Maybe it's because they have been holding back for a long time, and as soon as they find an opportunity, the people of Shu Han want to send troops to fight Lu Bu.

Most of the ministers supported it, so Liu Bei made a decision to finally fight.

100,000 troops, the Northern Expedition to Hanzhong.

If it goes well, he can also go directly to Chang'an and directly capture Liangzhou.

In this way, Lu Bu's huge territory was cut off by him.

Perhaps, Cao Cao, who is in the West, will be self-reliant again.

Anyway, the more chaotic the better. The more chaotic it is, the more Liu Bei can get benefits.

And the two airships of Shu Kingdom, one flew to the northern grassland, and the other flew to the Kushan Kingdom.

Oceania is too far for the Shu Han airship to fly, so Liu Bei can only go to Cao Cao.

Similarly, although it is known that Huaguo has more powerful fighters, as long as it does not go to big towns, Huaguo will not be able to find out.

Even if they were accidentally seen by the people, the airship had already gone far away, and there was no positioning, and it would be impossible for the Huaguo fighter to do anything with their airship.

Yes, Huaguo has not yet developed large-scale radar technology, so it is indeed undetectable, and there is no way.

The main reason is that no one else has an air force, so Lu Bu does not invest much in this area.

But Lu Bu never despised the surveillance of Shu Han.

Therefore, as soon as Liu Bei's army moved here, the military department was the first to receive the news.

After Pang Tong got the news, he naturally urgently submitted the information to Lu Bu at the same time.

Fortunately, Huaguo Communications is getting stronger and stronger now, even if Liu Bei has just raised troops, Huaguo can know it all.

If it had been changed ten years ago, maybe it would have hit Hanzhong, and the north would have learned the news.

After getting the news, Lu Bu didn't care.

There are 30,000 elite soldiers of Zhang Wei in Han, and Liu Bei wants to conquer with 100,000 soldiers and horses, which is tantamount to a fool's dream.

With Huaguo's current military strength, Liu Bei is more than an order of magnitude worse.

Because Hanzhong is an important city, Lu Bu has a large number of thermal weapons here.

Now that Zhang Lu is a national teacher, Zhang Wei has also been promoted to earl, and the military and civilians in Hanzhong have benefited, and there is no reason to oppose him at all.

Therefore, Lu Bu was not afraid of Liu Bei's Northern Expedition at all, but was even more afraid that Liu Bei would not come.

Liu Bei's soldiers and horses did not come, and it would be more difficult for him to enter Shu. Liu Bei ran to die by himself, so he was happy.

And what Lu Bu is doing, he is guiding everyone to drill.

Before the root cause of the problem of water shortage in the north is solved, what Lu Bu can do is to save water and use groundwater.

With drilling technology, even hundreds of meters of groundwater can be used.

And the deep wells in the world were dug about ten or twenty meters at most.

It can be said that with deep wells, water use in the north can be alleviated within a few decades.

And to save water, the most important thing is the use of water for arable land.

As long as Lu Bu can bring down the whole world, then he will not worry about the shortage of food in China in the future.

Therefore, if it is not a good area to grow grain, then do not plant.

Dryland, or all dryland crops can be planted.

The reason why the Celestial Empire will always worry about food in the future is because China has less arable land and a large population.

But now the whole world is Lu Bu's, what are you afraid of.

Many staple grains can be stored for several years or even more than ten years, and when he repairs the granary in the future and stores more than ten years of grain, why worry about who dares to rebel.

Fortunately, the population is not large now, and although there is a shortage of water, the difficulty of relief is not as great as imagined.

Because Lu Bu only guarantees drinking water for people and livestock, and doesn't care about the land, it is much easier.

At present, China has a large amount of grain in storage, and even if there is a famine for two or three years, it will still be able to survive.

Although there are reserves and he is not panicking, he can see the dried seedlings, how can Lu Bu not feel heartache.

Food is the foundation of the country, and Jiqing Xu Si is a big food state, and now that ten percent of them are dead, how can Lu Bu not be heartbroken.

And there has been no sign of rain, and I am afraid that this year's grain will almost be lost.

Why was there a Yellow Turban Uprising, and why was there a great chaos in the world. This is the most direct reason.

While Lu Bu is relieving the disaster, he is also thinking about future development plans.

First of all, Heilongjiang has to emigrate.

As the largest grain province in China, this land must be developed.

Relying on the water source of the Heilongjiang River, this place is hardly afraid of drought.

Now that the population is small, Lü Bu only develops cultivated land with flat boundaries and uses mechanical grain cultivation.

Only in this way will Lu Bu be able to store more food before the population explosion arrives.

Moreover, the colonies were a great exchange of species, and various kinds of grain were stored.

Controlling the alien population and using this grain to feed the Han people was the central idea of Lü Bu.

In the past, in order to control the grassland, Lu Bu did not grow grain for the grassland, and it was all supplied from the inland.

Lu Bu decided to let go of this policy and let the northern grasslands begin to grow potatoes and all kinds of vegetables.

Potatoes are cold plants and are suitable for cultivation in grasslands.

With historical experience, Lu Bu doesn't need to verify it.

Even, greenhouse technology can be passed on.

In this way, the food supply problem of the grassland can also be alleviated.

In a word, Lu Bu wanted to break the problem of the overpopulation of agriculture in China in later generations.

He wanted the world's colonized population to farm to feed the Han Chinese.

This is called conquest.

Achieving this goal step by step is the source of Lu Bu's happiness.

With the airship, Shu Han's transportation has also been upgraded by one dimension all of a sudden.

Half a month later, Liu Bei's envoy arrived in Guishuang and met Cao Cao.

The messenger is Zhang Song, after all, he is facing Cao Cao, if it is a small shrimp, it is not equal at all.

It is also fortunate that there is a world map drawn by Lu Bu, otherwise Zhang Song may not be able to find where Guishuang is.

Zhang Song still knows Cao Cao very well, so he still has considerable confidence in this trip.

Zhang Song said confidently: "Gong Cao, now that you have millions under your command, and you also have the territory of Guishan and other countries in the Western Regions, your power is not inferior to Lu Bu at all. In this way, Cao Gong's ascension to the throne and title of emperor is the destiny of heaven! ”

"Liu Bei called you here just to plot against my father?" Cao Cao chuckled: "Go back and tell Liu Bei that if you don't want to die, it's best to surrender early." It is his unwisdom to go against the emperor! ”

Zhang Song was stunned: "Duke Cao, all the family members of the Cao family have moved to Guishan Country, and Duke Cao has no worries." Cao Gong is powerful, so how can Lu Bu not be afraid. The birds are all gone, and the good bow is hidden. If Cao Gong doesn't rebel, I'm afraid the Cao family will end up in ruin! ”

"Bold!" Cao Cao was instantly angry: "If you dare to fight again, my father will behead you." Someone, send off! ”

The guards entered and wanted to escort Zhang Song away.

Cao Cao's attitude was tough, and Zhang Song couldn't help but shout urgently: "Cao Gong, could it be that you have forgotten the hatred of Pi Gongzi!" If this revenge is not avenged, Cao Gong will be a father in vain! ”

"You!" Cao Cao was so angry that he exploded in an instant: "Dare to insult Wu'er, come here, and divide this person's five horses!" ”

Zhang Song was immediately dragged down, and Zhang Song, who knew that he was going to die, scolded even more.

"Hahaha, Cao Cao, you are a generation of heroes, but now you are licking and lackeys for others. I, Zhang Song, died today, and you Cao Cao will have to end up in the same situation tomorrow. It's a bear! ”

(End of chapter)