Battle of Ding Mao: A battle between the Ming Dynasty and the late Jin Dynasty in Korea, which ended with the victory of the Ming Dynasty and the late Jin Dynasty being repelled to the north bank of the Yalu River.
Battle of Ningyuan: The Ming Dynasty gave up all the land outside Shanhaiguan Pass, and generals and soldiers fled back to Shanhaiguan Pass. Yuan Chonghuan is alone in Ningyuan. With the help of Mangui, Zu Dashou and ten thousand soldiers, the 130,000 troops of Nurhachi were repelled. During the battle, Nurhachi was suspected of being hit by a shell (suspected, unconfirmed) and died a few months later. This battle contained the attack of Houjin. But this is not a decisive battle.
Victory in Ningjin: After Nurhachi's death, Huang Taiji ascended the throne and attacked Ningyuan and Jinzhou. Return in a fiasco. Heavy casualties. Both the general and the army were damaged.
Battle of Jinsong: Huang Taiji attacked the Guanning defense line, and Hong Chengchou led130,000 reinforcements to support and destroy it. Hong Chengchou surrendered. At this point, except Ningyuan, the Ming Dynasty had nowhere to fight in Liaodong.