The Universe, Da?

So here's my explanation of what this place is. I see it kind of like Nekotalia and chibitalia. It's just another strange little side world. All of the countries and their capitals are students at Hetalia Academy for Leadership Training. They are still very much countries and I see this as a way to play off of their obvious issues, like America's eating problems, South Italy's inferiority complex and the like. Just have fun and try not to think too hard about the universe, it can cause headaches.