When the time came to the fifty-first year of the Xia calendar, not only was the Sui Empire in turmoil, but the whole world was also in a state of chaos, and the vassal states that Wang Ze had previously divided were constantly expanding, and the world became even more chaotic.

First of all, Wang Ze's second son, Wang Rui, expanded rapidly in Taixi Continent, and since he led his troops to the west, he first established his own state between the Candle Dragon Mountains (Ural Mountain) and the Huajiang River (Volga River), but at first he was not in a hurry to quickly expand his territory, and he still remembered what Wang Ze told him.

Only the land that can be fully occupied is truly one's own land, but the strength of oneself is the most important thing relative to the land, including the army and the people under one's command.

Therefore, in the previous few years, even if he defeated several attacks by the Khazarian army, Wang Rui still devoted himself to development for a few years, and in a few years, the Western Qin State established a complete set of preliminary military industrial system on the east bank of the Huajiang River, and expanded his subordinates to millions of people.

When he had a million people and an army of 200,000, Wang Rui, who had become rapidly strong, finally showed his fangs, and quickly followed the Huajiang River south to capture the Khazar state between the Huajiang River and the Qingshui (Don River) in one fell swoop, and then quickly swept the entire region north of the Caucasus and wiped out the Khazars.

Of course, when Wang Rui swept through the entire Khazarian country, the Xia army stationed in the land of the river also intervened, and the Xia country needed a lot of steel resources in order to develop the land in the river, especially in order to build a long railway connecting the land in the river from the Xia country.

Although the Khazars are still a country with a low level of civilization, they have at least more than one million people, and they can provide a large number of slaves to the Xia Kingdom.

After the defeat of the Khazars, except for a few young and beautiful women who were left by Wang Rui, most of the others were sold to Xia Guo, which exchanged a large amount of property and food from Xia Guo, and also brought more help to Wang Rui's strength expansion.

After defeating the Khazars, Wang Rui crossed the Qingshui and continued westward, first defeating the Qazhars on the northern shore of the Black Sea, and letting these guys who were suspected of being a Turkic tribe cross the summer water (Dnieper) and flee to the Carpathian Mountains even farther away.

After the Qazar people fled, Wang Rui and his soldiers happily received the fat and large black soil they left, looking at these black land, Wang Rui and the soldiers under his command were all happy, and their generation who grew up in the Xia country certainly knew how fertile such black soil was.

At that moment, Wang Rui announced that any of the subordinates who migrated here with him, regardless of men, women, and children, could get 200 acres of land, and other soldiers could distribute more land according to their exploits after the war in addition to these basic cultivated land.

At this time, the soldiers of the Western Qin Kingdom were all excited, and they cheered and shouted long live.

However, Wang Rui's footsteps of the army did not stop there, and further west, the Eastern Slavs on the east bank of the Xia Shui (Dnieper) River had gathered and waited for battle.

Although these simple Eastern Slavs were very disdainful of the fighting power of the Qajars who had fled before, after receiving the admonition of the Qazhars, the leaders of their tribes united to form an army of nearly 100,000 men.

In fact, the barbarians of Western Europe, including the Slavs, were not as tall as the later generations, and their overall superiority over the yellow race was only after they obtained abundant food during the Great Voyage, when the Xia soldiers were much taller than the Slavs.

In addition, although the Slavs had an army of 100,000, the soldiers came from scattered tribes, and they could not form a strict military system at all, and the fate of these people when facing more than 150,000 cavalry of the Western Qin State can be imagined.

Even so, Wang Rui was not willing to fight head-on with these stupid Slavs, and now he was looking at his cavalry treasures, so these cavalrymen were constantly taking advantage of the speed advantage of the cavalry to constantly attack, and when they saw that the Slavs were tired, they attacked quickly.

After several days of assault and confrontation, the exhausted Slavs finally could not resist and prepared to retreat temporarily, at this time Wang Rui finally launched a fierce blow to completely defeat the Slavic army, and almost all of the 100,000 Slavic troops were driven by him into the vast water of Xiashui, drowning countless people.

With the defeat of 100,000 Slavs, the Slavs on the east bank of Xia Shui had no choice but to become Wang Rui's slaves, and the East Slavs on the west bank of Xia Shui had to quickly take their wives and children to flee while inevitably being sad, lest they be captured by the Xia army and leave their fellow clans on the east coast miserable.

However, what the East Slavs on the west bank did not expect was that Wang Rui did not continue to cross the summer water and attack westward after the great victory, because the land occupied by Wang Rui was now very vast, and the straight-line distance from the Candle Dragon Mountains (Ural Mountains) to the Xia Shui (Dnieper River) was also thousands of miles.

And Wang Rui only has more than one million people at this time, so a million people can't see a shadow of a single person for dozens of miles on the land within a radius of thousands of miles, even if Wang Ze supports hundreds of thousands of people after learning about this situation, but it is impossible to develop this land without tens of thousands of years.

