Battle School
From Orson Scott Card Wiki
A military installation, based in a space station orbiting Earth, designed to train and evaluate children as future officers in the International Fleet for the imminent battle against the buggers. It includes both "standard" educational techniques (such as classroom studies), and "games" designed specifically to develop the unique characteristics required of its students. One of the most unique features of the space station was the Battle Room, a large microgravity chamber where different "armies" competed.
