The more Liu Ye and Jiang Ji thought about it, the more they felt that it was possible.

Although Hedong belongs to Sili and belongs to the Central Plains, it is actually separated from Guanzhong by a Yellow River.

In these days, it is indeed not an easy task to cross the Yellow River, and if there is no specially built ferry terminal, it is a bit risky to rely on a small boat to cross the Yellow River.

Again, army combat does not mean that you cross the river and count it as the end of the matter, logistics grain and grass supply, retreat arrangements, ferry garrisons, these things must be prepared in advance.

Therefore, in this era, the marching and fighting of the army generally chose the land route that was more convenient for the transportation of grain, and even if it was a water war, it was rare to set up the grain and grass supply line on the water.

Unless you have absolute confidence in your own trolls.

Therefore, whether it was Cao Pi, Sima Yi, Jiang Ji, or Liu Ye before, when considering the defensive posture of Guanzhong, they basically thought about and deployed around the two avenues of Wuguan and Tongguan, and rarely considered the waterways along the Yellow River.

For the banks of the Yellow River, Cao Wei only needed to do a good job of defending a few large ferries.

But now Cao Zhen's words suddenly made Liu Ye and Jiang Ji a little crooked.

Yes, in the absence of control of the Yellow River crossing, it is not suitable for a large corps to fight, but it does not mean that the Shu thieves cannot send small-scale combat troops to the Hedong region by boat.

There are not a few fishermen begging for a living on the Yellow River, requisitioning fishing boats and the like to cross the Yellow River, sending a combat force of about 1,000 people at a time, attacking and harassing and retreating, or simply fighting to raise war and sabotage, Shu thieves are not unable to do it.

Again, the Yellow River basin is too long, the Jing River and the Wei River, the two major tributaries of the Yellow River, are in Guanzhong, especially the Jing River, which is in the Zuo Fengyi area, and the Shu thieves can enter the Yellow River through the Jing River, and then log in on the other side of the Yellow River and infiltrate into the Hedong region.

And even worse. The upper reaches of Luoshui are also in the Zuo Fengyi area.

If the Shu thieves harassed the Hedong region, they would evacuate the Luoyang troops to go to the east of the river to encircle and suppress, and then use the army to go down the Luoshui River and attack Luoyang by surprise. That's a big problem.

It's not impossible for this kind of thing to happen.

In the Hedong area, there are too many big families, and because Cao Cao's basic plate in the early years was in Hedong and Luoyang, the family here has a very large voice in the court.

Once Hedong is attacked, then Cao Wei's court will ask for troops to exterminate the Shu thieves in Hedong, and at that time, even Cao Pi may not suppress this voice.

And once troops are sent to Hedong to encircle and suppress the Shu thieves, it must be that the Shu thieves who can't come back for a while are fighting guerrilla warfare, and it's hard to find people, how can it be possible to encircle and annihilate them in one fell swoop?!

At that time, it will inevitably lead to a shortage of troops in Luoyang for a certain period of time.

At that time, if the Shu thieves really trained the naval army in advance and went down the Luoshui River, Luoyang would inevitably be in danger.

If it's just that Luoyang is in danger, it's nothing, although Luoyang was burned down during Dong Zhuo's rebellion, but it has been almost thirty years and has been rebuilt, and today's Luoyang can also be said to be a strong city.

The only problem is that Cao Pi is still staying in Luoyang.

Once the Shu thieves came to the city and Cao Pi was besieged in Luoyang, the situation would become extremely complicated.

You can't watch Cao Pi being besieged, Wancheng, Xuchang, Yanzhou, and even the Cao army in Tongguan and Wuguan, should they send troops to King Qin? !

Don't send troops, it can't be said, if Luoyang is breached, then the problem will be big.

When the Jingzhou legion goes north, the Yongzhou legion takes advantage of the situation to attack Wuguan and Tongguan, carelessly, but the Central Plains is open, even if the siege of Luoyang is solved, it will face the next siege of Shu thieves at any time.

In this case, it is really difficult to say whether Dawei can hold the Central Plains.

And now, because of Cao Zhen's words, Liu Ye and Jiang Ji were inspired to worry about the defense of the Hedong region, especially Zhang Xi's sudden reduction of the northern army into zero, no matter how you look at it, it seems to be a precursor to harassing the Hedong region with a small force across the Yellow River.

Maybe at this time, Zhang Xi was already arranging people to train a special water army.

Therefore, Jiang Ji and Liu Ye hurriedly told Cao Pi their guesses, and asked Cao Pi to immediately strengthen the defense of the Hedong region, especially along the Yellow River, and must set up enough sentry posts to investigate along the coast, and must not allow any Shu thieves to infiltrate.

If Hedong is not chaotic, Luoyang can be safe.

