Since then, Lake Baikal has been referred to collectively as the North Sea.

The North Sea accounts for 20% of the world's freshwater resources, and 336 rivers provide it with abundant water.

What does this mean from an ancient military point of view?

It means that as long as you occupy the North Sea, you can go in all directions by ship through its huge water system!

The largest of these rivers is the Selenge River, which originates in Yanran Mountain, flows through the core area of the Mobei grassland, and finally flows into the Beihai Sea. The "subordinate territory" that Li Dingguo was about to build was located on the flat land at the mouth of the alluvial area of the Selenga River.

The North Sea is not a real sea, and as a lake, if you enter it, you have to go out.

The only large river that flows out of the North Sea is called the Angara River.

It flows northward, then turns westward, joins the Yenisei River, and flows north into the Arctic Ocean.

To be precise, this river is called the Lower Angara River.

There is also the Upper Angara River, located at the northeasternmost point of the North Sea and the third largest river that flows into the North Sea.

The target of Li Dingguo's attack was the Upper Angarask, at the mouth of the Upper Angara River. There are mountains on three sides, one facing the lake, and after the river valley pass, there is a huge and narrow open flat land.

Unfortunately, the open field, full of forests and swamps, would otherwise be perfect for farming.

"Look, Tomb Cow!"

The chief missionary under Li Dingguo's command suddenly pointed to the animals by the lake and shouted: "Scream."

"That's seals, and there's one on the northeast coast. Last time I went home to visit relatives on vacation, there were seal skins sold in Shenyang, and I heard that it was more expensive to ship them to Nanjing. "

Li Dingguo said with a smile.

Li Dingguo's wife and children live in Shenyang, and he plans to take his wife to his side when the children have grown up.

Seals, manatees, sea irrigs, sea pigs, fur seals......... The names of these animals have been around since the Ming Dynasty. Anyway, what do the animals on the beach look like, and they didn't have a name before, so add a sea character in front of them to name them.

In the Song Dynasty, this thing should be called the Sea Barbarian Lion.

The chief missionary's eyes lit up: "This is a seal?" I've heard of it, but I haven't seen it. There are so many seals in the North Sea that it is worth a lot of money to kill them for skins, and there will definitely be merchants willing to come in the future! "

Li Dingguo pouted, the businessmen might be willing to come, and the immigrants may have to rely on the exile of criminals.

Last winter, they had not yet reached the North Sea, and were only staying in the mountain nest in the southeast. Fortunately, there are thick wool felt canopies, and cotton jackets for the winter are also well prepared, otherwise I don't know how many people would have frozen to death.

The lowest temperature was minus 36 degrees Celsius, and the mercury thermometer almost froze.

I heard that far away in Luzhou, the thermometer is not a decoration, and the mercury will solidify in winter.

At this time, the boats we were on were all temporarily built this year. Whether the wood is dried in the shade or not, and it is necessary to bring in craftsmen and materials in the coming year to build a stronger warship.

Ma Cheng did not personally bring troops over, but only sent 800 infantrymen, and an old battalion commander later surveyed the formation, and by the way brought two Cossack prisoners as guides.

The two sides demarcate administrative districts according to the water system, and the places that can be reached by the tributaries of the lower reaches of the Bailong River are under the jurisdiction of the Andong Metropolitan Protectorate, and the west can reach as far as Chita. Chita is further west, there is no territory of the Beihai Metropolitan Protectorate, and the former Gujin River basin will also belong to the Beihai Metropolitan Protectorate.

The fleet headed north along the shore of the lake, passing by Ugis Barguzin, where the fortress was not yet empty.

At present, there would also be a garrison of immigrants outside the outer fortress, because it was located at the mouth of the seventh river that flows into the North Sea: the small river [Balbihongming].

As long as this place was firmly occupied, the Cossack stronghold along the banks of Barbihonming was completely blocked. There was no supply of gunpowder and other supplies, and sooner or later the Cossacks downstream would have to be killed by the natives.

