The French and Indian War was fought by French colonists allied with the Hurons Native Americans against the British colonists with their Iroquois Native American allies.
Basically:
French and Hurons vs. British and Iroquois
South Korea is a representative democratic republic. The people are known to be more conservative than its surrounding nations and people. A main goal of the South Korean government was to finally end the Korean war and work the relationship with there northern counterpart. There two main parties are democratic and liberty korea.
Hoped this helped
I think that the best answer is the geographic location: many other countries (Sweden for example) have tried being neutral at different times but did not manage to: but the fact that the US has only two boundaries, and that both other countries also have a history of fighting from independence from a European power, makes it possible that unless US decideds to get involved in international politics, it can be "left alone".