 It is also near Kwangchowan, a French-leased territory on the southern coast of China.The 33,920 km2 (13,100 sq mi) Hainan Island had a population of 2,200,000 at the time.The island was guarded by the 152nd Division, approximately 25,000 strong, under the command of Yu Hanmou, who was in charge of peace preservation in Kwangtung Province.