The rule of most writing — the shorter, the better — appears not to apply to Klay’s nonfiction. The half-dozen longest, meatiest and most probing essays and articles presented here share the lasting power of Klay’s acclaimed fiction. They were published separately, in different places over a decade-plus span. But read together they amount to an interwoven, evolving and revealing examination of Klay’s central topic: What it means for a country always at war, that so few of its people do the fighting.

Each of these pieces...is presented here as an independent struggle to find meaning on its own terms. Still, there is a sense of progression from one to the next. Klay is certainly no fan of the war machine — nor is he a pacifist — but he proves too wise a writer to fall for the trap of prescribing what others should think or feel about American military action. Instead, early essays in which he asks himself how he should feel about his experiences set the stage for bigger ideas.

... solidifies Mr. Klay’s place among the best of an increasing number of writers who served in Iraq and Afghanistan and, while recounting their experiences in combat realistically and unheroically, raise profound questions about the nature of contemporary warfare.

Military service is one identity that implicitly undergirds much of his writing, but he also claims other identities.

With care, Klay addresses questions of faith, guilt, and collective trauma, offering insights into military culture and the meaning of masculinity.

Compelling themes emerge from the first page.

A tightly focused collection of essays.

Incisive.

A closely observed set of essays on an age of endless war.