Diocletian's mind is nothing hard to guess.

Although he became the ruler of the Roman Empire, he did not inherit the position, but forcibly seized it by violent means.

In order to ensure that his rule would not cause resistance, he made a series of regulations, including the rule that after a certain period of time, he would abdicate and cede his position to his original deputy.

According to the time, Diocletian's abdication was a matter of the past few years, originally he wanted to launch a military campaign against the Persian Sassanid Empire in the last period of his reign, create a glorious record and then leave the glory.

But now he found that if he could go to the excessive Han Empire, which was known as the residence of the gods, maybe he could get more?

Even if he loses power, he may be able to get benefits that ordinary people can't even dream of!

Like what...... Eternal life?

He doesn't have the luxury of immortality, just being immortal is enough to make countless people crazy.

After all, Diocletian has stood at the pinnacle, enjoyed power, and he has enjoyed a lot of what he can enjoy, and now he hopes to enjoy these for a longer time, but the gradual passage of life and the aging of the body cannot be changed, if everyone is the same, forget it, but now I know that there is such a possibility, how can I be calm?

"Come on, come on!"

Liu Xuan had no interest in Diocletian, the current de facto ruler of the Roman Empire.

Moreover, the Roman Empire is not stable internally now, it has been in chaos all these years, and there are constant external troubles, maybe this Diocletian has just left the Roman Empire not long ago, and there will be an earthquake within the Roman Empire, maybe in the end, this Diocletian will settle down in the Han Dynasty?

"If you come, the Ministry of Rites will be in charge of receiving it!"

When Chen Lin heard this, he asked, "Is this ...... Should it be received according to the specifications of the emperor of another country?"

When the Ministry of Rites determines that it is responsible for foreign diplomatic work. A series of strict standards have been developed.

There are detailed rules for what level of country to send what level of envoy and what kind of standard to receive and according to the current global situation. The Roman Empire is one of the few countries that can be compared to the Han Dynasty.

In addition to the Roman Empire, there were only Kushan and Northern Wei. Originally, there was a rest (Parthian Empire), but it was destroyed by the Persian Sassanid Empire, and the Persian Empire has not really grown now, so it is not included in this class.

Emperors of this level came to the Great Han. It should be received according to the highest standard, but Liu Xuan smiled and waved his hand: "Wait for Diocletian to come to us first." Or is it not the emperor of the Roman Empire......"

Although Liu Xuan's words were quite speechless, it seemed that he was deliberately cursing Diocletian, but this is the truth.

Almost just three months after Diocletian left. A new round of power struggles broke out in the Roman Empire. These news were still transmitted to Dahan through Xu Shucai, because Dahan had not yet had the heart to develop the intelligence system to Europe, and just let Europe become a mess.

Liu Xuan felt that it was impossible for Diocletian not to think of this, but he was about to step down, so it didn't matter.

After letting all the ministers step aside. Liu Xuan stood alone on the arched bridge of the imperial garden, looking at the lake in a daze.

Rubbing his chin slightly. Suddenly, a very speechless thought came to mind.

"If you leave this Diocletian first, will you have a suitable excuse after you hit Europe?"

After all, the Roman Empire was the ruler of the original Europe, and who could say why he helped Diocletian to recover his homeland first? But this idea was immediately overturned by himself. ..., "I want to conquer all places, and I will not leave any force that dares to oppose me, even if it does cause some people to be dissatisfied?"

In other words, this Diocletian didn't even have a little effect on Liu Xuan.

"Even a woman can still be useful!"

With a low mutter, Liu Xuan turned his head and left the Imperial Garden.

The dull day has passed like this, and the plan for supporting the Rouran Department has been sorted out, and the next thing to do is to implement it.

All that is done now is to contact the Northern Zhou Yuwen clan, and then assign the task down, and then the Northern Wei Dynasty will be plunged into endless harassment.

At this time, it seems that Dahan has nothing to do again.

"Not necessarily, now that the Northern Zhou Dynasty has completely fallen to the Great Han, after a while, we can discuss the complete integration of the Northern Zhou into the Great Han!

Liu Xuan nodded, in the past few years, Guang and Xianbei have been competing, and they have almost forgotten that there is a Hun in the north of the Han Dynasty.

In fact, there were not many places directly bordering the Han Dynasty and the Northern Wei Dynasty - the northern part of Liangzhou and the northern part of Liaozhou, and the two places were slightly connected with the power of the Northern Wei Dynasty.

However, these two areas are also remote places for the Northern Wei Dynasty, and if there is friction in this place, there will be great pressure on the Northern Wei Dynasty itself.

