唐繼堯
After Chen was driven out of Guangzhou, Sun returned again to assume leadership in March 1923. The party was reorganized along Leninist democratic centralism, and the alliance with the Communist Party of China came to be known as First United Front. The Guangzhou government focused on training new officers through the newly created Whampoa Military Academy. In 1924, the Zhilii clique fell out of power, and Sun travelled to Beiping to negotiate terms of reunification with leaders from Guominjun, Fengtian and Anhui clique. He was unable to secure the terms as he died in March 1925 from illness. Power struggles within the KMT ensued after the death of Sun. The Yunnan–Guangxi War broke out as Tang Jiyao tried to claim party leadership. In the north, there were struggles led by Guominjun against Fengtian-Zhili alliance from November 1925 to April 1926. The defeat of Guominjun ended their reign in Beiping.