第二次世界大战经历了一个由局部战争到全面战争的发展过程。一1931年“九一八”事变爆发,日本占领了中国的东北地区,英法操纵的国际联盟无视侵略者和被侵略者的根本区别,决议中日双方停止一切冲突,撤退军队,把东北划为“非武装地区”,由国际共管。美国国务卿史汀生代表美国政 The Second World War experienced a process of development from a partial war to a full-scale war. When the “September 18th Incident” broke out in 1931, Japan occupied China’s northeast region, and the international alliance operated by Britain and France ignored the fundamental differences between the aggressor and the aggressor. It was decided that both China and Japan should stop all conflicts, withdraw their troops, and draw the Northeast as “Unarmed areas” are jointly managed by the international community. US Secretary of State Cheng Tingsheng represents the United States