Liu Ye and Jiang Ji's words successfully stirred up the sweat on Cao Pi's back. If you continue to think along this line, you may be in danger at any time.

Therefore, Cao Pi immediately discussed with everyone how to deploy defenses along the Yellow River and even Luoshui.

Deployment along the river, this will require more soldiers, with the current number of troops in the Central Plains of the Great Wei, no matter how you look at it, it is a little insufficient.

In this regard, Cao Zhen gave a past idea - to recruit Tuntian people into the army.

Originally, the Tuntian people system left by Cao Cao for Cao Pi, in addition to solving the problem of displaced people, was to allow the Great Wei to explode troops at a critical moment.

When the war was tight the year before last, Cao Pi originally wanted to explode the army, but who knew that when he checked the number of people in Tuntian, he found that the family had already put their hands in their pockets. In order to avoid causing greater turmoil, Cao Pi did not continue to recruit Tuntian people into the army at that time.

But last year, as a large number of people in Guanzhong were fully favored and moved into Guanzhong, except for a small number of well-connected families and poor families, most of the people were incorporated into the ranks of Tuntian people by Cao Pi.

Today's Cao Pi, there is no need to worry about the loss of Tuntian people with the family before, and the increase of hundreds of thousands of Tuntian people also makes Cao Pi have the possibility of exploding troops.

Again, Cao Zhen didn't really suggest that Cao Pi mobilize all these Tuntian people. In this case, although the number of people is sufficient, the logistics are also a big burden.

Therefore, Cao Zhen's suggestion was to first have the imperial court come forward to build a certain guard post along the Luoshui and Yellow River, and then arrange for these tuntian people to take turns to serve in the guard post and act as guard soldiers.

In this way, the requirements for the soldiers will not be too high, and there is no need for special training for the people of the tuntian, and at the same time, the use of rotation will not have much impact on the harvest of the tuntian.

No way, there are really a lot of people in Cao Pi's hands this time.

When Cao Pi heard Cao Zhen's suggestion, he immediately felt reliable, and Jiang Ji and Liu Ye also felt that there was no big problem.

Although the imperial court needs to spend a lot of money and grain to build a large number of guard posts along the Yellow River and Luoshui, the expenditure of these money and grain is really nothing compared to the rebound of the Hedong family after the attack on Hedong.

One more. The guard station, and you don't need to build how luxurious, build a shed with lush grass, just shelter from the wind and rain, how much money can it cost?!

Compared with the loss of money and grain, the defense of Hedong is now the top priority.

In this way, Cao Wei's court, with the help of self-brain supplementation and improvement, began to deploy defenses along the Hedong region.

As for the attack on Guanzhong after the beginning of spring, this matter has been put on hold for the time being.

On the one hand, Cao Pi really didn't want to make a wedding dress for Dongwu, he was waiting, waiting for Dongwu to strike first, and then send troops himself, so that the benefits could be maximized.

On the other hand, Cao Pi did not have the time and energy to launch a war against Guanzhong for a while.

The most important thing now is to fill the defense loopholes in the Hedong region and ensure the safety of Luoyang, and the rest of the things can be talked about later.

To this end, Cao Pi specially sent his own town army general, Xiahou Shang, to Hedong to preside over the recruitment of troops and the construction of a guard station.

Oh, by the way, in order to prevent Zhang Xi from bypassing Tongguan from Pujindu and threatening the possibility of Hangu Pass, Cao Pi also asked Cao Zhen to lead 10,000 troops to Hangu Pass, take over the defense of Hangu Pass, and at the same time coordinate the overall defense of two or three hundred miles from Hangu Pass to Tongguan.

After doing these things, Cao Pi can barely put his mind at ease.

After that, he waited for the rats of Eastern Wu to launch a sneak attack on Jingzhou from Jingnan.

But wait, wait, wait, until the spring ploughing in March is about to end, and there is no movement at all on the Jiangdong side.

The Jiangdong muttering in Cao Pi's heart won't be a benefit and not do anything, right?!

Just thinking about it like this, the Eastern Wu side passed on the secret news through Jia Kui, who was stationed in Pengcheng.

The Eastern Wu side hoped that Cao Wei could create pressure in the north of Jingzhou to attract the attention of the Jingzhou army in Xiangyang, and it was best to attract them to the north to create favorable conditions for the Eastern Wu to launch an offensive.

As soon as this condition was mentioned, Cao Pi was suddenly unhappy again.

I know that these Jiangdong rats are not a good thing. Why don't you even fight a battle, you are so picky, you only dare to play sneak attack, right?!

But. There is no way, in the end, it is Jiangdong that Cao Pi sent someone to contact, the strategy is set by himself, no matter how troublesome it is, he has to find a way to solve this matter.

For this reason, Cao Pi once again convened Liu Ye and Jiang Ji to discuss countermeasures.

(End of chapter)