大革命失败后,国民党蒋介石政府把共产党看作是“第一个敌人”,实行“攘外必先安内”的反动政策。国共两党成为势不西立、不共戴天的仇家积怨十载。“九·一八”事变后,蒋介石仍然坚持“抗日必先剿共,征诸历代兴亡,安内始能攘外”。但是,在抗日战争爆发后,国共两党却捐弃前嫌,共赴国难,进行了广泛而卓越有成效的合作,取得了抗日战争的最后胜利,并对世界反法西斯战争作出了巨大贡献。到底是什么原因促使蒋介石收敛其反共锋芒,在一 After the failure of the Great Revolution, the Chiang Kai-shek government of the Kuomintang regarded the Communists as the “first enemy,” and implemented the reactionary policy of “peace must first be settled inside the country.” Kuomintang and Communist parties become irreconcilable, unscrupulous enemy grudges ten contained. After the “September 18 Incident”, Chiang Kai-shek still insisted that "fighting against Japan must first destroy the communist party and bring about the rise and fall of all ages. However, after the outbreak of the anti-Japanese war, both the Kuomintang and the Communist Party dumped their hatred and went to the national crisis to conduct extensive and remarkable cooperation and achieved the ultimate victory of the anti-Japanese war. It has also made a tremendous contribution to the world anti-fascist war. What exactly prompted Chiang Kai-shek to converge on its anti-communist mammoth at one