THE LONG WALK is a raw, wrenching, blood-soaked chronicle of the human cost of war. Brian Castner, the leader of a military bomb disposal team, recounts his deployment to Iraq with unflinching candor, and in the process exposes crucial truths not only about this particular conflict, but also about war throughout history. Castner's memoir brings to mind Erich Maria Remarque's masterpiece, All Quiet on the Western Front.

The endless, agonizing recycling of what might have been, soon followed by a litany of rationalizations and self-deceptions as you struggle to reconcile the void between the person you want to be and the person you fear you are.

Above the comforts of Base Camp, the expedition in fact became an almost Calvinistic undertaking. The ratio of misery to pleasure was greater by an order of magnitude than any mountain I'd been on; I quickly came to understand that climbing Everest was primarily about enduring pain. And in subjecting ourselves to week after week of toil, tedium and suffering, it struck me that most of us were probably seeking above all else, something like a state of grace.

Getting to the top of any given mountain was considered much less important than how one got there: prestige was earned by tackling the most unforgiving routes with minimal equipment, in the boldest style imaginable.

Don't settle down and sit in one place. Move around, be nomadic, make each day a new horizon. You are still going to live a long timeand it would be a shame if you did not take the opportunity to revolutionize your life and move into an entirely new realm of experience.My point is that you do not need me or anyone elseThe only person you are fighting is yourself and your stubbornness

The only person you are fighting is yourself and your stubbornness to engage in new circumstances.

Straddling the top of the world, one foot in China and the other in Nepal, I cleared the ice from my oxygen mask, hunched a shoulder against the wind, and stared absently down at the vastness of Tibet.