Liu Ziyu led the main team, and did not stop too much at the mouth of the mixed river, and the team set sail upstream. Only five or six hundred men remained in the stronghold behind, half of whom were prisoners and laborers. All from Ezo and Sakhalin.

The Song army set up a transit port in Ezo, so it was natural to deal with the surrounding Ezo people. Naturally, there are different attitudes, some good and some bad, some friendly tribes, some hostile tribes.

The Song army traded with friendly tribes, exchanging grain, salt, sugar, cloth, and iron tools for furs and hired men, and even buying prisoners from the latter.

In a sense, this behavior is similar to the slave trade of the original plane.

It is to use profit as a temptation to induce wars between indigenous tribes, so as to obtain slaves and weaken the strength of indigenous tribes, and at the same time expand their influence among indigenous tribes.

It's just a lot smaller. The number of Ezo people is also very limited, and the number of captives purchased by Liu Ziyu is far from comparable to the black slaves in history, so the Song army also hired some laborers with materials.

As for the natives on Sakhalin, they are more unlucky eggs who were beaten by rabbits when the Song army's naval fleet docked on the island.

Just where the temple street of later generations was located, a camp with the banner of the Song character fluttering had risen from the ground. And in the next half a year, the three hundred defenders and the two or three hundred captives and laborers of the vassals here will go all out to turn this small small camp into a small port city. In this way, the labor force is quite huge.

Hundreds of captives and a hundred and ten Song soldiers were cutting down the huge trees at the edge of the forest. Not only did it take a lot of timber to build a city, but even a simple wooden trestle to make it easier for ships to moor, and it required a lot of timber.

In addition, in winter, it also needs a large amount of fuel, and in the absence of coal mines, wood is a necessary material for winter.

This port has been temporarily named Heishui Port by Liu Ziyu, which is taken from the meaning of the Heishui Governor's Mansion established by Li Tang.

Liu Ziyu's large army left only three or five days ago, and the soldiers who stayed here came into contact with the local natives. Now there are no large tribes in Huligai, and the tribes of three or five hundred people are all first-class 'powerful', and they can pull out one hundred and ten Ding Zhuang who are in the right year, which is definitely a small tyrant in the region.

Seeing the soldiers and horses of Liu Ziyu's troops before, he didn't dare to show his head once, knowing that after Liu Ziyu's army left, he had contact with Heishui Port.

Three hundred heavily armed elite soldiers, this force is absolutely powerful in the Tongtong River Estuary area at this time, not to mention that they still have a strong camp to rely on, but no matter how strong these people are, they still can't compare with the previous Liu Ziyu army.

The former completely crushed the surrounding Huligai tribes, but the latter gave the Huligai people a sense of 'dialogue'.

The people on both sides of the language did not understand each other at all. But the contacts between the two sides began with bartering.

A sharp wrist knife can be exchanged for a bear skin from the hands of the Huligai, this trade, absolute profiteering.

Once the transaction between the two sides is opened, the connection between the two sides will quickly become closer. Hu Ligai couldn't refuse the Song army's ironware, salt and sugar, and even more so the Song people's spirits.

These are all absolutely good things for the Huligai. It's a pity that the possession of good things has the wealth they crave at the same time, but also has extremely powerful force.

It is obvious that the Huli Gai people have no intention of working for the Jurchens, and even many Hu Li Gai people do not know Liu Ziyu's specific goals.

It's just that there are no stupid people among them, and they know very well how much of a threat Liu Ziyu's department, who is going upstream along the mixed river, can pose to the Jurchens.

But what does that have to do with them?

The leaders of these tribes are now more concerned with how to profit from it.

For Hu Ligai, fur is really not rare, and it is simply God's reward to be able to exchange fur for many necessities needed for survival.

And after half a month of time, when the first batch of supply ships arrived at the port, the port of Blackwater had already changed a lot.

Inside and outside the harbor, a hundred and ten defenders were working in groups to build the entire port town, driven by hundreds of laborers. Some of these people are cutting and processing timber, some are leveling the land and making adobe, and some are building wooden houses, piers and trestles, and other facilities, and the whole town is in full swing.

It's almost May, and it's Blackwater Harbor, and the climate is getting warmer. This is the most comfortable season of the year.

The construction of the entire city is proceeding at a rapid pace.

As the commander of the supply fleet, Liu Guangshi looked curiously at the handful of laborers in the harbor, who were dressed and treated differently from prisoners of war and Ezo people. The stature is generally not high, but all of them are very strong and sturdy, "Who are these people?" ”

Just looking at the physique, they are all good seeds for being soldiers.

"Commander Liu, they are the natives of the neighborhood, and they are Huligai." When the commander of the defenders heard this, he immediately replied loudly.

Liu Guangshi looked overjoyed, "So quickly closed the Huli change?" In this way, it will be difficult for him to settle down in the Andong Metropolitan Protectorate in the future.

"It's not a shackle. It's a simple transaction. ”

The guard hurriedly shook his head, he couldn't even understand the words, what kind of restraint was it.

Hu Li changed the people to Liu Ziyu's army before, so no one dared to provoke Heishui Port, which can be said to have laid a good foundation for it.

The other party came to contact cautiously, and the guard officer naturally greeted them with a smile, traded with them with some materials in his hand, and then exchanged the materials for the other party's labor, and was still in a very shallow communication.

Liu Guangshi has already got his own answer, the natives who can be driven with a few materials are really good natives.

The first goal of Anton's capital protectorate was to eliminate the Jurchens, especially the Jurchens. He was still a little hesitant before, thinking about whether he would do it in Andong or not, because Liu Guangshi was afraid of 'working in vain'. The outer northeast region is so vast, as long as the remnants of the Jurchens drill into the deep mountains and old forests, it is really too difficult to wipe them out.

But looking at it now, the Huli people are so well driven, does that mean that the natives of Anton are all 'bitter women for a long time'? After this day, the remnants of the Jurchens were cleared, and with the help of these natives, the difficulty was reduced too much.

Liu Guangshi knows very well that he is now settled in Anton, which is the best choice. Because that's the faint meaning of the one on the dragon chair.

Although Zhao Gou doesn't have a good impression of Liu Guangshi, Zhang Junzhi and others, but when the situation is very good, he doesn't mind bringing these two out again, in case these two people are also talents.

If you don't want the top, you don't even want to be the first-class, as long as you can be competent all the way to the soldiers, you can be a talent.

Therefore, don't care about the level of the position, this Anton Metropolitan Protectorate is the best destination for Liu Guangshi.

If he chooses to give up here, it will not be a single position that he will 'give up', but the future prospect.

After this village, there is no such shop, it is easy to give up now, and there will be no chance to pick it up in the future.