Who wants a life of ease? And who wants a life in the office that you hate, and who wants to play golf?

I went to Afghanistan in '96 to write about terrorist training camps south of Jalalabad and Tora Bora, in the mountains. I was there right before the Taliban took over, literally a few weeks before they took Kabul. The frontline wasn't terribly active, but it was definitely there. And they swept into power.

Society can give its young men almost any job and they'll figure how to do it. They'll suffer for it and die for it and watch their friends die for it, but in the end, it will get done. That only means that society should be careful about what it asks for. ... Soldiers themselves are reluctant to evaluate the costs of war, but someone must. That evaluation, ongoing and unadulterated by politics, may be the one thing a country absolutely owes the soldiers who defend its borders.

Well, you got to remember, bin Laden killed 3,000 Americans and, in some ways, he and his ideology killed tens of thousands of his fellow Muslims, including Pakistanis. I understand that that was provocative and complicated for Pakistan, but only if you accept the idea that he was an acceptable member of Pakistani society.

Combat isn't where you might die -- though that does happen -- it's where you find out whether you get to keep on living. Don't underestimate the power of that revelation. Don't underestimate the things young men will wager in order to play that game one more time.

The Army might screw you and your girlfriend might dump you and the enemy might kill you, but the shared commitment to safeguard one another’s lives is unnegotiable and only deepens with time. The willingness to die for another person is a form of love that even religions fail to inspire, and the experience of it changes a person profoundly.

The army consists of the first infantry division and eight million replacements.