In the predawn hours of March 4, 2002, just below the 10,000-foot peak of a mountain in eastern Afghanistan, a fierce battle raged. Outnumbered by Al Qaeda fighters, Air Force Combat Controller John Chapman and a handful of SEALs struggled to take the summit in a desperate bid to find a lost teammate. Chapman, leading the charge, was gravely wounded in the initial assault. Believing he was dead, his SEAL leader ordered a retreat. Chapman regained consciousness, alone with the enemy closing in on three sides, beginning the most difficult and exceptional fight of his life.

Like the men whose epic stories Jon Krakauer has told in his previous bestsellers, Pat Tillman was an irrepressible individualist and iconoclast. In May 2002, Tillman walked away from his $3.6 million NFL contract to enlist in the United States Army. He was deeply troubled by 9/11, and he felt a strong moral obligation to join the fight against al-Qaeda and the Taliban. Two years later, he died on a desolate hillside in southeastern Afghanistan.

This is a book about common sense—what it is, how to make it, and how to put it into practice across all contexts of leadership and life. It's also a book of stories from my leadership journey across continents, cultures, and contexts (e.g., combat, business, and government). In this book, you’ll learn what I learned and what many other common-sense leaders across the ages have learned before us.

From 1999 to 2009, U.S. Navy SEAL Chris Kyle recorded the most career sniper kills in United States military history. The Pentagon has officially confirmed more than 150 of Kyles kills (the previous American record was 109), but it has declined to verify the astonishing total number for this book. Iraqi insurgents feared Kyle so much they named him al-Shaitan ("the devil") and placed a bounty on his head.

Pat Tillman was seen by many as an American hero. A star college football player turned pro, he walked away from a multimillion-dollar NFL contract after the 9/11 attacks, choosing to enlist in the U.S. Army. He graduated from their elite Ranger school and was deployed to Iraq in 2003. On April 22, 2004, Pat Tillman was killed in Afghanistan.