After the Zunyi conference in May 1935, under the command of Mao Zedong, the Central Red Army four Chishui, accounting for two of Zunyi, Guiyang, Kunming on feint, bypassing the Sichuan Yunnan Guizhou Hunan the Kuomintang army besieged 300 thousand. After the Red Army to the north of Jinsha River, into the Yi inhabited area. The Kuomintang troops want to put the Reds in the battle of the Dadu River to the south of anshun. However, in the northern part of Mianning County, Liangshan Yi sea, the Central Red Army advance troops commander Liu Baicheng and Yi Guo Ji Branch Chief Dan lobular married brother, lobular Dan led the local people along the way to escort the red army passed Yi Yi District, won the first victory in the battle for qiangdu Dadu river.