sentences:  It was based in Shanghai and surrounding provinces primarily a garrison force to maintain public order and to engage in counter-insurgency operations in conjunction with the collaborationist forces of the Reformed Government of the Republic of China, and later with its successor, the Wang Jingwei Government.It was later tasked with deterring possible landings of the Allies in the lower Yangtze River area of east central China.It surrendered to the Chinese Kuomintang forces on August 15, 1945 at the surrender of Japan and was disbanded in Shanghai.