1937年12月南京失守前,国民政府宣布迁都重庆,但多数政府机构及军事委员会则迁至武汉,武汉实际上成为全国军事、政治的中心。1938年5月,日军攻陷徐州后即以武汉为进占目标。由于6月8日中国军队在花园口黄河堤岸决口,黄水泛滥,阻止了日军南进的路线,于是,日军改沿长江两岸主攻、沿大别山北麓助攻,分 Before the fall of Nanjing in December 1937, the Kuomintang government announced the relocation of the capital to Chongqing, but most of the government agencies and military commissions were relocated to Wuhan. Wuhan actually became the national military and political center. May 1938, the Japanese army captured Xuzhou after taking the goal. As the Chinese army stopped the Yellow River embankment at Huayuankou and flooded the Yellow River on June 8, preventing the Japanese from entering the southern route. As a result, the Japanese army shifted its main attack along both sides of the Yangtze River and assists along the northern foot of the Dabie Mountains.