"You have to realise that both previous engagements with the Formics were mostly won by luck," Ender said, after a brief pause. "So what to do when the fleet finally got there-- that was the big problem. The International Fleet decided their best bet for good military commanders would come from children, because they'd be more creative, quicker to respond, less burdened by conventional thought. They set up Battle School. Everyone on the Jeesh and myself, we've been in Battle School since we were six years old-- and we're the ones who were picked to command the third invasion."