Comfort women were those who were forced into prostitution and sexual slavery for the Japanese military brothel during WWII. Although a majority were brought in from countries like Korea and China, there were others from Philippines, Thailand, Vietnam, Taiwan, and Indonesia. Lack of documentation makes the estimated women difficult to quantify; also, many of them do not come forward due to the shame and dishonor they felt as a result of having had their dignity and virginity taken away.
I found an interesting website, http://www.sfsu.edu/~soh/cw-links.htm, that serves as a resource site to link you into other comfort women related issues--support groups, information and history about these women.
Clay, any thoughts about this topic?