Chaos in the Ashes — William W. Johnstone

As a struggling America reemerges from the apocalypse, it descends into a new Civil War in the USA Todayâ€"bestselling author's dystopian military thriller.
 
In the fiery aftermath of apocalypse, America crumbled to the ground -- and was reborn as the Tri-states. Under the Rebel law of Ben Raines, there are no slums, no gangs, and no crime. But a new breed of anarchists and malcontents have banded together to destroy everything Raines and his army have risked their lives to build.
 
As devastating civil war turns race against race, brother against brother, and the nation's once-peaceful citizens into modern-day barbarians, the Tri-States explode in a firestorm of violence and chaos. Now it's up to Raines and the Rebel Army to bring the Union back together . . . before the American dream is lost forever.
 
Twenty-second in the long-running series!