User blog comment:Saturn120/Have Wars Strained Relations?/@comment-10432262-20140527190901

Relations can quickly change, depending on what is useful for each nation. Alliances are made for a nations benefit, and enemies are made because they are in the path of achieving a goal. Once the USA was surely lost, Britain went on to the largest colonial empire in history. And North and South Korea are a divided people, although this "grudge" is probably because of the different ideologies of the two nations, or better said, one nation and one supreme leader.