Generally speaking, after mastering the world, there will inevitably be a change of dynasty, so why does Japan have a very special shogunate system of government? And it lasted for hundreds of years. And this goes back to the earliest first shogun Genrai Dynasty. Before the Genrai Dynasty, there were actually people who served as "Shogi Shoguns", but it was only from the beginning of the Genrai Dynasty's "Shōi Shogunate" that shogunate politics appeared in Japan.
During the civil unrest between Zhicheng Shouyong, genrai surrendered the Kafue Takeda clan and eliminated Kiso Yoshinaka and The Hira clan. Later, the Oshu Fujiwara clan, a separatist force located in the northeastern region of Japan, was destroyed in the "Oshu Expedition", and finally unified Japan. In fact, such unification was strictly speaking only the unification of the martial family, after all, several previous forces were dependent on the imperial court. Even the Oshu Fujiwara clan was only a semi-independent separatist force, so for the imperial court, Japan has always been a unified state, and everyone has a common master, that is, the emperor.
Ne's general impression is different, after genrai dynasty founded the shogunate, in fact, the emperor and the imperial court did not immediately lose real power and became puppets, and the loss of the emperor's power was a process. During the shogunate period, Japan was actually a dualistic political system, and the shogunate obtained the right to appoint and dismiss the guardian and the manor from the imperial court, and its rights came from the imperial court, so naturally it would not subvert the imperial court. The manor land appointed by these shogunates was not actually the owner of the manor, but the person who directly exercised military, ruling, taxation, police, and other rights on the manor, and the land needed to pay a certain degree of annual tribute to the actual manor owner every year in a certain proportion.
In the late shogunate period, there were many chaotic parties, which had their own territories, but had no master-subordinate relationship with the shogunate, and many of the territories were newly developed new fields. During the Nanboku dynasty and the Muromachi period, the power of the guardian and the head of the land began to gradually expand, and the power of the Muromachi shogunate began to override the imperial court, and even had the ability to intervene in the succession to the throne. However, at this time, the samurai politics already had its own set of very mature and independent political institutions and administrative teams, and the appointment of the great general Zhengyi was still completed by the imperial court, and until the Warring States period, there were still remnants of the party supporting the Southern Dynasty. If the shogun of the Muromachi shogunate wanted to replace the Emperor of the Northern Dynasty, I was afraid that it would attract publicity from all over the world. As for the Edo period, with the example of the previous samurai regimes, there was no need to replace the emperor at all.