Unify the ministries of Jurchen.
Before Nuerhachi unified Jurchen, there were many Jurchen tribes, and the Haixi women were really the most powerful at that time. But after several battles between Nuerhachi's army and Hercynian Jurchen, Hercynian Jurchen was gradually disintegrated by Nuerhachi. Nurhachi was also obedient to the Ming Dynasty. On the surface, obeying the command of the Ming Dynasty was the confidant of the Ming Dynasty, but secretly he wanted to unify the Jurchen and form a powerful military force for himself.
Establishment of the Eight Banners Army
In order to successfully create the Eight Banners system and unify the Jurchen, another favorable strategy and scheme is to basically act according to one's own wishes in the face of the powerful Ming Dynasty, without provoking any disputes or opposing any strategies of the Ming Dynasty. When Nurhachi was already called the Great Khan, Ming officials reported to the emperor that Nurhachi was still an obedient national leader! In other words, Nurhachi's performance was not noticed by the Ming Dynasty, including Nurhachi's self-reliance as emperor in his later period.
Flag system (Manchu in Qing Dynasty)
It should be said that the Eight Banners system is the most powerful weapon for the late Jin army to seize the Ming Dynasty and the country. The Eight Banners system is divided into four colors: yellow, white, red and blue, which are the main colors of the Eight Banners. Other colors were reorganized in Nurhachi, and then gradually formed the Eight Banners, such as yellow, white and blue! The Eight Banners system is not only a military system, but also involves politics, economy and other aspects. The Qing dynasty ruled the later generations for hundreds of years with the Eight Banners system! It also made the Qing dynasty gradually prosperous.