John Birmingham 
Without Warning — Angels of Vengeance 

When an inexplicable wave of energy slammed into North America, millions died. Around the globe, wars erupted, borders vanished and a new reality was born. From shattered streets to gleaming new cities, three women are fighting wars of their own-for survival, justice and revenge. In South America, a special agent trails a ruthless terrorist, in Texas, a teenager vows to avenge a brutal murder and in Australia, a smuggler is hunted by unknown assassins. As a conflicted U.S. president struggles to make momentous decisions in the face of rebellion, the final battle for America and the new world begins.