Liu Bei had no choice.

With his superior forces, he may not have a full chance of winning when he confronts Su Zhe head-on in the field.

What's more, now that Su Zhe has gathered 200,000 troops and is backed by Yudao City, how dare Liu Bei attack Su Zhe, who has 200,000 troops and a city, with 110,000 soldiers and horses, unless he is crazy.

He had no choice but to retreat.

So, Liu Bei really adopted Zhuge Liang's suggestion, and that night he ordered the camp to leave, and retreated all the way to Nan'an City, forty miles south of Chengdu.

This city is already the last barrier of Chengdu, and one step further, Su Zhe's troops will be killed under the city of Chengdu.

Chengdu is located in the plains, although the city is strong and tall, but there is no danger around.

Since ancient times, the rulers who occupied Yizhou relied on the perils around them to defend Chengdu, and once those perils fell, when the enemy army reached the city of Chengdu, almost all the rulers gave up resistance, either abandoned the city and fled, or chose to surrender.

Therefore, Liu Bei knows very well that holding Nan'an City is equivalent to holding Chengdu.

If Nan'an is lost, Chengdu City will not be defended, so it can only be handed over to Su Zhe.

When Liu Bei, who retreated to Nan'an City, was seizing every minute and every second to strengthen the city, preparing to deal with Su Zhe's onslaught that would soon come.

As for Su Zhe, he led an army of 100,000 and rushed from Nanguang City to Yandao.

A few days later, the 50,000 reinforcements led by Wei Yan also arrived from Jiangzhou, and Su Zhe gathered an army on the front line in Yizhou, totaling nearly 200,000 people.

After a short rest, Su Zhe gathered his army and continued to go north, heading straight to Chengdu City.

A few days later, the army reached the city of Nan'an.

In view of the fact that although he had more soldiers and horses, it was only more than twice that of Liu Bei, and there was no way to implement a comprehensive encirclement of Nan'an City, so Su Zhe only ordered the army to go down to the south of the city.

Rao is like this, the Wei army is ten miles in the south of the city, the battle flag covers the sky, the camp is full of chess steps, there is no end in sight, and the momentum is mighty.

Su Zhe was not in a hurry.

No matter how strong Nan'an City is, can it still be stronger than Liyang City and Yecheng back then?

Liu Bei has an army of 110,000, but no matter how strong he is, can he still be stronger than Yuan Shao back then?

Su Zhe is not in a hurry at all, he has absolute self-confidence, and he will never give up if he and Liu Bei spend it in Nan'an City, and if he does not break through the last city leading to Chengdu.

Therefore, Su Zhe ordered the army to stay still, rest on the spot, and wait for the follow-up grain and grass to arrive at the front line, and then it was not too late to attack the city.

It's the day, the Emperor's Tent.

The advisors and generals of the Great Wei gathered together to discuss the strategy of breaking the city.

The generals were all enthusiastic and high-spirited, of course, they advocated an immediate onslaught on Nan'an City, and used the absolute strength of Great Wei to break the city with Yang.

Su Zhe was not so impulsive, and looked at Huang Quan: "Gongheng, I'm afraid I will have to work hard for you, I want you to write a "Discussion of Liu Weiwen" for me, I want to shoot this text into Nan'an City, and it will be widely scattered throughout Yizhou, so this text must have enough lethality to make the hearts of Yizhou people scatter." ”

Everyone immediately understood that their son of heaven was going to fight a public opinion offensive.

This is also the method that Su Zhe used before the decisive battle.

Huang Quan is Liu Bei's former minister, and he is a Shu person, and his literary talent is not weak.

"Your Majesty will rest assured, the minister will write the document within a day, and I promise to satisfy Your Majesty." Huang Quan did not refuse, and happily accepted the order.

Su Zhe nodded with satisfaction, and looked at the generals: "Everyone, we have been fighting for several months, all the way from the White Emperor Pass to here, and now Chengdu City is only one step away from us, I want you to cheer up, inspire your subordinates, just wait for me to give an order, and then level the city of Nan'an and take Chengdu directly!" ”

"Raze Nan'an!"

"Take Chengdu directly!"

The blood of the generals was boiling, and the crowd responded, and the pride of hunting like a mad was burning in the imperial tent.

A day later, Huang Quan's "Discussion of Liu Weiwen" was written.

Either Huang Quan is Liu Bei's former minister, and he knows Liu Bei's details clearly, and even Su Zhe is full of praise for this text.

