North Korea and South Korea...
How many Koreas are there in this world?
So there must be two of them.
So obvious.
No.
There is only one, because each of them is just part of Korea.
2
The fact is, a nation has broken into two, both hoping to reunify in the future.
All the arguments of whether there is one of two of them have political motives and are totally irrelevant and beside the point.