Not limited to Nazi-Germany and Imperial Japan the following belligerents are implicated in providing women for sex to military authorities, Indonesia, Hong Kong, Singapore, the Philippines, and Thailand. A series of searches revealed an informative article. A snippet of this credibly sourced article is provide below.
During the Second World War, approximately 3,500 Australian military nurses served in combat regions throughout the world. The vast majority were enlisted in the Australian Army Nursing Service (AANS), but after the Japanese advance and the fall of Hong Kong (December 1941) and Singapore (February 1942), a significant number of these nurses spent three-and-a-half years as POWs in Indonesia, Hong Kong, Japan and the Philippines.1 To date, considerable research has been undertaken on POW experiences in Hong Kong, Singapore, Thailand and Japan, albeit primarily focused on the testimonies of men and civilian women.2 This body of research utilises various methodologies, from Yuki Tanaka and Kei Ushimura’s efforts to reconcile Japanese war crimes with the corruption of the Bushido ethic and sexual violence in contemporary Japanese society, to Christina Twomey’s work on the imprisonment and repatriation of Dutch, Dutch–Eurasian and Australian civilian women and children. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3143890/