Introduction to the Passage Conference: "Gongcheng Academy", the former site of the Passage Transfer Conference, is lined with bunkers and heavily guarded by the Kuomintang troops. The Red Army held the famous Passage Conference here and passed Mao Zedong's proposal to avoid the heavy troops of the Kuomintang army. Defensively, give up the suggestion of joining forces with the Second and Sixth Army Corps and instead march westward to Guizhou.