On Mission serves as a resource for personal leadership development, crafted by Sean Georges and John Buford, two former Marine Corps officers with a combined 80 years of leadership experience in military, business, nonprofit, education, and the wilderness. This book is for those who aspire to lead authentically across the spectrum of their lives by taking responsibility for and committing to their unique learning journey. Using a simple but powerful servant leadership model with a focus on mission, the authors share practical, fundamental, and timeless leadership concepts designed to help readers understand what it means to lead in an authentic way. The book is intended to be transformational and personal in nature, written to change the way aspiring leaders understand and approach to leadership. Beginning with the key question, “What is my best and highest role, in support of my teammates, in alignment with our mission?” the authors provide readers with the tools and perspective needed to navigate and shape their own unique developmental journey.