"Leave seventy people and food, and keep that fortress!"

Yenisei commanded.

The Yenisei asked the Cossack guide sent by Macheng: "What is that called?"

The guide replied: "The river is called Barbihongming, and the domain fort is called Ust-Barguzin."

The Yenisei thought that the name was too awkward, so he said, "Now it will be renamed Gujin City and Nebuchu."

By the way, Bi Hong of Lower Li Dingguo and Lower Li Dingguo River were also renamed by Bi Hongming as Drinking Bihong and Drinking Horse River. Take the meaning of "drinking horses in the North Sea".

Not more than a hundred miles away, the Cossack guide pointed to the west and said: "From there we have been sailing west, in Baikal... On the western shore of the North Sea, there is not yet a stronghold called the Suvu of North Baikal. It is also the mouth of a river, and there is no fortress. "

"This is called the Shepherd Domain and the Shepherd River."

Bi Hongming's name is very arbitrary.

Li Zheng is shepherding sheep, and that allusion can't be derived from very few names.

The main domain of the Beihai Prefecture is "the subject country", which comes from the honorific title of "Sha subject country" to Bi Hong, and Li Zheng's official position is a vassal state, which is responsible for managing the affairs of the surrounding ethnic groups.

The Cossack guide continued: "In the southwest of the Beihai, there was no one on the Li Dingguo Su Wu, and it was not possible to follow the Shang Li Dingguo River and go straight to the Bihong Ming River area. However, the fortress was still repaired, and Su Wu of Shangli Dingguo was captured by the natives. From then on, the governor of Guzin

The supplies and population of the military region were changed to the north...... Shepherd River brought over. "

The Yenisei thought it was very strange, because I heard that the small area around Beihai was under the jurisdiction of Bi Hongming's overseers, so I asked, "Such an important domain pool, they have thought of taking it back?"

"I thought, but I don't think about it," said the Cossack guide, "the Lord of the Guzin Overseer, he has sent his troops to attack several times, but they have been attacked by the fierce Buwaiats. It was the Buwaiya that had suffered heavy losses for a long time, and the small tribes that had not been unified here were united by the beating

A big tribe. We were also fighting in peacetime, but every time the Cossacks were killed, we were able to split up and fight. The Overseer had also thought about bribing Neiying, but the Buwaiats were willing to cooperate. "

The corners of the Yenisei's mouth twitched when he heard this, and he despised the Cossacks.

That has to be created with less: small sins, so that the Mongols who are united and infighting can be divided into the opposite.

The Yenisei said, "Pull out the drink first, and then attack the shepherd city!"

The small army came to Drinksk by boat, but it was again empty.

It is estimated that there are only 200 Cossacks in the city, and they feel that if they hold on, they will simply flee to the sheep herding area to gather.

The Yenisei had to leave 50 men to guard the domain, and turned west, crossed the North Sea, and came to the sheep domain.

In the city, there were 368 Cossacks and less than 900 indigenous servants.

A small area in the domain is a fertile plain formed by the alluvial accumulation of several rivers. If it weren't for the hot weather, it wouldn't be a great place to farm.

Even so, the Sheep Domain was the North Sea region, the most important grain producing area of the Cossacks. Moreover, it was also suitable for grazing, and it was a breeding base for Cossack horses, and the Yenisei was really wrong to name this place the Sheep Domain.

The fortress of the Shepherd Domain was built very early, not for decades, and because there is no threat from the natives in the surrounding area, it has not been retrogressed and increased.

It's not that the domain fort is very large.

Before the thousand defenders were crowded, women, men, children, and slaves were all driven into the domain. Those Cossacks were really ruthless, in order to hold on to the fortress, they even wanted their own wives and children, and let their families be captured by the small army.

The Yenisei brought 2,000 infantry and 100 cavalry, but the Minfu only brought a few hundred.