After considering this, Wang Rui finally suppressed his inner impulse, stopped the pace of external expansion and began to bury his head in the development of his own country, while stabilizing the territory he had occupied, he continued to attack those indigenous tribes further north, after all, the threat in the north is often the greatest.

Unexpectedly, at this time, Wang Rui actually received a letter for help from the Roman Empire usurper Fucas, who staged a coup d'état in Byzantium and killed Emperor Mauris, and actually asked Xia for help.

Previously, Fokas led an army to the Avars in the Danube Valley, and when this large army reached the Danube, Fokas suddenly led his army to mutiny, and instead went south to return to the capital to launch a coup d'état, killing Emperor Mauriz and proclaiming himself emperor.

Because of the unjustified seizure of power and his tyranny, there were many people who opposed his rule, which led to the massacre of opponents in the capital city of Byzantium, and the Roman Empire fell into a divided civil war.

At first, Phocas used his own force to suppress it, but when Heraclius, the governor of North Africa of the Roman Empire, suddenly joined the ranks of opposing Phocas the year before, the civil war quickly spread throughout the Roman Empire.

Seeing the scale of the Imperial Civil War growing larger and larger, in order to consolidate his position, Forcas must defeat the most powerful Heraclius as soon as possible, defeating the governor of North Africa and the other small opposition forces that are easy to deal with.

He sent his eastern governor to lead the armies of Syria and Egypt against Heraclius, whose armies, especially those in Syria, had long fought against the Persian Empire and were considered a strong army, but in North Africa they were defeated by the army of Heraclius' son Nestas.

As the Roman armies in Syria and Egypt went west and were defeated, the Persian Emperor Kusru II, who saw the emptiness of the region, captured most of the eastern provinces of Syria and Mesopotamia and seized most of Egypt in the name of avenging his father-in-law, Mauritz the Great.

In the face of the many internal opponents, as well as the large attack of the powerful Persian Empire outside, Folcaston couldn't help but panicked, it seemed that this emperor position was not something anyone could sit on if he wanted to, so he began to look around for help.

At first, he wanted to find Wang Hui, who was divided between the Red Sea, but since the Persian Empire had seized Egypt, Wang Hui could not attack the Persian Empire without any benefit for the sake of Phukas, and Wang Hui was unwilling to help a rebel who killed the emperor.

Focas went to the west to find the West Slavs, the Avars, and even the Vandals and Lombards to ask for help, but these countries and tribes had been attacked by him before, so how could they help him?

In particular, the Avars (suspected to have migrated westward after the fall of Rouran) also united with the Persian Empire to prepare to attack the Roman Empire from east to west, and the other tribal states all had bad intentions, so Phocas's request for help failed.

At this moment, he suddenly heard that the Khazars, the allies of the Roman Empire in the northern part of the Black Sea, as well as the brave and warlike Khazars and Eastern Slavs, had been quickly defeated by another eastern tribe, so he was careful again.

When he learned that this powerful army only belonged to a country established by a son of His Majesty the Emperor of Xia, Fukas's eyes immediately lit up, there had been a great war between the Persian Empire and the Xia State, and if the Xia State reached out to help him, then the threat of the Persian Empire would not be a threat.

Fucas immediately sent an envoy to Wang Rui to ask for help.

Although the Roman Empire was a big trading partner of the Xia Kingdom, with the rapid development of hundreds of vassal states in the West, the importance of the Roman Empire, which was very important to the Xia Kingdom, was declining sharply.

A powerful empire that was rapidly declining in importance and was built by foreign races would obviously be a formidable opponent in Wang Rui's eyes, especially after Wang Rui established the kingdom in Taixizhou, and the vast expanse of rich and fertile black land on the northern shore of the Black Sea would face the threat of the Roman Empire's powerful navy.

If the Roman Empire weakened or even collapsed, it would be good news for the Western Qin Kingdom, so Wang Rui couldn't figure out how to respond to Fucas's request and send the envoy to the Xia Kingdom.

This letter quickly reached Wang Ze's hands, and how to sort out the political situation in Western countries was obviously a difficult problem.

Most officials in the Xia Council believed that a divided and war-torn Roman Empire was clearly not in the economic interests of the Xia Kingdom, and that even though the Roman Empire's quota in the Xia Kingdom's foreign trade continued to decline, it still had a quarter of the proportion so far.

If such a huge market is lost, it will be a powerful blow to the Xia sea trade, and at this time, the Persian Empire made another foolish thing, that is, after the occupation of Egypt, Culus II actually cut off this trade route again.

Unless the Xia gave the Persian Empire a large trade commission, the Persian Empire would prohibit the caravans of the Xia and his vassal states from passing through here to advance to the Mediterranean.

At this time, the Xia kingdom and the various vassal states were enraged by the stupidity of the Persians.