In this model of agricultural companies, tractors are indispensable agricultural machinery.

Not only Nyasaland, but also farms in Johannesburg need agricultural machinery, unless it is pure animal husbandry, there is not much demand for agricultural machinery.

Regarding agricultural machinery, in fact, there have been many applications, in 1831, the United States. McCormick creates a successful horse-drawn harvester.

In 1836, the first horse-drawn grain combine was introduced.

During 1850~1855, grain seeders, lawn mowers and corn planters were promoted.

These machines are basically powered by livestock, and to achieve higher efficiency, tractors powered by internal combustion engines are used.

In 1889, the Chaddar Engine Company of Chicago, USA, built the world's first agricultural tractor using a gasoline internal combustion engine, the "Baga tractor".

Because the internal combustion engine is relatively lightweight, easy to operate, and has high work efficiency, the emergence of the internal combustion engine has laid the foundation for the popularization and application of tractors.

Within a few years, countries such as Sweden, Germany, Hungary and the United Kingdom were manufacturing tractors powered by diesel internal combustion engines almost simultaneously.

The "Tape Measure Department" was set up by the agricultural company to replicate these diesel internal combustion engines and then further research to introduce more advanced agricultural machinery for use on farms in Johannesburg and Nyasaland.

Before getting advanced agricultural machinery, of course, the construction of farms could not be stopped, Nyasaland livestock was still quite a lot, when the expeditionary force withdrew, leaving behind more than 100,000 horses, these horses played a great role in promoting the construction of farms in Johannesburg, in Nyasaland, there are now more than 5,000 horses, relying on these horses, agricultural companies can easily turn the wasteland around Little Rock into farms.

For the traditional Chinese, the use of cattle is more to use farmland, or manpower, the advantage of using horse farming is fast, high efficiency, four horse-drawn ploughs, a day can reclaim 80 acres of cultivated land, the efficiency is basically ten times that of cattle farming, not to mention manpower, not to mention wasteland, even if it is cooked land, four or five adults a day can only open one or two acres.

In just one month, the Chinese have reclaimed nearly 100,000 acres of arable land around Little Rock, where not only cashew nuts, cotton, sugar, sisal and other cash crops can be planted, but also corn, rice, soybeans, cassava and other food crops, do not need too much, as long as the 100,000 acres of land are planted, it is enough to meet the consumption of 100,000 Chinese.

Of course, the "consumption" here should be supplemented with fish, eggs, milk, and other meat products, as well as essential vegetables for the Chinese, and in time, Nyasaland will definitely become the land of fish and rice in Africa.

Roque left Nyasaland early without waiting for the farm to harvest.

As Johannesburg's police chief, Roque couldn't leave Johannesburg for too long, and Joe Russell had more and more telegrams and complaints during this time.

On Roque's way back to Johannesburg, the Portuguese in the city of Tete finally could not hold it out and evacuated Tete with the help of a regular army from Lorenço Marques.

This time the Portuguese were clever enough to evacuate Tete by land, but instead of trying to evacuate Tete by land, they drove a fleet of ships along the Zambezi River to the vicinity of Tete, and then evacuated Tete through the Zambezi River to meet the Portuguese who had met Tete.

On land, the Yao people can still fight guerrilla warfare with the Portuguese, but on the river, it is definitely the world of the Portuguese, under the high-pressure rule of the Portuguese, the Yao people do not even have a fishing boat, and they are not capable of competing with the Portuguese on the river.

Lala was also very simple, knowing that under the premise of not being able to ensure the safety of the river, it was impossible to occupy Taite, so after the Portuguese withdrew, the Yao people ransacked Tete, and then burned the entire Taite with a fire.

The city was founded in 1531 as a centre of Swahili commerce until the Portuguese colonial era, and in 1531 the Portuguese established two settlements along the Zambezi River, one of which was Tte, which was an important centre for the ivory and gold trade in the mid-17th century.

Now all of this has been destroyed in the war.

Three days later, the Portuguese who had made a comeback were at a loss in the face of Tete, who was in ruins.

What about the Yao people?

What about the rebels?

