Ender's Game follows gifted child Andrew "Ender" Wiggin as he is recruited to Battle School, an orbital military academy in Earth's orbit, to train to defend humanity from an alien threat called the Formics. The novel describes Ender's experiences in Battle School, where he rises to command his own army through his tactical genius and ability to understand his opponents. It explores Ender as a uniquely gifted child struggling under the pressure of commanding Earth's forces in an intergalactic war where the fate of the human race hangs in the balance.