If Sima's family didn't claim to be the emperor and establish the rulers, wouldn't there be the later Five Chaos in China?

The fundamental reason of "five verticals" is the mistake of immigration policy in Wei and Jin Dynasties, and the rebellion of the Eight Kings is one of the important incentives.

As early as the reign of Cao Wei, due to years of war at the end of the Eastern Han Dynasty, the population dropped sharply, the central and local finances plummeted, and agriculture was abandoned. Therefore, the imperial court issued the policy of "emigrating to the real frontier", and moved the conference semifinals outside the northern frontier fortress to the mainland. The Hu people who moved in in the early days were mostly used for rich households and laborers, and most of them belonged to Han landlords. In addition to Cao Wei, Shu Han also recruited a large number of Qiang and Bian soldiers in the Northern Expedition. During the suppression of Shanyue, Wu Dong also plundered a large number of Shanyue people as laborers.

Later, the rebellion of the Eight Kings broke out in the Western Jin Dynasty, and all the princes and kings were preparing horses and constantly recruiting troops. Some vassals in the frontier began to attract the attention of these conference semifinals, and many conference semifinals who were originally farmers also armed themselves to participate in the battle. For example, Schleswig, who later established the post-Zhao Dynasty, belongs to this kind of person. He first joined the team of Chengdu Wang Sima Ying. . Other vassals directly contacted the strongmen of the conference semifinals beyond the Great Wall and let them enter the customs with high officials and generous salaries. Liu Yuan, for example, was a southern Xiongnu Khan, and later established the Han State. He was knighted by Sima Yan in his early years, and was invited by Sima Ying to fight in the south during the Eight Kings Rebellion, and finally became a champion general.

Of course, the end result of this is to lure the wolf into the room. These immigrants are either oppressed or want to seek hegemony. They rely on force to expel Han officials and establish their own political power. The first was the Han State established by Liu Yuan (later changed to former Zhao). However, Hu people generally don't know how to govern the country, and some great Hu people's regimes soon fell apart in large and small struggles, forming a situation of "five Hu and sixteen countries". In other words, the conference semifinals directly created a rebellion in the mainland. Many people misunderstand that Wu Luanhua is rashly defined as a simple foreign invasion, but it is not. They call it anti-customer-oriented: many of the founding monarchs of the sixteen countries lived in Han as early as their parents' time.