In this text, Huang Quan used extremely sharp words to denounce Liu Bei's treachery and shamelessness in stealing Yizhou from Liu Zhang, a fellow sect, and reprimanded Liu Bei as a hypocrite, hypocrisy, shameless, and ruthless hypocrite.

Then, Huang Quan sent Liu Bei to the city of Yandao and the counties of Nanzhong to Meng Huo, and connived at the barbarians' actions of burning, killing and looting, and also reprimanded him with indignation, clearly saying that Liu Bei regarded Shu people as dogs.

Through a series of shameless actions by Liu Bei, Huang Quan called on the people of Shuzhong to rise up against Liu Bei, a "tyrant", in response to the Great Wei Dynasty and welcome the real Emperor of Destiny into Yizhou.

After Su Zhe read this inscription, he couldn't help but be amazed, and ordered to copy tens of thousands of points on the spot, first shoot it into Nan'an City with arrows, and then send detailed works to be widely scattered in Chengdu and other cities in Yizhou.

The lethality of the text was soon revealed.

The people of Yizhou were already panicked because of the invasion of Wei, Liu Bei's successive defeats, and the loss of the city and land.

Now that the barbarian army has been annihilated, the seven counties in Nanzhong have been lost, and the Wei army is about to hit Chengdu, which makes their hearts shake.

Constant failures, continuous death of Shu soldiers, how many Shu white-haired people send black-haired people......

All these things have aroused the dissatisfaction of the Shu people with Liu Bei, and they have long been complaining.

As soon as Su Zhe's text came out, it was like igniting a * bucket, which instantly made the people in Yizhou angry, and people's minds changed.

Under the instigation of these inscriptions, the Shu people's dissatisfaction with Liu Bei soon turned into a rebellion.

The people around Chengdu, such as Lingong, Guanghan, Han'an, and Yandao, organized to kill the county officials and set up anti-flags.

And many counties that have not yet turned back have also stopped continuing to supply grain and grass to the front line and adopted a wait-and-see state.

For a time, before the Wei army attacked the city, Liu Bei changed in the rear and knew that he was in chaos.

In this case, in order to maintain the stability of the rear, Liu Bei had to divide his precious soldiers and horses to pacify those rebellious counties, and the strength of the front line of Nan'an City was suddenly weakened.

It is not only the strength of the army that is weakened, but also the fighting spirit.

More than half of the Han army led by Liu Bei were local young people in Yizhou, and many of them came from those rebellious counties.

The rebellion of the fathers and elders in their hometown could not have an impact on them, and the rebellious mood soon spread among the Han army like a plague.

The escape begins.

At first, there were a dozen people, then dozens of people, and then hundreds of Shu soldiers fled in droves.

In the face of such a grim situation, Liu Bei used the so-called "benevolence" lie to fool the Shu soldiers to serve him, which was obviously useless, and could only take strong means of suppression.

Liu Bei immediately passed down the decree and ordered Ma Chao and other generals of Yongliang and other prefectures to lead soldiers from non-local origins to closely monitor the battalions and strictly prevent the soldiers from escaping.

Under Liu Bei's bloody suppression, the escape of the soldiers was slightly curbed, but the low morale of the people was inevitable.

All the changes in the Han army were naturally expected by Su Zhe, and the blow of the public opinion war was obviously a great gain

Therefore, Su Zhe immediately ordered to launch a frontal attack on Nan'an City, and used a military offensive to cooperate with the public opinion war.

As a result, Yan Liang, Tai Shici, Deng Ai, Zhang Xiu, Gan Ning, Yan Yan and other generals led 200,000 soldiers to launch a fierce attack on Nan'an City day and night.

Hundreds of thousands of arrows were fired at the enemy city, and tens of thousands of stone bullets were bombarded at the head of Nan'an City, attacking Nan'an City day and night.

During the siege of the city in the past seven days, the Wei army fired more than 70,000 stone bullets at Nan'an City, almost everything on the wall of Nan'an South Gate was razed to the ground.

And the hundreds of thousands of arrows shot out were densely inserted into the city wall, which was terrifying at a glance.

Although the long-range attack of the Wei army was not as strong as the Shenlei cannon of the Han State and failed to collapse the Nan'an city wall, it was a heavy blow to the already low morale of the Han soldiers.

Under the blow of external forces, the Han army's will to resist suffered a heavy blow again, and the Shu soldiers, who had been suppressed by Liu Bei, once again ventured and began to flee.