If you were born in space, what country are you?

I just saw a video of an international space station ACTUALLY in space. It got me wondered, what would happen if you were born in space? What nation are you, what country can you enter? In fact, can you even enter earth.

• If you can't enter earth does that mean you can control the spacecraft you were born in, or does no laws in earth apply to space, so you can be a slave, or abused in Space?

So if you even enter earth, who even are you?