Seven great hates:
(1) The Ming Dynasty killed Nurhachi's father and father for no reason;
(2) The Ming Dynasty favored Yehe and Hada and oppressed Jianzhou;
(3) The Ming Dynasty violated the scope defined by both sides and forced Nurhachi to compensate the people who crossed the border;
(4) The Ming Dynasty sent troops to defend Ye He and resist the founding of the country;
(5) With the support of the Ming Dynasty, Ye He broke his oath and passed on his "old daughter" to Mongolia;
(6) The Ming authorities forced Nurhachi to withdraw from the cultivated land in Chaihe, Sancha and Fuan, and were not allowed to harvest crops;
(7) In the Ming Dynasty, the Liaodong authorities sent merchants and stationed troops in Jianzhou to conquer the country.
It can be seen that Nurhachi began to fight more because of ethnic reasons.