Don't they want to be too special to this most important city in northwestern Portuguese East Africa?

After searching the whole city, the Portuguese did not find even a single Yao person, and the most important question in front of the Portuguese at this time was not to find the Yao people, but whether to rebuild the Tete.

There is no doubt that the city of Tete is very important, and it is impossible for the Portuguese to give up Tete, and to give up Tete means to give up nearly 100,000 kilometers of land in the northwestern part of Portuguese East Africa.

But it is difficult to rebuild Taite, not to mention the cost of reconstruction, and the more serious question is, if you rebuild Tete, what will the Yao people do if they repeat their old tricks?

The Portuguese fears were not unfounded, and the Tete problem had not yet been resolved, and at the end of June, the Yao besieged Marupa, an important city in northern Portuguese East Africa.

This is a really serious problem, there is no river like the Zambezi River near Marupa, the Portuguese can not easily evacuate people through the river, they can only retreat along the road, and the roads around Marupa have all been destroyed by the Yao people, and the retreat road is difficult.

What's more dangerous for the Portuguese is that no one can be sure whether the situation between Tete and Marupa will get worse next, if the situation between Tete and Marupa is just a coincidence, then even if the Portuguese suffer heavy losses, they will not be broken, and there will always be a chance to make a comeback.

But if the Yao people did it deliberately, then the prospects of the Portuguese in Portuguese East Africa are very bad, it is always easier to destroy than to build, the colonial stronghold that the Portuguese took hundreds of years to build, the Yao people can be burned overnight, and how much energy can the Portuguese have to destroy the Yao people while rebuilding?

It was impossible for the Portuguese to do so, so in early July, the Portuguese East African colonial authorities signaled to the Yao people through the South African Company that they wanted to have informal official contacts with the Yao.

What does informal official contact mean?

It means that it is not very good to fight and kill, so it is better for us to sit down and talk about it and see if there is any possibility of a peaceful solution to this issue.

Of course, this is not to say that the Portuguese surrendered to the Yao, so it was an "informal" contact, which means that the Portuguese did not agree that the Yao were negotiable.

However, in order to quell the resistance of the Yao people, the Portuguese were willing to give the Yao people certain benefits, so it was "official".

"It's just a matter of retreating, what are you talking about? Nothing to talk about. When Roque learned the news, he ruthlessly refused to negotiate.

Negotiations are impossible, at least at this stage.

Roque is using the resistance of the Yao people to the Portuguese, hoping to train a force that is good at guerrilla warfare, so before this goal is achieved, Roque will not let the Yao people and the Portuguese negotiate, as for the continuation of the Yao people's resistance against the Portuguese, how many Yao people and Portuguese will die, does this have anything to do with Roque?

It doesn't matter, it's not Chinese who died, and Roque doesn't care at all.

"Don't you want an outlet to the sea? Now is the opportunity to make a request. Xiao Si is eager to try, in terms of war, Xiao Si is not good at it, and the negotiation table is the "battlefield" that allows Xiao Si to give full play.

"What do you get by asking for it now? The Shire River is a tributary of the Zambezi River, will the Portuguese transfer their rights in the Zambezi River basin to Nyasaland? Impossible. Roque has a clear understanding of the Portuguese, the rights of the Zambezi River Basin are the core interests of the Portuguese in Portuguese East Africa, and the Portuguese will not give up unless they have to, and making this request early will expose the South African company and Nyasaland's ambitions for the Zambezi River Valley.

Therefore, Roque's purpose is to use the Yao people to continue to cause harm to the Portuguese, and when the Portuguese colonial rule in the northwest of Portuguese East Africa and even the entire north is completely paralyzed, and even endangers the area around Lourenço Marques, the Portuguese will really surrender, and it will not be too late for Nyasaland to intervene.

"You want the entire Zambezi River Basin?" Xiao Si was shocked by Roque's ambitions.

"No, I don't have that much ambition yet, I just want this part of Portuguese East Africa." Roque understated.

The Zambezi River, also known as the Liba River, means "huge river", the Zambezi River is 2,660 kilometers long, with a basin area of 1.35 million square kilometers, is the fourth largest river in Africa and the largest river in southern Africa.

