The tenets of Pashtunwali are fluid, highly nuanced, and occasionally contradictory. According to the precept of melmastia, a Pashtun is obligated to show hospitality to all visitors, especially strangers. Guests are to be fed, sheltered, and protected from harm; if they request it, even mortal enemies must be given sanctuary.

According to the precept of badal, any injustice—no matter how slight—must be avenged. If a man suffers even the relatively minor insult of a personal taunt, for example, the insulted party must shed the taunter’s blood; if the taunter flees before justice can be carried out, the blood of his closest male relative must be shed in his stead. Endeavo

Fourteen years later, as he contemplated life from the perspective of an Army barracks, he regarded that catch as a pivotal moment—a confidence booster that contributed significantly to one of his defining traits: unwavering self-assurance.

“What I take from Pat Tillman is that you are not who you are at your worst moment. After what Pat did to Darin, it seems like he really turned his life around and became quite an honorable person.”

At their root, most aspects of Pashtunwali are about preserving honor and respect. And in Pashtun society, respect ultimately derives from demonstrations of strength and courage.

Up there on the heights, far above the gloom of the valley floor, the otherwise barren slopes were dotted with graceful Chilgoza pines still washed with sunlight, their silver bark and viridescent needles glowing in the fleeting rays.

The bomb had been assembled, delivered, and detonated by a Kuwaiti named Ramzi Yousef, under the supervision of his uncle Khalid Sheik Mohammed, who would later be identified as “the principal architect” of the attack against the same buildings on September 11, 2001.

This atomization of the nation—the hunkering of the population into a thousand premodern fiefs—proved to be ideal conditions for incubating a singularly virulent strain of terrorism that would shortly capture the attention of the world, and most especially the United States.

The hills immediately west of the Tillman abode are honeycombed with mine shafts that once yielded a bounty of mercury ore. It was the most valuable mine in California during the latter half of the nineteenth century, but the diggings were shut down in 1975, after which the site was designated a forty-two-hundred-acre recreational area and thirty-f