“九·一八”事变后,日本帝国主义于一九三五年五月又发动了“华北事变”。日本帝国主义的步步侵略,使中日民族矛盾上升为主要矛盾。抗日救国,成为中华民族的头等大事。一九三五年八月一日,中共中央发表了《为抗日救国告全体同胞书》,即《八一宣言》,并采取一系列措施,促进全国抗日统一战线的形成。“西安事变”的和 After the September 18th Incident, Japanese imperialism launched the “North China Incident” again in May 1935. The step-by-step aggression of the Japanese imperialists has raised the ethnic contradictions between China and Japan as the main contradictions. Resisting Japan and saving the nation has become the top priority for the Chinese nation. On August 1, 1935, the CPC Central Committee issued the “Compassionate Letter of All Men for All Rescue against Japan and Saving the Nation,” or the “August 1 Declaration,” and adopted a series of measures to promote the formation of a national anti-Japanese united front. “Xi’an Incident” and