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In 214 AD, Liu Zhang, the Mu of Han Yizhou, surrendered to Liu Bei.

So far, Uncle Liu Huang, who has been stumbling for decades, has finally initially achieved the goal of Longzhong to have Jingyi and three points for the middle span.

However, not long after the good days, there were rumors that Cao Cao's army had entered Hanzhong and Zhang Lu had fled to Brazil.

All of a sudden, the earthquake in Shu was terrifying!

Shi Zai: "Shuzhong was shocked dozens of times a day, although Liu Bei couldn't stop it. ”

Why did Cao Cao Kehanzhong bring so much panic to Shudi? This starts with the strategic location of Hanzhong.

Hanzhong is located in the Qinling Mountains, which is an alluvial plain formed by the Han River in the Qinling Mountains.

It is surrounded by mountains on all sides, and the terrain is dangerous.

From Hanzhong to the north, there are several plank roads leading to the Guanzhong Plain, from west to east are Chencang Road, Baoxie Valley, Luogu and Meridian Valley.

Going down the Han River to the east, you can reach Shangyong County.

To the west through Wudu, it connects the land of Longyou.

To the southwest through Yangpingguan, Jiange, Zitong, can lead to Chengdu.

On the whole, Hanzhong is a bridge connecting Guanzhong and Shudi.

Whether it is for Guanzhong or Shudi, Hanzhong is an extremely important strategic barrier.

If Hanzhong is in the hands of the Guanzhong forces, Shu will soon face a direct military threat.

So much so that Huang Quan, the general of Shuyou, shouted loudly, saying: "If you lose Hanzhong, you will be sluggish!" ”

It can be seen from this that Hanzhong is of great importance to the secession forces of Shu.

This time Hexi attacked Shudi, first of all, to seize the strategic place of Hanzhong.

After sending an envoy to ask for a decree, Wei Shuo did not wait for the will of the imperial court stupidly, but began to plan an early plan to attack Shu.

At the battle meeting against Shu, in addition to Wang Zhenxi, Wang Maide, Jiang Ji, Cui Hong, Hu Fan, Huan Zhen, Zhu Lingshi, Mao Dezu, Fuqu Nancheng and other generals participated, and Niu Shou, who led the displaced people from Shu to return to the north, was invited to participate.

This is the first time Niu Shou has entered the Privy Council, and it is strange to see everything, especially when he sees the huge sand table, he is even more dumbfounded.

He knew that his status was not high, and he was fortunate to come in today, but because he had lived in Shuzhong for many years and understood the geography of Shuzhong.

So as soon as he came in, Niu Shou sat in the corner with great interest.

Huan Zhen and the others will see a stranger breaking in, and they can't help but be secretly surprised.

It must be known that King Yong has already set an iron law, and those who are not soldiers break into the Privy Council for no reason are equivalent to collaborating with the enemy and leaking secrets, and in serious cases, they will even be directly executed.

But everyone saw that Niu Shou was not expelled, so they thought that there must be something inside.

For a while, everyone looked at Niu Shou curiously, wondering why this person was invited to the military meeting.

Suddenly, King Yonghu stepped in, and everyone stood up and saluted.

There was silence in the hall, and everyone turned their eyes to Wei Shuo, waiting for King Yong's decision.

Wei Shuo glanced at everyone, and at the same time saw Niu Shou standing in the corner, so he nodded to the other party.

"Ahem, you may wonder why Lone called an irrelevant person over."

"You don't know that before Renqing returned to his hometown, he had lived in Shu for decades and knew the geography of Shuzhong."

"And if you want to break the rebels, you must first understand their geography."

"Next, let Renqing tell you about the geography of Shuzhong first, and then arrange troops accordingly."

"Renqing, please!"

"Oh, Your Highness is serious, how dare you say a word?"

"Please rest assured that the generals will know everything to help the army quell the rebellion and take Shu as soon as possible."

Niu Shou paused, and then said: "Your Highness, generals, according to the old man's understanding, if you want to talk about the geography of Xishu, you can't fail to mention a few key places. ”

Everyone's curiosity was immediately aroused by Niu Shou, and they all turned their eyes to each other.

Niu Shou wiped the nervous sweat on his forehead, pointed to a pass on the map and said, "The first place is Yangping Pass." ”

"Yangping Guanxi controls Sichuan and Shu, passes Qinlong in the north, and then Yijingshan, towers in front of Dingjun and Zhuobi, stands on the right side of the white horse, the golden bull, the left arch clouds and mist, Baizhang, Han, black, and embers are wrapped in the water, and the world is extremely dangerous, which can be described as the world's Xiongguan."

"It is not only the western gateway of Hanzhong, but also the key to going south to Shudi."

"Go south through Yangping Pass, cross the Golden Bull Road, and you will go straight to the Sword Pavilion."

"The Sword Pavilion is the northern gateway of Shudi, and it is also the second key place that the old man wants to talk about."

"Since Zhuge Liang, the prime minister of the Shu Han Dynasty, has been guarded by the pass, the Sword Pavilion has become the first dangerous pass in Hanzhong to enter Shu."

"Back then, Zhong Hui destroyed the Shu army, and more than 100,000 people were trapped under the Sword Pavilion, and they were not allowed to advance an inch."

Speaking of this, Niu Shou couldn't help but remind: "If His Royal Highness attacks Shu and doesn't want to go to the Sword Pavilion, he must take a detour to Yinping." ”

He took a long breath and said: "Back then, the old man asked many local mountain people that they could reach Jiangyouguan from the Yinping Trail. ”

"As long as Jiangyou is successfully occupied, the Sword Pavilion will lose its natural danger effect, and Chengdu will be able to break it in the near future!"

