During the Eastern Han Dynasty, because of the great unification for a long time, the princes of all parties did not have such a deep understanding of the meaning of the Yellow River, the Huai River, and the Yangtze River, and the separatist forces.

By the time of the Northern and Southern Dynasties, with the deepening of practice, various regimes would find that the rivers, Huai, and rivers from the south to the north had a great deal to say for the separatist regimes.

Generally speaking, as long as it can deploy defenses in the Yellow River and resist the regime of the Northern Kou, even if the land of Youyan is not guaranteed and the Hetao is not there, it still has the foundation of the dynasty, at least it can sit firmly in the Central Plains; If you can only guard the Huai River, then at best it is "entering the Central Plains", and at worst it is "partial to the Jianghuai"; And if you can only deploy defenses in the Yangtze River area, it is basically a lingering breath and it is difficult to last long.

Eight hundred years later, the Song Dynasty, as a small expert in partial security, summed up the key point of "guarding the river must defend the Huai" for the southern secession forces.

Dongwu has broken halberds and sunk sand in Hefei in Huainan several times, and has made no achievements in Fancheng in Jingbei, in fact, it has been doomed to become a general trend.

Now the map next to Baitu focuses on drawing the river very wide, which is to reflect this, so Huainan has been regarded as a battleground by Baitu.

In the case that Yuan Shao in the north is about to become bigger, instead of putting pressure on the Central Plains and making Yuan Shao become the "dog king", it is better to let the Central Plains not move and let the dogs ...... Let the princes of the Central Plains and Guanzhong go and compete with Yuan Shao!

Bai Tu took this opportunity to shift his gaze to Jing Chu.

At this time, in Bai Tu's heart, there is a third map - a nine-square grid that is not very regular......

Hetao, Hebei, Hebei;

Xiliang, Guanzhong, Central Plains;

Yizhou, Jingzhou, Yangzhou.

Of course, the scope of Liangzhou is actually along the Hexi Corridor in the northwest, extending to the northwest of the Jiugongge, the west of the Hetao is Hexi, the west of Hexi is also part of Liangzhou, and Jiaozhou is further south...... At this time, they were all ignored, and the huge Hebei accounted for two squares.

In addition, there are three places, the white map is particularly focused on marking, Yizhou enterprising Guanzhong's key chong "Hanzhong", Jingzhou's enterprising Central Plains key chong "Nanyang", and Yangzhou's enterprising Central Plains key chong "Huainan".

It is precisely the existence of these key points that makes there a buffer of strategic significance between the "south" and the "north".

This is something that does not exist between the "east" and the "west", and if you choose to fight all the way from Jiangdong to the Central Plains and then to Hebei, then there will be no respite in the future.

The reason why the Three Kingdoms period existed was because the Shu State was in Yizhou, and the Wu State was in Jiangdong and Jingnan, and there were north and south barriers to block it, so there was an opportunity to establish the country separately.

For Bai Tu, there is a chance to breathe, so that the advantages of "farming and climbing technology" can be brought into play, and it can also make the people less affected by the war to a greater extent.

Although the development of the north and the south is very uneven at this time, and the more royal route should be "unifying the south with the north", but Baitu has already settled in Jiangdong, and there is no reason to regret it, and it is ...... Bai Tu didn't want to regret it, and the start in Jiangdong naturally had the benefits of Jiangdong.

Farming technology is his forte, and now he just lacks time.

And as long as Huainan is held in his hands first, it will never be worse than Dongwu.

During the period of the Three Kingdoms, the Eastern Wu with Jingnan and Jiangdong in terms of national strength was at least slightly stronger than the Shu State in Yizhou, but the Eastern Wu State never posed any threat to the Wei State, while the Shu State went out of Qishan and the Central Plains six times, and operated very commotionally - although it did not achieve decisive results, it also forced the Wei State to want to move the capital.

The biggest difference is precisely because Hanzhong was under the control of Shu, while Eastern Wu never mastered Huainan and Jingbei.

