China Expeditionary Army
After the Lugou Bridge Incident, the Japanese China Garrison Army was reinforced with the Shanghai Expeditionary Army. This force was further supplemented by the Japanese Tenth Army, and marched inland from Shanghai to occupy Hangzhou. In October 1937, this force was renamed the Japanese Central China Area Army. After the fall of Nanking, the Central China Expeditionary Army was formed. On September 12, 1939 by Army Order 362, the China Expeditionary Army was formed with the merger of the Central China Expeditionary Army with the Northern China Area Army. It was headquartered in Nanjing throughout the Second Sino-Japanese War.