In fact, this is caused by internal contradictions in Mongolia. If the Mongolian iron plate had been nailed at that time, there might still be the possibility of the restoration of the Yuan Dynasty, but we all say that "misfortune flies separately". The collapse of the Yuan Dynasty caused many contradictions in Mongolia, a nation composed of many branches. After the Battle of Yueerhai, the authority of the Northern Yuan forces among Mongolian tribes was greatly weakened, and tribes began to run away one after another.

The battle of sea fishing led by aquamarine seriously weakened the power of Beiyuan. Teemo, the emperor of Tianyuan, and his prince Tianbao Nu fled to the depths of the desert, but a large number of other officials, concubines, livestock and soldiers of the Northern Yuan Dynasty were all captured by the Ming army. This battle made Tagus Timur lose his capital and his prestige among Mongolian tribes was greatly reduced. Tatar is a general term for northern Mongols in Ming Dynasty, but Waci belongs to a tribe separated from Tatar. First of all, it must be made clear that Tatar in chivalry is a different nationality from Mongols, but with the integration of the two nationalities, Tatar in a broad sense has developed into a kind of address for Mongols. We can say, "Tatars are Mongols, but Mongols."

Waci was not accepted by Mongols in the early days, but with the passage of history, the two sides gradually began to merge, so Waci was called Moxi Mongolia. Mongolia and China are both general names in a broad sense. As a multi-ethnic tribe, Mongolia has many branches and is composed of different tribes. Therefore, with the collapse of the Yuan Dynasty, the prestige of establishing the "golden family" of the Yuan Dynasty with Kublai Khan was greatly reduced. It is still the leader of Mongolian ministries in blood and name, but it has lost its actual control, which is similar to the relationship between Zhou Tianzi and princes.

However, after the war of fishing for children, the internal contradictions in Mongolia were fierce. At this time, the Mongols represented by the "golden family" were called Tatars. Due to internal disputes, Tatars and Waci people each established a "golden family" with Khan as the descendant, but the Ming Dynasty seized the internal contradictions of Mongols and began to divide to consume their internal strength. Tatars and Waci attacked each other until the rise of the Jurchen nationality and the reunification of the north, and then the Jurchen nationality was renamed Manchu. In the early and middle Ming Dynasty, the two regimes attacked each other. Although Zhu Yuanzhang and Judy launched the 13 Northern Expedition, neither the Tatars nor the Waci people were completely defeated, although nominally.