On the official road in central Sichuan, a long row of soldiers and horses was meandering.
It was Zhao Yun of the Shu Army.
At this time, Zhao Yun discovered that the troops were heading southeast and asked Zhuge Liang: "Military advisor, if we are not going back to Chengdu, where are we going?"
Zhuge Liang said with a solemn face: "Let's go to Jiangzhou.
Chengdu and the plains in central Sichuan are not the place for our decisive battle with Lu Bu.
I have sent fast horses to inform the lord.
Let him leave a small number of troops to stick to Chengdu, and then evacuate from Chengdu Meet us."
After hearing this, Zhao Yun said doubtfully, "But General Yide, the lord's sworn brother, was captured by Lu Bu.
Is he willing to retreat to Jiangzhou?"
Zhuge Liang was stunned by Zhao Yun's words, and he reined in his horse.
After standing still for two seconds, he slapped his forehead fiercely and said to himself: "Kong Ming, Kong Ming, why are you so anxious that you even forgot about this?"
After that, he turned to Zhao Yun and said: "Zilong, thank you You reminded me.
Now you can lead your troops to garrison in Jiangzhou, and I will take a small group of soldiers back to Chengdu.
This matter must be persuaded by me personally before the lord can retreat to the southeast of Bashu."
"Military advisor, be more careful."
Zhao Yun hadn't finished his words yet.
Zhuge Liang had already led more than a hundred soldiers and turned around and headed west.
Chengdu, Liu Bei was shocked and angry when he received the news three days ago that Zhuge Liang and Zhang Fei had defeated the camp west of Fucheng.
Just when he was about to lead troops to rescue, news came that Fucheng had been captured by Lu Bu.
At this time, Zhuge Liang had sent someone to send him a message, suggesting that he stick to Chengdu.
At this time, Chengdu only had 20,000 defenders.
It was impossible for Liu Bei to calm down and defeat Lu Bu with such a small force.
So he patiently waited for news from Zhao Yun's tribe in Dong Daying.
He hoped that after Zhuge Liang and Zhao Yun defeated the enemy in Dong Daying, they would return to Chengdu, and then go north to Fucheng to fight Lu Bu.
If they could capture someone from the other camp, The general can also save his third brother Zhang Fei.
But within a few days, Zhuge Liang sent another letter saying that he wanted Liu Bei to move his main force south to Jiangzhou.
This makes it difficult for Liu Bei to understand.
Now Zhang Fei has been captured by Lu Bu, and the two camps of 20,000 troops in the east and west have been locked up by the other side, and then half of Bashu has been handed over to Lu Bu in vain.
A series of defeats made Liu Bei begin to doubt Zhuge Liang's ability.
He once had the idea of taking back Zhuge Liang's command.
Just when he was hesitant, Zhuge Liang came back.
Fortunately, he had too many things to ask Zhuge Liang.
When Liu Bei saw Zhuge Liang, he still said cheerfully: "Thanks for your hard work, military advisor."
"Liang suffered a series of defeats, and I am ashamed to trust my lord."
Zhuge Liang said as he respectfully gave Liu Bei a big gift.
"Come on, military advisor, how can this be all your fault?
The reason why our army suffered such a defeat was firstly because Lu Bu was cunning and scheming by nature, and secondly because his third brother did not listen to military orders and acted rashly.
But" Liu Bei said. , paused for a second or two.
Finally, I spoke out what was in my heart.
"But the military advisor's strategy of setting up forts, fortifying the walls and clearing the country, and luring the enemy to a decisive battle in the hinterland seemed to have little effect on Lu Bu."
Zhuge Liang had already responded to this, and immediately replied: "What my lord said is absolutely true.
Liang really didn't expect that Lu Bu had such a strong engineering ability.
In just over half a month, he could build it despite the harassment of our army."
It is a mistake to have such strong fortifications locking up our two camps."