The soldiers and the people dug holes together and used cold balloon bombing tactics sent by Mayu.

The terrain outside is less than that of Angara, and the inside of the domain fort is all flat land suitable for farming.

Depending on the direction of the wind, eight bastions can be bombed.

The Cossacks outside the fort, who had never participated in the battle of Angara, saw eight cold balloons floating over, and all looked up stupidly.

"Boom, boom!"

10,000 enemies landed and exploded, killing and wounding more than 70 people in an instant.

Bi Hongming was also surprised to learn about the situation: "Cold balloon bombing is so effective?"

Eight more 10,000 enemies were thrown at them, and the Cossacks and servant troops under the eight fortresses fled in panic to the distant domain wall.

The shelling is over!

Eight artillery positions, firing parallel at the domain wall.

Although due to the accuracy was sufficient, a small part of the shells missed. But as long as not a single shell hits the top of the domain wall, it can bounce and take away one: a small string of enemies, and the enemy troops gathered under the domain wall are smashed into a bloody blur.

There was no cold balloon under the fortress, and it was about to be shelled again when it ran under the domain wall, and the enemy troops in the city didn't know how to fight.

On the first day of the attack, it was bombed.

When the fuel of the cold balloon is still burned, the 10,000 enemies will be smashed, and they will be dragged back immediately, and the fuel and the 10,000 enemies will be lifted off again.

Bombed to the front, under the fortress - there were no enemy troops, and the enemy troops under the domain wall were all squatting close to the breastwork.

On the seventh day, every time the cold air balloon was lifted into the air, it was an opportunity to drop a bomb. So under the cover of the artillery, the location of the liftoff was changed, and the position was adjusted to smash down the domain wall.

In this case, Yenisei ordered the fleet to be sailed into the river.

Xiao Shao: Xiao Wei drove through the domain, and he was simply afraid of being shelled outside the domain fort.

The Yenisei planned to bomb the territory for eight days before attacking the territory, but on the evening of the seventh day, the Cossacks were under pressure.

Those guys were already outnumbered, and they lost their domains one after another, and even the Overseers died in Angara. As long as the brain is stupid, you will understand that the outside is also guarded, so you can simply take the night to slip away.

We ran away by boat, and we were found far out of the city.

The Yenisei camp was built by the river, and all the small troops were dispatched.

Some of them stood on both banks, lit torches, and fired guns indiscriminately out of the river, and the white ones also knew that they had hit a small number of people.

Some of them shot under the ship, trying to stop the Cossacks.

There were no cannons installed under the ships on both sides, and the cannons of the small army had been firing blindly. The Cossack cannons were always silent, because we had not lit the torches, and we wanted to rush through the darkness of the night, and if there was no light, we would become targets.

The fight was silent, but it looked vague.

On the morning of the seventh day, I checked the situation before dawn and saw planks and corpses floating everywhere on the river.

No less than one enemy died, no less one broke through, and there was no way to count it.

In this way, the Yenisei uprooted the lost Cossack strongholds around the North Sea. The reason why I played so badly, in addition to the cold balloon bombing tactics, the main reason was Bi Hongming's Bi Hongming: Xiao Jie.

In the battle of Angara, the Cossacks took away the main forces around the North Sea, and the Yenisei killed a small part of the airspace along the way.

The seventh wave of envoys sent by the Tsar arrived at Bihong on the Gujin River in the autumn.

Coincidentally, the Cossacks who broke through also brought the news to the outside.

The envoys were still followed by the old acquaintance Bayikov. It's just that the members of the regiment have been replaced, and a small part of them have been replaced by adult nobles, and we were sent by the tsar and the prime minister to learn the Chinese technique of retreating first.

"What? All the castles and strongholds around Lake Baikal are available! "

Bayikov: A little surprise.

It is only Baikal that has been lost, and even the Gujin River Overseer has it, and the Guangxiao Bi Hongming Governor Military Region now has not even a chief officer.