The US Military was talking of moving our troops south of the DMZ leaving only South Korean troops they would not hear of it.
South Korean Government says that SK is a partner of military alliance of Liberal countries, and on the other hand ,says that SK is a partner of Silk Road economic zone. (Look at the following photo.) SK wants a free bodyguard of USA from NK. SK would hope to be a vassal state of China in economic.
On the other hand, South Korea would not want to merge with NK, because NK is very poor. If SK become a vassal state of China really,China will make SK to merge with NK. So,SK need to behave an independent country.
The presence of US military guarantees the behavior. South Korea needs America's military .
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.