The drama makers have conveyed this message well. The plot has lost steam somewhere in the middle, but the characters have done a tremendous job of keeping it alive and excited. The energy and charisma of each character is the peculiarity of this drama. The different relationships and feelings are beautifully depicted, especially between North Korean soldiers and Son Ye Jin, and how they take care of each other.
The other two cables - Seung Joon and Dan and their bad fate was sad - bothered me a lot because I focused on the main plot.
Pyo Chi Su also deserves a special mention. It was funny.
Seeing that North Korean village made me feel nostalgic. Poverty aside, this charm that the countryside has always had is missing nowadays.
Again, I really liked the way the makers tried to push boundaries and differences for love :) It might not be practical but it definitely feels good.
Desire to reunify the Korean peninsula.
We hope the world will see a unified Korea sooner, much before 2045!