The Zambezi River originates in the highlands of Rhodesia and flows through Portuguese West Africa, German South-West Africa, the Bechuana Reserve, North and South Rhodesia, Portuguese East Africa, and finally empties into the Indian Ocean.

What Roque wants is not the entire Zambezi River Basin, so Roque must occupy all the central and southern parts of Africa, what Roque wants is "only", but this section of the Zambezi River in Portuguese East Africa is actually not too large, 170,000 or 80,000 square kilometers.

"Hahahaha, how is it possible, then Lorenço Marques will become an enclave, and the Portuguese will not agree." Xiao Si couldn't help but laugh when he knew Roque's purpose, which was basically impossible in Xiao Si's opinion.

"Why can't it be?" Roque is serious.

"Why do you think it's possible?" Xiao Si didn't think twice.

"Come, look at the map, if the Yao people occupy Marupa and then continue to advance south, then what will be the result?" Roque was not in a hurry, and pulled Xiao Si to look at the map, right in Roque's office, there was a huge map of South Africa and Africa behind Roque's desk.

This map is not detailed enough compared with the map of the 21st century, after all, it is the era when there are no remote sensing satellites, the maps are shoddy, relatively speaking, Roque's map is already very good, thanks to the British colonies all over the world, the accuracy of the British map, is recognized by the world.

The topography of Portuguese East Africa on the map is very clear, if you ignore the salient around Tete, the topography of Portuguese East Africa is like a dumbbell, large at both ends and small in the middle, Lorenzo Marques is located at the southernmost point of the dumbbell, and Marupa is basically the center of the northern section.

Obviously, if the Yao drove the Portuguese out of the north, it seemed very likely, because the Yao had done it just a few years before, with the support of the South African Company, and now that Nyasaland had more support for the Yao, it would be easier for the Yao to drive the Portuguese out of northern Portuguese East Africa.

After driving the Portuguese out of the north, if the Yao continued to advance south, it would spread to the Zambezi River valley and the area around Lorenzo Marques in the south.

In these areas, Portuguese rule was also very precarious, starting in the 19th century, the Ngoni struggle against the Portuguese lasted for 70 years, at one point they occupied Lorenzo Marques, captured Sofala, confiscated the land held by the large estate companies south of the Zambezi River, and in 1885 the Ngoni chief Gengenhana united the surrounding ethnic groups to form a federation of Gaza, which was not suppressed until 1895.

The Shona people, who lived in the central Manica plateau, under the leadership of chiefs Umtasa and Mapondra, continued to resist Portuguese rule for more than 30 years from the 60s of the 19th century, and once expelled the Portuguese from the border area of Portuguese East Africa and Rhodesia.

As soon as the Yao people cross the Zambezi River, then the Ngoni and the recruits, who have already been suppressed, will rise up, which may cause the collapse of the whole of Portuguese East Africa, so the current form is far from the point where negotiations are needed, the Portuguese have not completely conceded defeat, and the South African company and Nyasaland are now in the background, and they cannot get the maximum benefit.

So, the Portuguese will continue to bleed until the Portuguese can no longer bear it.

Xiao Si listened to Roque's introduction with a blank face, and it was then that Xiao Si realized why Roque wanted to expel all the Bantu people of Nyasaland.

I can't stay, those Bantu people seem harmless now, but if there is a careerist like Roque behind them, then those Bantu people will become hungry wolves who choose people to eat.

Thinking of the Zulu people in Rhodesia, Xiao Si suddenly shuddered.

Roque has a good relationship with Xiao Si and has received huge benefits from Cecil Rhodes, so there is a high probability that Roque will not target Rhodesia, but what if there is another careerist like Roque?

Look at Rhodesia's neighbors, the Germans, the Portuguese, the Belgians, will these countries have the same bottom line as Roque in the face of interests?

The answer is simply yes, if Roque's model succeeds in Portuguese East Africa, then all ambitious colonial powers will be ready to move.

What made Xiao Si speechless was that such a yin way was actually invented by Cecil Rhodes first.

Therefore, Xiao Si does not seem to have a position to oppose it.