蒋介石制定的“攘外必先安内”的反动政策曾是国民党处理内政、外交、军事及其相互关系的一个基本政策。它对于九一八事变后的中国政治和中国人民的抗日战争造成了极为恶劣的影响。对这个政策的探讨是进一步研究蒋介石的政治思想、中日关系史和国共两党关系史的重要内容之一。一“攘外必先安内”的政策究竟在何时形成与确立?海峡两岸的许多学者的认识颇不一致。大陆学者的看法大致有三种:其一。蒋介石在1932年一二八事变之后确立;其二,蒋介石在九一八事变以前提出,《淞沪停战协定》签订之后正式确立;其三,蒋介石在九一八事变以前酝酿产生,同年11月30日由蒋介石正式提出并把它作为南京政府的“基本国策”。台湾学者对这个问题的看法,有的认为1931年7月蒋介石决定“攘外必先安内”是一种策略;也有的认为在一二 The reactionary “aggression and internal precaution” policy formulated by Chiang Kai-shek was once a basic policy of the Kuomintang in handling the internal affairs, diplomacy, military affairs and their mutual relations. It has had an extremely bad influence on the Chinese politics after the Sept.18 Incident and the Chinese people’s war of resistance against Japan. The discussion on this policy is one of the important contents to further study Chiang Kai-shek’s political thought, the history of the Sino-Japanese relations and the history of the relations between the two parties. When exactly the policy of “settling into peace outside the country” is exactly formed and established? The understanding of many scholars across the Taiwan Strait is rather inconsistent. Mainland scholars generally have three views: First. Chiang Kai-shek was established after the January 28 Incident of 1932; secondly, Chiang Kai-shek proposed before the September 18 Incident that the “Songhu Armistice Agreement” was signed; and third, Chiang Kai-shek deliberated before the September 18 Incident and in November of the same year On the 30th, Chiang Kai-shek formally proposed this as the “basic state policy” of the Nanjing government. Some scholars in Taiwan think of this issue. Some think that in July 1931, Chiang Kai-shek decided that “it would be the first before Ann Armed Aggression.” Some think that in one or two