《明史·列传·卷一百九十九》
明太祖平定蜀地后，想攻取云南，便把大军都集中到辰州、沅州，试图削弱各蛮族的势力以打通往蜀地的道路。
明太祖既平蜀，规取云南，大师皆集于辰、沅，欲并剪诸蛮以通蜀道。
After the founding emperor of the Ming Dynasty pacified the Shu region, he intended to conquer Yunnan, so he concentrated the army in Chen Prefecture and Yuan Prefecture in an attempt to weaken the power of the barbarians in order to open up the road to Shu.