芦沟桥事变已经过去了半个多世纪。但在史学界,特别是在日本,却还有些人仍然认为是一次偶发事件。侵华战争时期曾两度出任日本大本营陆军部作战科长、一版再版的《大东亚战争全史》的作者服部卓四郎说:“对日本方面来说,芦沟桥事件完全是一次突然发生的事件。当时,日本正在致力于建设满洲,加强对苏战备,贯彻执行重要产业的扩充计划等, Lugou Bridge Incident has passed more than half a century. However, in history, especially in Japan, some still think it is an accident. During the war of aggression against China, he twice served as Chief of Operations Division of the Japanese Army Headquarters under the Forces of the Army and said: "For Japan, the Lugouqiao incident was a complete and unexpected one. At that time, Japan was working on building Manchuria, strengthening its preparations for fighting against the Soviet Union and implementing the expansion plan for major industries,