Girls: Does the fear of getting raped deter you from travelling abroad alone or with a girlfriend?

Are you trained, even to some extent, in any self-defence strategy? 

Nope, never went to places nor put myself into situations where I felt the need. My best self defense has been common sense. However, that's not to say learning how to defend yourself would be a wasted effort. It's certainly a good weapon to have in your arsenal.