A first of its kind, this book of, by, and for the noncommissioned officer and petty officer is a comprehensive explanation of the enlisted leader across the U.S. Armed Services. Written by a team of Active, Reserve, and retired senior enlisted leaders from all Service branches, this book defines and describes how NCOs/POs fit into an organization, centers them in the Profession of Arms, explains their dual roles of complementing the officer and enabling the force, and exposes their international engagement. Aspirational and fulfilling, this book helps prepare young men and women who strive to become NCOs/POs, re-inspires serving enlisted leaders, and stimulates reflection by those who have retired from or left active service. It also gives those who have never worn the uniform a better understanding of who these exceptional men and women are, and why they are properly known as the Backbone of the Armed Forces.