I looked into this a while back, and there's a lot of problems with the statistics and the facts. Hard data that is not biased in one direction or the other is very difficult to come by. Anti-war groups have an axe to grind. Military statistics are likely to be self-serving at least at some level.

Add to this the reporting difficulties (same as those for civilians in many cases), military regulations on sexual contact, and sources that blur the differences between harassment and rape, bundling them into one category.

This is not an issue with easy answers or ready numbers. I have seen some numbers that are ludicrous (30 percent rape rates for female military personnel).