Some lawschools do require a paper in order to graduate. (outside of extracurricular Journal requirements) Mine requires an upper-level writing requirement (this is on top of the first year legal writing briefs and memos), but it only has to be 25 pages. However, this paper can satisfy your law review/journal requirement. Also, you can either do this with a paper class or an Directed individual study (where you work with a faculty advisor).
But it looks like from the other responses that not all schools require this.
Also, I doubt you could get to go to another country to fullfill this paper requirement, as it is generally only worth 3 or 4 credit hours.
Finally, our journal notes and comments only have to be 25 pages. (but they can be longer)
Hello, in grad school for a Phd you have to write a doctoral thesis.
For Law school to get a JD do you have to write a big report too or a dissertation? Can you if you want to?
I know for some doctoral theses you can go to other countries. For example, an Economics Phd could compare France's economy to the United States economy. Is there anything like that for Law Students?