sentences:  It was withdrawn back to Japan in October 1939 and reorganized at that time into a triangular division, with its IJA 40th Infantry Regiment (Tottori) transferred to the newly formed IJA 25th Division.In August 1940, the reorganized division was sent to Jiamusi, northern Manchukuo under the command of Lieutenant General Tōichi Sasaki, and placed under the control of the Kwantung Army.For the next few years, it served as a border garrison force and supporting anti-partisan police actions.