In the spring of 1929, the conflict between Jiang and the Guangxi warlords intensified. Yu Zuobai, the director of the Guangxi Farmers and Workers Democratic Bureau of the Kuomintang, instigated his cousin Li Mingrui, who was the commander on the front lines, to defect, leading to a complete rout of the New Guangxi faction. Afterward, Yu Zuobai was appointed as the governor of Guangxi by Chiang Kai-shek, but the political situation in Guangxi remained turbulent. To consolidate his power, Yu met with senior Communist officials in Hong Kong, requesting them to send cadres to assist him in Guangxi. Deng Xiaoping, under the alias Deng Bin, arrived in Guangxi. Initially, Yu had second thoughts and Deng Bin was not welcomed; however, with careful arrangements by Li Mingrui, Deng and Yu reached an agreement for joint cooperation, and work on united front, military logistics, and agricultural movements began smoothly in Guangxi. Chiang Kai-shek was very dissatisfied upon hearing this and sent his confidant Zheng Jiemin to undermine Yu and Li's troops with money and to withhold their supplies, which nearly cost Li Mingrui his life due to a potential mutiny. In the face of the changing circumstances, with no time to consult the central authority, Deng Bin persuaded Yu and Li to swiftly transfer their troops and military supplies to Baise, a key city in western Guangxi, to prepare for an uprising at any moment.