Has anyone ever read Orson Scott Card's masterpiece Ender's Game? If not, you really should pick up a copy if you ever get a chance. It's become my favorite novel of all time, due to its gripping plot, its moral questions, and the overall message that even the noblest of souls can be used for the greatest evils.
It's the first in a series of equally amazing, books, too:
1. Ender's Game
2. Ender's Shadow
(The story now branches into a present and future part)
3. Shadow of the Hegemon (Present)
4. Shadow Puppets (Present)
5. Shadow of the Giant (Present)
6. Speaker for the Dead (Future)
7. Xenocide (Future)
8. Children of the Mind (Future)
Basically, the story is about Earth in the near future (about a century away). Humanity is reeling from two massive attacks from an alien race known only as the "Buggers", insectile creatures just as intelligent and cunning as we are.
In their first invasion, the Buggers soundly defeated humanity's fledgling space fleet, and razed much of Earth. Asia was burned to a crisp, and the Americas and Europe fared only slightly better. But they were finally driven off, only to return years later, this time with a much larger fleet. But this fleet was different; we were somehow able to defeat it, and we have lived in fear of a Third Invasion ever since.
Now, seventy years after the Second Invasion that humanity barely survived, the International Fleet (IF) is training child geniuses to lead its armies and fleets in the coming war when the Buggers come again. Among them is Andrew "Ender" Wiggin, who has the potential to be the best of them all... if he survives.
Feel free to discuss and share your views on the book and the series if you've read it, or anticipation if you haven't. It really is an extraordinary set, topping even classics such as Dune, in my opinion.