The three major points in the north and south, Shu won one and Wei won the second, so even if Wei's national strength was better than the sum of the two countries, Shu still had room for maneuver, while Wu was crushed to death.

At this time, the prosperity of the Central Plains is far better than that of Jiangdong, and Huainan is even more important to Jiangdong, without Huainan's Jiangdong, if you want to crusade against the Central Plains, you need all kinds of tricks and calculations, and the Central Plains with Huainan wants to crusade against Jiangdong, but you only need one trick - steady and steady.

After Lu Su pulled his perspective to the battlefield in Hebei, especially Chen Gong's strong testimony that Yuan Shaozhen had achieved a decisive advantage, and Gongsun Zhan was no longer able to return to heaven and was just barely breathing, the dispute between Shouchun and Moling was unified at this time.

Of course, if Yuan Shu knew the content of the Yuedan meeting of the Yangzhou Prefecture Pastoral Mansion, he would probably be furious-I still live in Shouchun! I still have an army of more than 100,000 in Huainan! Can't you see me?

Time passed, and in the ardent expectations of the Jiangdong ministers for Yuan Shu to be the emperor, three months passed in a blink of an eye.

I don't know if Yuan Shu will be moved, at this time, Bai Tu is more looking forward to him being the emperor than Huainan Wenwu......

Although the good news of the emperor has not yet come, there is already news that Shouchun is building a new mansion on a large scale, and there are illegal buildings such as the altar of the altar.

However, Lu Su still did not find any signs of a major drought in Huainan - judging from the earth's atmosphere, next year should still be a good year!

However, Baitu's plan to reserve relief grain and dig wells has attracted a lot of criticism.

Because of the digging of deep wells, as a key assessment item for grassroots officials, Danyang and the northern part of Wu County are busy with this, which has a kind of meaning of "there is something good at the top, and it must be very bad at the bottom".

It is said that there are still some rumors among the people, and the situation of Bai Tu is named "Deep Well Disease" - it is no wonder that when people were in the Qin Dynasty, there was a joke that "the king of Chu has a thin waist, and he starved to death in the palace".

However, the theory of "deep well disease" is said to be the location of a certain family in Wu County, and it began to spread......

Although Bai Tu closed his eyes, he knew who was doing something, but he didn't say anything for the time being, after all, ...... The source is Xu's, but it can be spread, which shows that everyone really thinks he is sick!

But that's all there is to it - with Bai Tunadu's merit of erecting a statue next to Shennong, the people are at most just laughing behind their backs, digging wells is not a matter of not taking care of food, and there are people who are willing to spend effort to mix rice when the farmers are slack, and it will not cause any public resentment.

Lu Su came to Bai Tu specifically to talk about it, but Bai Tu's opinion was the opposite!

Bai Tu didn't want to channel this so-called "criticism" at all, but wanted to secretly add fuel to the fire, after all, in Bai Tu's view, next year's drought will definitely happen.

Laugh at him now, and when the drought comes, you will be able to worship him high.

Those who want to use this to undermine his reputation will only cocoon themselves and eat the consequences.

Now because people spread a few words of gossip, they will make a big move, it seems that Bai Tu has no stomach, and even makes the other party coerce public opinion, and wait until next year these wells have become the lifeblood of the people, Bai Tu kneaded them at will, and the people will only applaud!

Lu Su thought that letting the rumors go would damage Bai Tu's prestige, and most importantly, he was not optimistic about the drought, so he only did not overly suppress the spread of the "deep well disease" under Bai Tu's proposal.

In Lu Su's words, I am afraid that this matter will be written in the history books, and it will be difficult for King Chu Ling to be saved by Bai Tu in the future - in the future, the example of upward and downward effect will not be "King Chu has a thin waist" but "hard disk deep well disease"!

It wasn't until January of the second year of Jian'an that Lu Su suddenly realized that the atmosphere in the northeast of the Yangtze River had changed greatly, and the source of the change was Huainan, which changed his opinion, and at the same time, Yuan Shu finally came with "good news"......