On the 9th of August 1937, two Japanese naval officers lay dead near the gate to Hongqiao Airport on Monument Road. Naval Sub-Lieutenant Oyama and his driver Saito Yozo were found with gunshot wounds after a confrontation with Chinese guards from the Peace Preservation Corps. The incident sparked immediate diplomatic fury as Tokyo demanded the withdrawal of all Chinese troops from Shanghai. Negotiations between the United Kingdom, France, the United States, Italy, Japan, and China collapsed within days over conflicting demands for troop withdrawals. By the 13th of August, small arms fire erupted in the Zhabei, Wusong, and Jiangwan districts, marking the transition from political tension to open warfare. Chiang Kai-shek ordered Zhang Zhizhong to launch offensive operations the following morning, setting the stage for three months of brutal urban combat.
Urban Combat Tactics
The 88th Division attacked Japanese positions in downtown Shanghai on the afternoon of the 14th of August 1937, only to be halted by entrenched machine gun nests and heavy bombardments from the Third Fleet moored in the Huangpu River. Chinese artillery was positioned too far back to provide effective support, forcing infantrymen to advance under cover of machine gun fire until they could throw hand grenades into enemy bunkers. The 36th Division later deployed British-made Vickers tanks to assist assaults, but poor coordination left them vulnerable to Japanese anti-tank weapons and flamethrowers in narrow city blocks. At the intersection of Zhoushan Road and Kunming Road, Chinese soldiers used the bodies of the dead as cover while attempting to scale steel gates impervious to their heaviest artillery. Brigade commander Chen Ruihe led from the front before being seriously injured, and battalion commander Li Zeng died immediately upon entering an alleyway where Japanese forces had set surrounding buildings ablaze. By nightfall on August 22 alone, the 36th Division lost more than ninety officers and a thousand troops in house-to-house fighting that turned streets into killing fields.