No journalist is better situated to reckon with the psychology of war than David Finkel. In The Good Soldiers, his bestselling account from the front lines of Baghdad, Finkel shadowed the men of a US infantry battalion as they carried out a gruelling 15-month tour that changed all of them forever. Now, Finkel follows many of those same men back home, in a journey that is less about geography than of psychological terrain, undertaken by people trying to heal or at the very least survive.