七七事变(1937年7月7日—7月31日),又称卢沟桥事变,发生于1937年7月7日,为中国抗日战争全面爆发的起点。日军在北平西南卢沟桥附近演习时,夜间日本军队以有己方士兵失踪为借口,要求进入宛平县城调查。遭到中华民国拒绝后,日本军队于7月8日凌晨向宛平县城和卢沟桥发动进攻,中华民国国军 The Incident of July 7 (July 7, 1937 - July 31), also known as the Lugouqiao Incident, took place on July 7, 1937, as the starting point for the outbreak of the Chinese anti-Japanese war. When the Japanese military exercises near the Lugou Bridge in the southwest of Peiping, Japanese troops asked for an investigation into Wanping County on the pretext of disappearance of their own soldiers at night. After being rejected by the ROC, Japanese troops attacked Wanping County and Lugouqiao in the early hours of July 8, and the Chinese National Army