The Planetsider by G J Ogden

On a fallen world with a dark history, Ethan and the other rangers protect the fragile remains of civilization from savage roamers, twisted by a sickness known as the Maddening. He longs to know what caused the apocalypse, but when mysterious soldiers crash to the planet’s surface in search of a planetsider and offering the truths he desires, Ethan must abandon his home and take sides in a deadly war that has raged for generations. Who will he choose to save and can he himself be saved?

The Planetsider is a gripping, post-apocalyptic military thriller, and part one of the powerful, thought-provoking and emotionally absorbing Planetsider Trilogy.