added together with the soldiers, and a total of nearly 40,000 people besieged the city.

In Nanpi City, Yuan Tan left Zhang Nan to defend the city, and the initial army was less than 20,000 people, and after three months of fighting, casualties and diseases were temporarily reduced, and now there are less than 15,000 people left.

At the support points of the counties behind Bohai County, there are five or six thousand soldiers under the command of Wang Men who can enter the battle at any time. The management system can pull 20,000 new troops from Qingzhou, and it is also Yuan Tan's main force in Qingzhou.

In this way, not counting Tai Shi Ci, the main force of the Yuan army has about 40,000 soldiers, which is quite an advantage over the 26,000 people of the Cao army.

Tai Shici's side only sent 4,000 troops, which was 1,000 fewer than the Yuan family's smallest Wang Sect. But considering that Tai Shi Ci is traveling thousands of miles to help, it is impossible to bring more people in the first batch, and some people must be left to help Zhuge Jun guard his home in Langya County, and the ones sent by Liu Bei are all elites, which should not be underestimated.

Tai Shi Ci's troops in Langya were once as low as only 2,000 people, but fortunately, during the preparation period of most of the month at the beginning of the campaign, Tai Shi Ci could still ask Guan Yu for help in Xiapi, so that Guan Yu could send troops into Ju County and Zhu County in Langya County to share part of the pressure, and he could also seconded individual deputy generals from Guan Yu.

In the end, in order to ensure that nothing went wrong, Tai Shici seconded Tian Yu from Guan Yu to help in the war, and also pulled Chen Dao, who came with him, from Zhuxian to the Bohai front line to participate in the front-line battle-

Chen Zhi came with Tai Shici, but he didn't need to borrow it from Guan Yu. But Chen Zhi was initially assigned the task of defending the counties, because Liu Bei attached great importance to the feelings of the Zhuge family.

The third brother of the Zhuge family was put into Zhuxian as a county commander, responsible for the junction of the Yuan-Liu border. In order to further encircle Zhuge Jin and Zhuge Liang, Liu Bei of course put Chen Zhi, who was good at defense and guarding, in Zhuxian to show that he absolutely ensured Zhuge Jun's personal safety.

Tai Shici temporarily transferred Chen Zhi away, and Guan Yu sent another general Gao Shun to the counties to take over the defense, which could also ensure that nothing went wrong.

It has been a year and a half since Gao Shun surrendered to Liu Bei, but he did not have the opportunity to make contributions before. On the one hand, it is also because Gao Shun is more solemn and awe-inspiring, and he is not very greedy for merit and promotion. On the other hand, it is also because Gao Shun hates Cao Cao's camp.

The opportunity for him to vote for Liu was when the edict incident first happened. After throwing over, Gao Shun also needed to be worthy of his conscience and set up a person, so he always persuaded Liu Bei to go on a northern expedition to attack Cao, support the Han family, and avenge Dong Cheng and Lu Bu by the way.

But Liu Bei wanted to make a decision on Sun Ce first and cure the problem of his own belly and back being attacked by the enemy, Gao Shun could understand after hearing it, but said that he was unwilling to participate in the conquest of Sun Ce in Jiangdong, and was willing to help Liu Bei guard the border between Jiangxia and Lujiang and Cao Thief Runan County, and defend along the Dabie Mountains. In the future, Liu Bei will free up his hands to cut down Cao, so he will naturally do his best.

Liu Bei considered that the long border between him and Cao Cao occupied Runan County did need to be watched, and Gao Shun was willing to stay in this position that was not easy to take credit, and he would not object.

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Therefore, in the following year, Zhang Liao followed Guan Yu to make a lot of contributions to the battle against Sun, while Gao Shun only guarded the northern front, which can be regarded as "a good fighter has no outstanding merits". Cao Cao didn't fight for more than a year, just like the Huns didn't bother to attack when they encountered Li Guang guarding the border.

Today, Gao Shun's military rank is a whole level lower than Zhang Liao. In the battle to destroy Sun, Zhang Liao was already listed as a lieutenant general because of his great contribution to Sun Ce himself, and Gao Shun was only a captain.

Now that the south has been flattened, Guan Yu returned north from Yangzhou and returned to Xuzhou, and also introduced Zhang Liao and Gao Shun as generals and placed them in Xuzhou.

Guan Yu was personally in charge of the Xiapi County Defense District, Zhang Liao was in charge of the Donghai County Defense District, and Gao Shun was in charge of the Langya County Defense District.

The three generals lined up in a line, along the Yishui and Surabaya defense lines, the west of Yishui is Cao Cao's territory, and the east of Yishui is Liu Bei's. The two counties of Langya in the East China Sea are all bounded by Yishui, and Cao and Liu each account for half.

