Chinese Panzer-Ia light tanks were captured by Japanese troops during the battle of Nanking, Dec.1937

Chinese Panzer-Ia light tanks 

Camouflage Japanese Chi-Ha Tanks, Phillipines, 1944

Chi-Ha Tanks

On August 9 1937, First Lieutenant Isao Oyama of the Japanese Marines attempted an illegal entry into the Hongqiao Airport  of Shanghai, but was shot to death by the Chinese Peace Preservation Corps stationed near the military airport. It is still unknown whether Oyama initiated the intrusion on his own or acted on higher orders. Regardless, the Oyama Incident certainly heightened the tension in Shanghai