Zhuge Liang roughly described Li Su's idea of ​​"taking the position of attacking Cao Cao from the middle line next year and the southern line next year, so that Yuan Shao and even Yuan Shang in the future relaxed their vigilance."

At this point, Xun Youfazheng is still easy to understand. The key to the subsequent problem is how to provide supporting this attitude and how to make real logistics preparations.

Considering the distribution of resource strength of Liu Bei's regime, Guanzhong, Liangzhou, and even Bingzhou, which is about to be regained, the troops and food in these places may only play a main role in the battle to restore Youzhou in the future.

Or at most, it includes a few counties in Jizhou, and these counties are often the throat locations connecting the main traffic route between Bingzhou and Youzhou.

Most of the remaining Jizhou areas, as well as the Jiangbei part of Qing, Xu, Yan, Yu, and Yangzhou, have to be solved by the power of the central and southern lines.

Even if the combat troops can attack from the northern line and enter the enemy's territory, they must quickly complete the intersect and encircle and connect with the central war zone. The continuous supply of military rations for these northern line troops still depends on the central and southern areas, and the grain route is still in the central and southern areas.

Li Su's arrangement on this issue was mainly divided into two parts. This was not involved when he discussed it with Lu Su before, but it was only when he wrote a memorial to Liu Bei that it was fully enriched.

Zhuge Liang explained to you based on his understanding of what he saw and sold just now:

"According to Sikong's plan, in the future, the southern route will be attacked by Yangzhou from Yangzhou to attack Lianghuai, and the grain route can be divided into two parts. First, it will attack Ruxukou in Jiangbei, and then it will be closer to Juchao, Chaohu, Hefei and Shouchun in Huainan.

The source of food and grass for this road is mainly due to the output of Jiangxia County, Yuzhang, Poyang and Luling, which means the output of the entire Ganjiang River Basin and the supply front line.

Another road would go further east, attack Guangling from Jingkou, and then walk through the Hangou Road dug by King Fuchai of Wu during the Warring States Period, and go north to threaten Xia Pi and Pengcheng in Huai and Si.

However, this road may not be able to go far. It is mainly because the old Hangou road has been silted for hundreds of years and gradually became disrepaired. When Cao Cao destroyed Xuzhou, he even massacred the city everywhere. All facilities in Xuzhou were seriously damaged. I don’t know how much repairs will be made in six years. If Hangou has not been repaired at all, you can’t count on it at that time.”

Zhuge Liang first reviewed the route of the Yangzhou Northern Expedition in the future. No one was ambiguous about this part, so he quickly took it over. Then he talked about the key issue of the middle lane advancement.

"In addition to the southern route, our army's middle route has to rely on Jingzhou to attack Yuzhou. The intersection of Jingyu and Yangzhou is the Dabie Mountains, and it is difficult for a large army to advance and can only harass it. This has long been proven.

Earlier this year, Sikong asked Shamoke, the Meng family in Kunming to disguise himself as Wang Ping's Wudang Flying Army, to cross the Dabie Mountains and plunder the surrounding areas of Runan. However, after Xiahou Yuan supported Runan, Shamoke could no longer make any progress, which is ironclad evidence.

In this case, if you want to bypass Tongbai Mountain and Dabie Mountain and attack Xuchang, Yingchuan from Nanyang, it is well known that the best way to go is to advance between Funiu Mountain, the branch of Qinling Mountain and Tongbai Mountain, the branch of Dabie Mountain.

As early as two years ago, when the imperial court wiped out the rebel Yuan Shu and captured Nanyang, General Zhang Fei and General Zhang advanced quickly. While General Gao Shun surrounded Wancheng, he tried his best to plunder the counties on the Nanyang-Yingchuan border that still belonged to Yuan Shu at that time.

At that time, our army seized Ye County and Kunyang before Yuan Shao and Cao Cao attacked Yingchuan. These two counties were originally bounded by Yuzhou, and were already facing each other in the northeast of Tongbai Mountain and Funiu Mountain Pass, and across the watershed from Bowang County, Jingzhou, southwest of the pass.

Ye County, Kunyang is located on the banks of the Lishui River, a tributary of Yingchuan, and Bowang is located on the banks of the Qingshui River, a tributary of the Han River. In the past two years, General Gao led his troops to defend Ye County and Kunyang, and at least he could transport the rations of Jingzhou to the front line on land, stalemate with Xiahou Yuan.

But if you go on a thousand miles to advance from Kunyang to Xuchang and continue to go deeper, you must rely on food to the enemy, or open up the waterway between the Han River and Yingchuan-Honggou. Otherwise, even if you rely solely on building a caravan that has made great achievements in Liangzhou in the northwest, it will be very costly to transport the caravans.

In order to achieve a long-term plan, Sikong officially pleaded with his Majesty to allocate funds and make every effort to build a canal that communicates with the Lishui River to show the court's determination to directly communicate the Han River and Huanghuai River systems.

Moreover, as long as this river starts to be built, Cao Cao will definitely believe that because of the logistics difficulties of the northern line, His Majesty will be the main focus of Yuzhou next year, so he only knows how to protect himself and dare not support Yuan Shao anymore.

