Since Mongolia was expelled by Zhu Yuanzhang and defeated and withdrawn from Guanwai, it has been in continuous decline, even if there are occasional times of strength in the middle, but it is also short-lived, and it will soon be defeated. In the long separation, the entire Mongolian tribe formed three large parts around the Hanhai Gobi on the Mongolian Plateau.

They are Monan, Mobei and Moxi Mongolia. Mobei Mongolia is also known as Khalkha Mongolia, the main area is now Mongolia, this part and the Ming Dynasty has less contact, that is, the five Inner Khalkha departments that moved south, participated in the rise of the Jurchen in Liaodong at the end of the Ming Dynasty, and was severely damaged by the Jurchen, and finally ......