International Divorce

Is there such thing like this? Is it possible to have this kind of divorce? I am not talking about myself just to clear it out because I know my friends will start to wonder why I am writing and asking about this. I know somebody who is going through a difficult situation with marriage and they have children. I don't know a lot of stuff about divorce unless if I really spend time to search and read in the internet. But it would be nice to hear it from somebody who went through international divorce so I can share information that may be helpful to my friend