Category:International Borders. 

What I appreciate that there is some overlap, I believe that there should be a category for the main page about a specific border. There should be a category which includes Mexico – United States border and Canada – United States border without having to up through two intermediate categories and one with these and Russia–Norway border without having to up through three (four?) intermediate categories. This category would specifically *not* include things about specific things on a border like Øvre Pasvik National Park or the Adams–Onís Treaty but only *main* pages about the borders.