Ender's Game: The story of a young, brilliant boy who is destined to save humanity by leading a strike force against an alien race that hasn't been seen by humans in seventy years. Though the story takes place in the future, the problems faced by the characters are those humanity faces today.
The cold war is over now, but some twenty-two years ago, people in America and Western Europe still had a clear enemy in the Soviets. Communism vs. capitalism, west vs. east, us vs. them. There were harsh feelings on both sides, yet what really was the difference between the sides? The differences were trifles, and I don't think there is need to elaborate, but just to say that the world was divided in two for some seventy years because people couldn't agree on how economies and governments should work.
Seventy years. That was the approximate duration of the cold war, and it was the time between the Second Invasion and the Third Invasion.
Coincidence? Yes, but a nice one to point out if one wants to call Orson Scott Card a visionary writer. There is the difference though, that after seventy years in Card's world, human forces have a confrontation with their long-time enemies, and in our world, communism sort of fizzled out in the early nineties because of numerous problems throughout the eastern block.
Ender's Game is partly about this struggle that all Americans went through during the cold war, but there is certainly more. In fact, the more part is the important part because it is slightly subtle. Since in the book there is actually obvious parallels drawn to the Soviet Union with the so-called Warsaw Pact, and since the Russians are actually used to represent the, what else, Russians, there isn't really any need...