Hearing this, Wang Zhen frowned slightly and said: "The Yinping Trail is full of high mountains and mountains, I'm afraid it will not be easy to pass." ”

"And Deng Ai's old affairs are not far away, and he is a big clan in Shu County, how can he not know how Shu Han died?"

"He only needs to send a few men and horses to guard the danger, and I am afraid that it will be difficult to cross the Sky Ridge."

Wang Zhenwei had obviously done research on the mountains and rivers of Bashu earlier, and he completely disagreed with Niu Shou's suggestion.

He shook his head again and again and said, "This plan is too dangerous to implement." ”

Niu Shou stood there awkwardly, quite at a loss, obviously he also realized that he had just Meng Lang.

But as a famous man in the family, he also has a heart for fame and fortune, and now that he has the opportunity to show his face in front of King Yong, he naturally does not want to let it go.

Fortunately, Wei Shuo did not blame him, but gently comforted Niu Shou a few words, and continued to ask him about the situation in Shu and Hanzhong.

Next, Niu Shou didn't dare to put forward opinions indiscriminately, but honestly introduced the dangerous geography of Hanzhong such as Dingjun Mountain, Tiandang Mountain, and Baocheng to everyone in detail.

Although Niu Shou tried his best to perform, Wei Shuo didn't trust the other party and only regarded him as a general consultant.

Waiting for Niu Shou to leave, Wei Shuo conspired with Wang Zhenwei, Wang Maide, Jiang Ji, Cui Hong and others to discuss the plan to attack Shu.

"According to Niu Shou's description, plus the scout's investigation, the ministers and others have roughly figured out the Hanzhong defense line."

"Generally speaking, Hanzhong has formed the plank road pass as the first line of defense; It is a defense system in depth with the two cities of Chenggu and Chuyang as the second line of defense, and Nanzheng and Yangpingguan as the third line of defense. ”

"Among them, Yangping Pass is the most important, not only guarding the west gate of Hanzhong, but also the key to going south from Hanzhong to Shudi."

"The ministers and others thought that at the moment, our army should take advantage of the enemy's unpreparedness and immediately launch a surprise attack to take the outer defense line of Hanzhong first."

……

In October 396 AD, an edict was issued from Jiankang, ordering King Yong to lead an army to conquer Xishu.

When the news came, Xishu was shocked, and the king of Shu hurriedly convened everyone to discuss countermeasures.

"The old man has already reminded you not to betray the court, don't betray the court."

"But you are all ambitious, but you don't listen to good advice."

"Now it's okay, disaster is coming, right?!"

"Frightened...... Horror, catastrophe is coming, catastrophe is coming! ”

Although he is usually peaceful, it is especially scary for an honest person to be angry.

In the face of the loud roar of the contemplation, the rebel generals such as Daofu, Hou Hui, and Yang Yu all lowered their heads, not daring to make a sound.

"The lord has put down the wrath of thunder, and now it's too late to regret it."

"The only way to do this is to immediately dispatch troops and horses to gallop to the Sword Pavilion and Yangping Passes."

"As long as you hold the pass and keep the Hexi army out, no matter how powerful King Yong is, what can you do to me?"

Just when Xishu was panicking, he suddenly heard someone in the corner suddenly rise up and say the above paragraph.

This person is not a bystander, but a member of the Qian Zong clan, who was promoted to an auxiliary general after he entered Chengdu.

Chen Daofu is the most capable subordinate under the command of Qian Zong, not only resourceful, but also quite skilled in leading troops to fight.

Now that Chen Zong's heart was in turmoil, he heard Chen Daofu talk about the strategy of resisting the enemy, and he suddenly came to his senses.

"Daofu, do you have a plan to retreat from the enemy?"

"The king, if you want to retreat from the enemy, I am afraid it is very difficult, and the minister can only do his best." Chen Daofu smiled bitterly.

"Hexi invaded the south on a large scale, although under the guise of counterinsurgency, but judging by his actions, it is obvious that King Yong has already set his sights on Shuzhong."

"Unless King Yong occupies Shuzhong, he will not easily retreat."

"Now Longyou and Guanzhong belong to Hexi, so that the meridian road, Bao slope road and other plank roads into Shu are all open to it."

"Don't look at the imperial court just issued an edict to King Yong, but the minister suspects that the Hexi army may have already started."

"It is not even ruled out that the other party has taken Yangping Pass and other key passes on the plank road, opening the gateway to Hanzhong in the south."

"What?! Daofu is saying that Hanzhong has been lost?! Chen Zong said with a shocked face.

"If what the minister expected was right, there is a chance that it will be so."

"At the moment, the only thing our army can rely on is the Sword Pavilion Heavenly Danger."

"With the danger of the Sword Pavilion, it is enough to block the Hexi soldiers!"

"The king doesn't need to panic, as long as he guards the Sword Pavilion, even if Hanzhong is lost, it will not affect the overall situation."

"As for the strategy of retreating from the enemy......"

"The minister does not advocate taking the initiative to attack, and advocates sticking to the pass and waiting for the Hexi army to collapse without a fight."

"Good! Act according to the advice of the auxiliary generals. ”

At the moment, everyone's plan has been decided, and Qian Zong will take Chen Daofu as the commander of the army, and lead 30,000 soldiers and horses to the north to resist Hexi.