Someday Soon - Brandon Zenner

The world ends. War doesn't: Those left alive following the unrelenting disease, and the war which reduced whole cities to radioactive rubble, were faced with the oppressive task of rebuilding society. From behind tall fences and guard towers, the colonies of Alice and Hightown were established, and a sense of normalcy prevailed. But now, a corrupt band of mercenaries, once thought to be extinguished, present their greatest threat yet to the fate of the colonies and humanity at large. Fueled by personal desire, and the need to survive at all costs, these mercenaries won't stop until the colonies have fallen and the citizens are all annihilated. This is the final war.