Many Asian women did indeed provide “comfort” services to the Japanese Imperial Forces during World War II, but I do not believe they did it at the point of a gun nor was it sexual slavery.    Throughout history, military forces have had no problem finding “comfort women” regardless of the country in which they operated and they were able to find them without kidnapping, coercion or threats of any kind.  Wars create horrible conditions which cause people to resort to often unthinkable means to survive.  For many women, it was the use of their bodies, and there usually was more supply than demand.  I personally witness this during the Korean War and during two years in Vietnam.  Some members of the Imperial Japanese forces no doubt forced women to have sex, which, of course, is rape, but I believe the “comfort women” who served the Imperial Japanese forces in brothels that sprung up and operated near Japanese bases did so voluntarily for pay.