The best route for these northern countries to attack the Han Dynasty happened to be occupied by the Xiongnu, and the route of directly attacking Liaozhou or attacking Youzhou was blocked by those three subject countries, that is to say, the war between the Han and the Northern Wei Dynasty has not really broken out, and there are also reasons for this.

It's just that for the Han, these troubles are only temporary, Liu Xuan has long been thinking about cleaning up the Huns, and once there is no obstacle from the Huns, then the Han and the Northern Wei Dynasty will be in direct frontal contact, and at that time, the two sides will have no other choice than to fight with real swords and guns.

And really fighting...... I really can't think of any chances of winning in the Northern Wei Dynasty!

Walking slowly, Liu Xuan went directly to the imperial study.

It's not that he really has nothing to do, in fact, the things he has to do all day today have been strictly arranged, and at this time, he arrived at the imperial study, which happened to be the time to see Zhuge Liang.

Pinching the time very accurately, neither delaying his own time nor delaying Zhuge Liang's work, these are also some habits that have gradually formed over the years, and this habit is undoubtedly quite good for officials who really do things.

"How?"

Now Zhuge Liang has served as the head of the household department, and Xun You, who originally served as the head of the household department, has long become one of the three princes, and he took over Cai Yong's class.

As for Liu Xuan, the old man, he has already passed away.

The old man was very calm when he left, after all, he had lived for a long time, and even his daughter was more than a hundred years old, what was Cai Yong not satisfied with?

Cai Yan also behaved very calmly, and did not cry or break his liver and intestines.

In fact, this has happened too much over the years, and everyone has basically practiced it. Including the Qiao sisters and Zhen Mi have sent away their relatives one after another, Cai Yan is the latest to experience the departure of her relatives, and with so many examples in front of her, she has already been prepared in her heart, so she will be extremely calm.

And after some changes in the court, the really capable ones eventually came out, such as Zhuge Liang, and now he has become the head of the household - the six books are now second only to the three dukes, and now Zhuge Liang is unlikely to go up, so he can only wait for the position of the three dukes to be transferred.

"Nowadays, the population of Dahan has been growing, among which Qingzhou, Yanzhou, Sili, Yongzhou and other places have the fastest population growth, and Yuzhou is still recovering because of the heavy blow it was hit that year...... As for Xuzhou, although the population growth rate is good, it has been moving to the south of the Yangtze River in recent years, so the population has not changed much!

After Zhuge Liang served as the head of the household department, he put forward several suggestions.

Among them is the large-scale sinicization of various ethnic minorities, and in order to ensure the smooth sinicization, Zhuge Liang proposed to plunder these people from the surrounding areas into the interior, and migrate the Han people in the inland to the surrounding areas for development.

The most striking example is that the Han Dynasty spent ten years plundering all the local natives in Yizhou (now Wanwan) and sending them all to Yuzhou for sinicization, and Yizhou was completely occupied by the Han people.

In addition, in order to better develop the southeast coastal area, Zhuge Liang suggested dividing the southern part of Yangzhou, and adding the eastern part of Jiaozhou to form a new state, named Guangzhou (Sun Quan did this in history).

As for Liaozhou, in addition to encouraging the Han people in the interior to migrate to Liaozhou, Zhuge Liang also used various ways to plunder the Xianbei population, in fact, in the past few decades, many Xianbei people in the three countries such as Beiyan have directly become the people of the Han Dynasty, which is one of the reasons why these three families have never been able to really leave the Han Dynasty.

Originally, there was a big Han in the back, and they only needed to desperately accumulate strength, but over the past few decades, most of the accumulated strength (including the population and scholars who know all kinds of knowledge) has run to the big han, and the big han will not discriminate against them in all kinds, and treat them directly as their own family, which makes it even more attractive for Xianbei people to go to the big han.

In fact, Zhuge Liang did more than that, the Huns, Qiang, Di and even the Kushan Empire and the Persians all have examples of settling in the Han Dynasty.

And Dahan's solution to this is: no matter who you are, you have to follow Dahan's rules!

Treating everyone equally, it was an edict issued by Liu Xuan from the beginning, and naturally no one dared to disobey it.

Over the past few decades, it has also proved that this edict of the Son of Heaven is extremely correct, so the Han is not only creating its own population, but also frantically plundering the populations of other countries.

"So, if the Han Dynasty exterminates the Xiongnu, will there be enough population to fill that area at present?"

Zhuge Liang calculated in his heart, and finally nodded firmly: "It should be enough!"