Second Zhili–Fengtian War
In autumn 1924, after the Second Zhili–Fengtian War, Kou Yingjie was appointed to the Commander of the 2nd Mixed Brigade of the Hubei Army. In December, he promoted to the Commander of the 1st Brigade. Next October, he was appointed to the Commander of the 2nd Route Army by Wu Peifu. In 1926, Kou was appointed to the Supreme Commander of the Henan Army (). After Wu was defeated by the National Revolutionary Army (NRA), Kou also resigned his post.