"DAMN THE VALLEY" was a phrase regularly uttered by the men that spent any amount of time in the Arghandab River Valley during the deployment of 2 Fury to Afghanistan in 2009-2010. The valley has claimed bodies from the troops of Alexander the Great, the British Empire, and more recently, the Russian Army. Operating in the valley was like nothing the men could have envisaged, they called it the "meat grinder." It was a deployment that the media didn't talk about, and the government doesn't acknowledge.

Of the 1.3 million active-duty service members in the US military, only a tiny fraction are selected as “operators.” Shannon Kent was one of the first women to serve at this level and was widely recognized as one of the best. Shannon served as a Navy cryptologic technician, responsible for signals intelligence and electronic warfare, but her proficiency with language set her apart. She was assigned to a unit so secretive that its name can’t even be printed here, where she worked clandestinely to hunt the most wanted terrorists in the world.

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.

Unlike the wars in Vietnam and Iraq, the US invasion of Afghanistan in 2001 had near-unanimous public support. At first, the goals were straightforward and clear: Defeat al-Qaeda and prevent a repeat of 9/11. Yet soon after the United States and its allies removed the Taliban from power, the mission veered off-course and US officials lost sight of their original objectives.

The attacks of September 11, 2001, prompted the creation of a robust and deadly special operations force—Task Force Dagger. Alan C. Mack, Callsign Razor 03, led a team of MH-47E helicopters and armed MH-60s. Their two-fold mission–Personnel Recovery (PR) and Unconventional Warfare (UW) involved flying in terrain and weather previously not thought possible. If that wasn’t enough, they pushed the flight envelope of their specially modified Chinooks to the limit and beyond.