Yuan Shao's Yingchuan and Runan territory have become enclaves by then. Yuan Shao will definitely hand over these two counties to Cao Cao to occupy and defend in order to prevent our army from entering the Ying-Huai River Basin.

In the future, Cao Cao will have greater courage to interfere in Yuan Shao's internal affairs and intervene in the central central government of the pseudo-Kundong Dynasty and will have deeper intervention. Everything will be treated politely by us to seek trouble in chaos. After Yuan Shao's death, Yuan Shang and Cao Cao rebelled, and Yuan Tan and Cao Cao colluded with him."

After all, the picture was revealed. It turned out that Li Su's last step of "acting" was to re-mentioned old things and put the matter of repairing the Lishui-Lishui Canal on the agenda.

There is really a bit of conspiracy here. After listening to it, Xun You and Fa Zheng could feel that in fact, from the perspective of pure military value, Li Suxiu's canal may not be able to make a profit.

Zhuge Liang said, "Even if there is an amphibious caravan, this canal must be built." This is obviously a sign of the decision-making of the priest and his mentor.

As a "benevolent king", Liu Bei must not be able to conscript and fish in large-scale canal construction like Emperor Yang of Sui. If he didn't give him some excuses to force him, he might not be able to make this decision.

But if this is not done under the mobilization system in the war years, it will be even more difficult to mobilize in the peaceful era, because the visible direct benefits are not that great.

Li Su wanted to dig this canal, of course, the purpose was to further closely connect the southwest region of the Han Dynasty with the northeast region, so that the Han Dynasty's court center could more efficiently dispatch resources from Jingchu and Shu in the future.

The materials from Yizhou were connected to Guanzhong through the Shu Road during the Western Han Dynasty, which was of great help to the court. In the early Han Dynasty, Emperor Wen sent Deng Tong to Shu to open Tongshan, which was rich in the world. During the reign of Emperor Jing and Emperor Wu, the family of King Zhuo Sun Sima Xiangru, many wealthy merchants in Shu could help the country.

However, after the Eastern Han Dynasty, because the central government had to mobilize materials from Chang'an to Luoyang, it was difficult for Shu to supply materials directly to the central government, so it could only export copper coins. Later dynasties spent all their money on copper net exports in Shu and had to use iron coins.

Later Yang Guang's Grand Canal only closely connects the southeast and the north, solving the separatist tendency of Yangzhou or Wu, and alleviating the historical problems left over from the Six Dynasties in the Southeast.

However, Yang Guang did not solve the separatist tendency of Shu. It may be because in the Northern Zhou Dynasty, during the process of the Liang-Chen alternation of the Southern Dynasty, the Northern Zhou Dynasty had already seized Shu. Chen, the last dynasty of the Southern Dynasty, did not own Shu. Therefore, Shu had been temporarily recaptured by the Northern Dynasty for decades in the early Sui Dynasty, and the rulers felt that it was not a big problem.

But later history proved that there was always a tendency to separatist in Shu. In history, the monarchs of the Song Dynasty learned about the lessons of the separatist in Shu during the Five Dynasties and Ten Kingdoms, and also thought about this.

However, the Song Dynasty was "scholars and officials ruled the world together", and the monarch could not be dictatorial, nor did he have the courage and mobilization ability of Yang Guang. In addition, when he was building this canal of only 40 kilometers (80 miles), he encountered some engineering difficulties, so he did not have the determination to do it to the end.

According to the original history, this canal that crossed the Fangcheng Pass (called Duyang County in the Han Dynasty, located in the valley between Bowang and Ye County) was not determined to complete the construction until the end of the 20th century when the "South-to-North Water Diversion Project".

Now Li Su suggests that the canal be built. If the materials that have been farmed in Yizhou for many years can be transported directly along the Yangtze River to Nanjun, and then there is no need to go to Wuchang. You can go directly from Nanjun to Hanjinkou and then flow back to Xiangyang

Because the Yunmengze, Xiaze and Xiashui channels in the late Han Dynasty were not completely blocked, Sun Ce even walked past when he attacked Nanjun before. Walking from Jiangling to Hanjin can save more than 900 miles to travel around Wuchang.

Then, it is to transfer from Xiangyang to the Jingshui River and enter the canal through Xinye, and then pass through Kunyang and follow Yingchuan to Honggou. The wealthy materials accumulated in Shu for many years can support the consumption of the Huanghuai battlefield.

In other words, after the materials from Yizhou were gathered in Jiangling, and when there was a new canal, the total mileage was only about one thousand miles away from Jiangling to Xuchang.

There is no new canal, and you will continue to flow down the Yangtze River. Ruxukou turns to Hefei and Shouchun, which is 2,800 miles. If Shouchun goes back to Xuchang, it will be 800 miles against the current, and there will be 800 miles of Huaihe and Yingchuan. Of course, in actual combat, you will definitely not expect to transport grain from Hefei when you besiege Xuchang. That is too exaggerated. The enemy-occupied areas of 800 miles along the way have been drilled out first.

