Wu Dong has four emperors, namely Sun Quan, Sun Liang, Sun Xiu and Sun Hao. But in terms of merits, Sun Quan is definitely the best. Moreover, Sun Quan began to establish an heir, and the Soochow regime, which had always been stable, began to shake. If we want to rank the three countries according to their strength, the strongest is definitely Cao Wei, followed by Soochow, and the weakest is Shu Han. After Cao Wei destroyed Shu, Dongwu did not perish soon, but persisted for 17 years. How did this happen? In fact, after Cao Wei destroyed Shu, the Sima family overthrew the Cao Wei regime two years later, and Sima Yan proclaimed himself the emperor and established the State of Jin, so Shu Han was the first country to perish, but the strongest Cao Wei became the second one to be destroyed, so this period of time can also give Wu Dong a breathing space, otherwise the national reunification may be a few years ahead of schedule.

Historically, there were not many large-scale battles between Wu Dong and Cao Wei. Before that, in Battle of Red Cliffs, both sides took out all their possessions. As a result, Cao Cao was defeated and returned to the north, and the situation of three pillars was formally established. So the three parties lived a stable life for several years. When Sun Quan was in power, Soochow was very peaceful and there was almost no serious internal struggle, so the ministers at that time stood on the same front with the cooperation of Qi Xin. However, as long as there is an heir, the ministers of the DPRK will inevitably form a team, which is no exception in any dynasty. Therefore, when Sun Quan prepared for the death of an heir, there was an unprecedented struggle within Soochow, which led to the decline of Soochow.

In fact, it is not good for the emperor to have too many sons, and it is not good for him to have too few sons. Because Liu Bei has too few sons, he doesn't even have to choose. Liu Chan's direct responsibility is not good for everyone. Sun Quan had many sons, and the early death of his eldest son, Sun Deng, led to the "Second Palace War" between his descendants and Sun Ba, and the ministers of Soochow were divided into two factions, which completely angered Sun Quan. As a result, Sun He was given the death of Sun Ba, and only the children and grandchildren inherited the Crown Prince. Sun Liang was only 10 years old when he ascended the throne, which was similar to that in Cao Fang. There is only one result of the emperor's superior position, that is, he was controlled by the powerful minister at that time and had no real power.

According to the truth, Dongwu is the most vulnerable at this time. Why did you persist in 17 after the demise of Shu Han? The main reason is that there was a serious internal strife in Cao Wei, and the Western Jin Dynasty directly replaced Cao Wei. During this period, Sima Jia had to eradicate all the supporters of Cao Wei and establish his own dynasty without being threatened. As long as the regime stabilizes, it's not too late to deal with Wu Dong, so it gives Wu Dong a few years to breathe. However, Soochow can also preserve its strength and dare not attack easily, as long as there is really nothing to do. What's more, the Western Jin Dynasty had to deal not only with Dongwu, but also with the nomadic people in the north. At that time, the Western Jin Dynasty put a lot of troops into the northwest battlefield to put down the rebellion, and temporarily had no energy to manage Wu Dong.

Of course, there is still an old problem, that is, the Western Jin Dynasty was not good at water warfare, and Soochow had many experienced naval divisions, so it was able to resist the attack of the Western Jin Dynasty in the early stage, but the gap between the national strength and strength of the two sides was too great, and finally it could not resist. But on the whole, it is very good that Soochow can persist in 17 in this situation. In other words, other countries may win in five years. Mainly because the ability of later emperors is far from that of Sun Quan.