1931年“九一八”事变后 ,日军侵占我国东北三省 ,不断扩大侵华战争 ,国民政府一再妥协退让 ,致使日本侵略者的野心更加膨胀起来。 1937年 7月 7日 ,卢沟桥事变爆发 ,日本发动了全面的侵华战争 ,仅在一年多时间内 ,就侵占了我国东北、华中、华东、华南的大片领土。 1937年 9月 After the “September 18” Incident in 1931, the Japanese army encroached upon the three northeastern provinces of our country and continuously expanded the war of aggression against China. The national government has repeatedly compromised and concessions, causing the Japanese aggressor’s ambitions to further inflate. On July 7, 1937, the Lugouqiao Incident broke out and Japan launched an all-out war of aggression against China. Only in more than a year has Japan invaded the vast territories of northeast China, central China, eastern China and southern China. September 1937