The author describes how, after working as a humanitarian around the world, he realized that he could do nothing to stop violence or prevent people from becoming refugees and soon joined the elite Navy SEALs, where he drew on his humanitarian training ashe battled injustice.

For David Goggins, childhood was a nightmare--poverty, prejudice, and physical abuse colored his days and haunted his nights. But through self-discipline, mental toughness, and hard work, Goggins transformed himself from a depressed, overweight young man with no future into a U.S. Armed Forces icon and one of the world's top endurance athletes. The only man in history to complete elite training as a Navy SEAL, Army Ranger, and Air Force Tactical Air...