But no matter what, it is certain that Yizhou materials are transported to the future central area of ​​Sili, and the new canal saves more than 2,000 miles of water.

Moreover, we cannot think that the canal is not important because the Song Dynasty later gave up the construction of this canal, because it is equivalent to the inverted result.

During the Song Dynasty, the economic development of Wu in Jiangnan was already very good. Moreover, the court gave up its official capital, Luoyang, and moved east to Bianliang, just to get close to Honggu and the Grand Canal, and to eat canal to ensure the capital. Wu land is enough for the court to eat, so there is no need to reduce the loss of materials from Shu to the center.

On the other hand, the economic development of the canal and a region is not because "there is already developed here, so the canal is built to plunder the supplies here", but because "the canal is built first, so the canal is developed along the canal."

In the early Tang Dynasty, the economic centers were all in Hebei. Later, after the north was destroyed, Wu land was able to rise rapidly from the Five Dynasties and Ten Kingdoms to the Song Dynasty because the canals connected the Central Plains of Hebei and Wu land. The other two were destroyed. Of course, local resources had to tilt along the canal to the Wu land, ushering in the "Great Development of Wu land".

If Li Su built the canal at Fangcheng Pass, there might be wars in the north and resources will escaping chaos and moving south in large quantities, which will lead to "Jingchu Great Development" and "Shu Great Development".

Just like in the past century, some people say that Jiangxi is "Akarin Province". It is not suitable for development, so no one comes to connect them. It is because there are many brides that cause and effect that leads people from other provinces to circumvent, but this view is inverted from the beginning.

If history can be assumed that when the Guangdong-Han Road was built in the evening, he would go to Jiujiang instead of Changsha, then the economic fate of Hunan and Jiangxi provinces might be reversed. Anyway, as long as one province develops on the major arteries of the north and south, history itself has no tendency to develop on which province it is.

The world is unkind and treats all things as straw dogs. History can roll dices by chance. In which province of the first railway is built by accident, the flywheel effect will turn, and the subsequent resources will be stacked upwards.

...

Liu Bei started his career in Yizhou in this life. After he fought, he stayed away from Yizhou. Of course, he had to try to transform it geographically to prevent the possibility of new separatists appearing in the future.

Especially Li Su, the governor of the affairs of several southern states, even if Liu Bei permits to extend his term, he will only have two years of office. Next year, Li Su will definitely return the power of some states of the former governor of the South.

If Li Sudu handed over military control over Yizhou, Liu Bei himself was not there, Guan Yu, Zhang Fei and Zhao Yun would also lead troops on the front line, and he should eliminate future troubles from the system.

After thinking through all the pros and cons of these aspects, Liu Bei and Xun Youfazheng had to admit that it was reasonable for Li Su to make up his mind to build this canal in such a year.

What was not very cost-effective was to calculate the military accounts, long-term management cost accounts, the convenience of mobilization of the wartime system, and the fraudulent accounts of diplomatic strategies, the total income of the four accounts had exceeded the construction costs.

This plan that Li Su had blown away with Liu Bei many years ago finally reached the stage of cost-saving by integrating the four accounts.

Liu Bei made the decision: "This matter will be done according to Boya. After the restoration of Luoyang, Yuan Shao's Yingchuan and Runan will become an enclave. We took advantage of Yuan Shao's opportunity to entrust the defenses of these two places to Cao Cao and start to arrange these things in advance.

Anyway, I had originally planned to be appointed as the captain of Boya's Sili in Luoyang. After the messenger returned to announce the imperial edict, he asked Boya to arrange the south and go back to Chang'an to report the order. When Luoyang calmed down, he could go to Luoyang to take office.

Nanyang County borders Luoyang, and it is convenient for him to continue to take charge of Gao Shun's affairs. After taking over the Sili School Captain, his power to governors in Yizhou and Dianzhou will be the end of this year. Next year, he will return the power to governors in Yi, Dian and the three prefectures.

The governorship power of Jingzhou and Yangzhou and the supervisory power of Sili will be retained. At that time, the Sili lieutenant will be changed to the governorship power of Sili, and the three states including the Governor Sizhou will be replaced.

Zilong will take advantage of the coldest time to go to Pinglinyi at the end of the year. After Boya’s governor’s power is handed over, he can transfer it to Zilong. From the first month of next year, the specific term of office depends on the progress of Jiaozhou’s recovery and the progress of Linyi’s extermination. If it is fast, it will be one year, and if it is slow, it will be one year.

Two years later, Zilong's power to governor over Jiaozhou must be taken back. If Wu's production and people's livelihood have been restored and there is a savings to launch a Northern Expedition against Huainan, then Zilong will be moved to governor Yangzhou and Boya's power to governor Yangzhou will be taken back.

Finally, the matter of Boya's construction of the canal in Bowangye County must be completely resolved within two years. Within two years, he must go from Nanyang and Luoyang to the east to seize the land of Ruying. Before that, he must also return the power of the governor of Jingzhou. The court's laws cannot be abolished."

Xun You and Zhuge Liang and Fa Zheng calculated that there was nothing to advise Liu Bei's resolution, so this matter was done.
Chapter completed!