[yodsanklai]

> The country I would be most hesitant about is France, they really don't like speaking English

I believe it's a stereotype and it's certainly not the case in CS research labs. I did my PhD in a French research institution (INRIA). In my group, a majority of the people didn't speak French. And of course, PhD students could write and defend their thesis in English if they wanted to (I don't know if they had to find a non-French external examiner, but it's likely to be the case that some examiners are foreign anyway).