Children no more - Mark L Van Name

No child should ever be a soldier. Jon Moore knew that better than most, having learned to fight to survive before he'd hit puberty. So when a former comrade, Alissa Lim, asks for his help in rescuing a group of children pressed into service by rebels on a planet no one cares to save, he agrees. Only later does he realize he's signed up to do far more than he'd ever imagined. Jon's commitment hurtles him and Lobo, the hyper-intelligent assault vehicle who is his only real friend, into confrontations with the horrors the children have experienced - and with a dark chapter from his past.