User blog comment:Xxkiiroxx/"Shingeki no Kyojin is Set in North America" Theory/@comment-25519336-20141008051241

I imagine it taking up large parts of Poland, Germany, and Hungary.

Also a thing to think about is Mikasa. Her kidnappers said she was a rare breed, and I imagine very few Japanese getting to Germany. Travel by boat through Egypt, dock in Solvenia. There would be global slowdown in Port Said. We've seen mountains. Germans probably filed in quickly, and while all the people waited to get in, Titans drawed to them and outlier countries like North Poland and ports in the Adriactic Sea became useless.

So everyone else got devoured, and they can't bring word back overseas. Other countries could build their walls too, maybe.