After the defeat of Wu Peifu to Chiang Kai - shek , Jiang was publicly criticized by the Kuomintang .
In the Northern Expedition , Jiang cooperated closely with the Beiyang General Wu Peifu , who fought against Chiang Kai - shek 's National Revolutionary Army .
After the defeat of General   to Chiang Kai - shek , Jiang was publicly criticized by the Kuomintang .
In the Northern Expedition , Jiang cooperated closely with the Beiyang General Wu Peifu , who fought against Chiang Kai - shek 's National Revolutionary Army .