Hu Hanmin
Now with an established national government in Nanjing, and supported by conservative allies including Hu Hanmin, Chiang's expulsion of the Communists and their Soviet advisers led to the beginning of the Chinese Civil War. Wang Jingwei's National Government was weak militarily, and was soon ended by Chiang with the support of a local warlord (Li Zongren of Guangxi). Eventually, Wang and his leftist party surrendered to Chiang and joined him in Nanjing. In the Central Plains War, Beijing was taken on June 1928, from an alliance of the warlords Feng Yuxiang and Yan Xishan. In December, the Manchurian warlord Zhang Xueliang pledged allegiance to Chiang's government, completing Chiang's nominal unification of China and ending the Warlord Era.