Although Yishui is not wide and deep, it is guarded by famous generals like Zhang Liao and Gaoshun, and they have been in Xuzhou for many years when they followed Lu Bu and are familiar with the terrain.

The seemingly weakest joint between Liu Bei and Yuan Tan is actually as safe as Mount Tai, and there is no need to worry about being "broken through and truncated by Cao Cao, and you can't take care of each other", and it will be no problem to transfer Chen to the front line.

When Chen Dao and Tian Yu met with Tai Shi Ci, it was impossible to go alone, they would always bring some personal soldiers, and the two of them each brought nearly 1,000 reinforcements, so that the scale of troops that Tai Shi Ci could mobilize in the end expanded to 6,000 people.

……

The sixth year of Jian'an, November 24.

More than half a month has passed since Tai Shici suggested the battle plan to Yuan Tan, and Yuan's army is fully prepared for a counteroffensive to relieve the siege.

At the same time, on the siege battlefield of Nanpi City, Zhang Nan had not yet made contact with Yuan Tan. Because Cao's army still very firmly surrounded Nanpicheng on all sides, there was no communication between inside and outside.

However, Zhang Nan was not affected by this predicament, and remained firm and unwavering.

He knew that Bohai County was originally wealthy, and the grain stored in the city was enough, even if some of the people in the four counties in the upper reaches of Zhangshui fled to Nanpi before the war, the grain stored in Nanpi would at least survive the spring famine next year.

Cao's army attacked from the southwest to the northeast, and the south side of Nanpi City was naturally the most violently attacked, followed by the east side-

Although the west side was closer to the direction from which Cao's army came, the west of the city in Nanpi was not far from Zhangshui, and the river blocked it made it difficult for the attacking troops to deploy.

Therefore, Cao Cao only built two trenches along both sides of the river to communicate with Yongdao, and then built arrow towers and watchtowers to ensure blocking.

Cao's army on the southeast bank of Zhangshui can even shoot at the crossbowmen at the head of the city, and both sides are within the range of each other's direct aiming, which is already a-for-tat.

Because the south of the city is the easiest to attack, Zhang Nan, who patrols the defense of the city every day, naturally attaches the most importance to the south of the city.

Early this morning, he personally came to the South City Tower to inspect.

As far as the eye could see, there were three or four collapsed wrecks of the Cao army's siege car, which fell not far from the base of the city wall.

Two of them had been charred by the fire, with only a few wooden frames remaining, and the other two had not been burned, but had been badly deformed when they were dumped.

These are the results of Zhang Nan's battle according to the defense tactics brought back by Xinbi - Xinbi himself, although it took three months to ask for help, but when Xinbi first arrived in Danyang, Yangzhou, Zhuge Jin was very generous and made his own decisions, and handed over the technical information on how to defend the siege of Ge buses and how to build genuine Ge buses to Xin Bi.

At that time, Xin Bi sent a reliable henchman to bring these materials back as soon as possible, and he himself continued to go to Wuchang to meet Liu Bei and conduct various investigations. Therefore, Zhuge Jin's offensive and defensive city skills and tactics were sent back a month and a half earlier than Xin Bi himself.

At that time, Yuan Tan also paid a lot of price, organized the army to launch a small-scale siege relief battle, and sent these materials into Nanpi City, so that Zhang Nan's line of fire could learn and immediately deploy the tactics of restraining Ge Gong's siege of the city.

I made a bunch of pulleys tied with thick hemp rope and boulders, and used them with bed crossbows, trying to pull and collapse the unstable center of gravity of Ge bus.

There are also some other subtle techniques for defending the city, which have also been synchronized to Zhuge Jin's level, allowing Zhang Nan to defend Nanpi for two months and stand tall.

Cao Hong on the other side was a little anxious, and after being transferred to Lejin and Xu Huang, he also listened to Cao Cao's words at first and obediently besieged him, but recently he became impatient, and began to disbelieve in evil again.

Cao Hong didn't get anything, but instead lost two or three thousand soldiers, and his morale was even lowered. Zhang He Gaolan was also worried, thinking that Cao Hong was not worried about them, and he wanted to consume them, and he would lose both with Yuan Tan.

And at this juncture, Tai Shici's troops finally escorted a grain fleet, under the banner of Yuan Tanjun of Qingzhou, sailed from the Bohai Sea into the mouth of the Zhanghe River, went up more than 150 miles against the current, and approached Nanpi City.

Tai Shici's movements were immediately discovered by Zhao Rong and Lu Weihuang, the generals of Cao Jun's troops in charge of the siege on the northwest side, and quickly reported to Cao Hong.

Cao Hong hurriedly convened the generals to discuss, and brought Zhang He and Gao Lan, who were responsible for besieging the southeast side of Nanpi, to also find them, and deploy a strategy to retreat the enemy on the spot.

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