Zhuge Liang paused for a moment and then continued: "It's just that the strategy of setting up strongholds, clearing the country, and luring the enemy to fight decisively in the hinterland is impossible because Jiange and Langzhong, the two major gateways to northern Shu, are both controlled by Lu Bu.
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I There is no danger for the Shu army to defend.
If they are in Shu There was no chance of victory in a decisive battle with Lu Bu's army on the central plain, so we could only sacrifice our depth to lengthen the opponent's front, and then let the two camps behind the enemy take advantage of it to cut off their food and grass supplies.
But we didn't expect Lu Bu to be able to use it.
The fortifications locked up the two camps with 20,000 troops.”
After hearing this, Liu Bei felt that there was some truth in it, but the unhappiness in his heart was still there.
He continued to ask Zhuge Liang: "Then what is the military advisor's next plan?
How will he move to Jiangzhou?
What will happen to the third brother who was captured?
Gu, Yide, and Yun Chang were not born in the same year and the same month, but they wanted to be born in the same year and the same month.
We are sworn brothers who died on the same day.
If there are any shortcomings in Yide, how should I deal with it?"
"Lord, although our strategy has been temporarily frustrated, we must continue to implement it firmly.
Unless we plan to abandon Yizhou.
Moving the main force to the hilly areas in eastern Bashu with Jiangzhou as the center is still a continuation of this strategy.
Now Shu Central Plains West The northern part of the country has been ordered to desert the fields, so after Lu Bu's army occupied it, they still could not obtain supplies on the spot.
They still had to travel thousands of miles from Hanzhong over the mountains and ridges to transport the baggage.
Even if they had strange ships that could travel in the mountains and rivers, they could not completely alleviate this problem. difficulty."
Zhuge Liang observed Liu Bei's expression and thought that he had digested the preface before continuing: "And we have hoarded a lot of food and grass in Chengdu and other fortified cities, and we can hold it for a long time with a small number of soldiers.
In this way, Lu Bu will either risk going deep into Jiangzhou to fight me decisively, or he will have to stay in the northwest region of Bashu for a long time.
If it is the former, his supply line is so long and there is no city to rely on.
In this case, Liang is confident about Jiangzhou.
If it is the latter, the situation in the world is changing, and no one can guarantee the safety of Lu Bu's other borders in such a long time.
As for us, we will seize the opportunity to counterattack.
General Yide, Liang believes that Lu Bu will not harm him, and we can make an exchange after we capture one or two of his generals."
When Liu Bei heard this, he thought about it seriously.
I think this is the only way to do it.
Unless he gave up Yizhou completely like Zhuge Liang said, he couldn't think of any other more feasible way.
On the second day, Liu Bei selected 3,000 elite soldiers from the 20,000 defenders to stay in Chengdu, and appointed Li Yan, the former Bashu official whom he trusted most, as the commander of Chengdu.
Then he and Zhuge Liang withdrew east of Jiangzhou with the remaining cavalry and Yizhou officials and staff.
At this time, Lu Bu had ordered the Huben cavalry to join the two thousand infantrymen who went south by boat to occupy Chongguo County, south of the Shu Army's East Camp.
However, Lu Bu's main force stationed in Fucheng has yet to move towards Chengdu, because Lu Bu is building some special siege equipment, counterweight catapults, in Fucheng.
This is a trebuchet that uses gravitational potential energy to store energy.
The short arm of the lever hangs a weight for energy storage, and the long arm at the other end hangs the projectile.
The operator first lifts the weight stored in the short arm high, latches the big arm with the machine buckle, and releases the machine buckle when launching.
Under the action of the potential energy of the weight on the short arm of the lever, the projectile on the long arm is thrown at high speed.
This thing is a huge improvement over the manual trebuchet.
The manpower required for operation is greatly reduced and the power is greatly increased.
Although it is still not as accurate as a ballista, its shooting target is only the city wall and does not require accuracy.
In the history of Lu Bu's previous life, the Mongolian army on the Western Expedition used this object to destroy strong castles one after another
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