It has to be said that in the most serious years of extreme climate change, the development of Xia has come to a standstill, and one of the most important external manifestations, the increase in population, has also been greatly reduced, and it can only rely on the natural population increase of Xia Kingdom, and cannot get more population from the outside world.

At the end of the third year of the Xia calendar, the Xia country had a population of more than 93,000;

At the end of the fourth year of the Xia calendar, the population of Xia was more than 112,000, and the population increased by 19,000 in one year;

At the end of the fifth year of the Xia calendar, the population of Xia was more than 131,000, an increase of nearly 19,000 in one year;

At the end of the sixth year of the Xia calendar, the population of Xia was more than 139,000, and the increase in population in one year was less than 8,500;

At the end of the seventh year of the Xia calendar, the population of Xia was more than 148,000, and the population increased by just over 9,000 in one year.

If in the past two years, Xia Guo continues to absorb the outside population, it is expected that the current population of Xia Guo can be at least 10,000 more, there is no way, under the natural disaster, even Su Yan does not know how long Xia Guo can hold out, and he will not frantically accommodate the outside population, and wait until the natural disaster begins to subside, and then return to the previous state.

Fortunately, the other tribes know that the news of the "natural disaster has subsided" is not very likely, and the Xia Kingdom can take this opportunity to absorb some more people from the outside world, I believe that many tribes have been difficult to persevere, but it is a pity that under the natural disaster, there are fewer and fewer tribes in the area where the Xia country's fleet operates, and the Xia country can choose fewer and fewer targets.

Considering the fact that many tribes were wiped out under the natural disaster, the Ministry of Commerce temporarily reduced the original three foreign trade fleets to two, and waited until the extreme climate change was almost restored, and then restored to three, and then the Xia Kingdom would open up new routes.

The 1st Trading Fleet (Team) consisted of 16 A-type ships, headed by Li Zhi, to carry out the foreign trade mission of sailing westward along the main trunk of the Yellow River, ending in the grasslands, and the main goal was to find nomadic tribes on the grasslands to trade cattle and horses.

The second trading fleet (team) consisted of eight B-type ships, led by Lu Ran, and carried out foreign trade missions along the main trunk of the Yellow River to the east, ending at the fishing tribes, and returning to the Japanese tribes located in the tributaries of the Yellow River, with the main task of trading people.

Both trade fleets have a common task, which is to attract more tribes to join the Xia Kingdom, and this task is mainly on the first trade fleet, after all, there are very few tribes on the route of the first trade fleet.

On the fifth day after the end of the regular pilgrimage meeting in early spring, the two trading fleets set off from Zhongjing City and traveled in the opposite direction, and it should be noted that Su Yan's eldest son Ping followed the second trading fleet on his first outing.

This year, the eighteenth year of peace's life, eighteen years old, from the age of fifteen to adulthood, they have learned more from their father, mainly on how to run a country.

In fact, Su Yan doesn't have much to teach, and the rest needs the two sons to understand by themselves, experience it themselves, and then accumulate experience.

The eldest son, Ping, wanted to be a "traveler" and was thrown to the Ministry of Commerce by Su Yan, and the second son wanted to be a "mechanic" and was thrown to the Ministry of Industry by Su Yan.

Of course, they don't start from the bottom, Ping became the deputy of the head of the regiment Lu Ran, and An became the deputy of a middle and high-level of the Ministry of Industry, the main task is to see more and learn more and accumulate some experience, and the remaining time can be carried out on their hobbies, and they will change departments and positions in the future, and even become the city lord or minister, personally managing a city or a department.

The two trading fleets sailed for most of the day and left the territory of the Xia Kingdom, and soon the two fleets would come into contact with other tribes, and both fleets would carry New Year's gifts from the Xia Kingdom to the various tribes.

By giving New Year's gifts, contact the various tribes to determine whether these tribes still exist, update the map of the Xia Kingdom, and announce the return of the Xia Kingdom to these still existing tribes, and allow each tribe to join the Xia Kingdom.

The time came the next morning.

On the head of the second trade fleet, the main members of the second trade team gathered in front of a wooden wall, on which a huge map of the Yellow River basin was fixed, which marked in detail the territory of the Xia Kingdom and the areas explored by the Xia Kingdom, and small circles representing tribes were divided on both sides of the Yellow River Basin.

"In more than an hour, we can reach the section of the river where Tribe A is located, and I don't know if Tribe A still exists."

"I feel that the probability of Tribe A surviving is very small, the population of Tribe A is less than a thousand, the number of transactions with our Xia Kingdom is not much, the strength of the tribe is relatively weak, even if it does not die in the cold winter, it will be wiped out in the food war."

"Yes, the chances of Tribe A surviving are slim."

"Yes, yes."

There were only two people in the crowd who didn't speak, one was Lu Ran, and the other was Ping, the former, as the head of the regiment, mainly to observe the reactions of his subordinates, and if the subordinates came to a different conclusion from themselves, they would speak, and Ping was mainly to study.

Under the discussion of everyone in the second trade team, everyone has already set the life and death of Tribe A, Lu Ran's thoughts are similar to everyone's, with the strength of Tribe A, it is indeed difficult to survive the most difficult two years of extreme climate change.

More than an hour passed quickly, and the residence of Tribe A appeared in the field of vision of the head ship of the second trading fleet, and the lookout tried his best to look at the area of Tribe A, but he did not find a single figure, and there was not even a single fisherman by the river, which showed that the possibility of Tribe A's extinction was very high.

The second trade fleet is getting closer and closer to Tribe A, and it is possible to see the situation of Tribe A's residence more clearly, without any people, showing a dilapidated appearance, it is expected that no one has lived for a long time, there is a high probability that Tribe A has died out, and there is a relatively small possibility that Tribe A has moved.

This is the homeland of the A tribe for a long time, and it is adjacent to the Yellow River, which can fish for a lot of food, and can also trade with the Xia country, so the possibility of the A tribe moving is very small.

Since there were no people living in the area where Tribe A lived, the Second Trading Fleet had no intention of stopping and continued to sail forward.

On the map fixed on the wooden wall, the circle representing Tribe A has been described, and a "×" is described, indicating that Tribe A has been destroyed or disappeared, and there is no one in this area.

The second trade fleet sailed through the river corresponding to Tribe A, and everyone in the fleet knew about the "disappearance" of Tribe A, and unconsciously, everyone became silent, and Tribe A "disappeared" like this, which was a life, but it was swallowed up by the cold winter or the cruel food war.

Silent, sad, and with a hint of happiness, fortunately they are from the Xia Kingdom, and the cold winter and the cruel food war are not the opponents of the Xia Kingdom.