七七事变
The Japanese 2nd Army was raised again on August 23, 1937, and placed under the command of the Japanese Northern China Area Army as reinforcement to Japanese forces in China following the Marco Polo Bridge Incident. The 2nd Army participated in the North China Incident, Tianjin–Pukou Railway Operation, Battle of Xuzhou and Battle of Taierzhuang before being demobilized on December 15, 1938.