This United States U.S. Army War College USAWC School of Strategic Landpower manual, How the Army Runs: A Senior Leader Reference Handbook 2021 - 2022, is the 33rd edition of this publication. It is the most current version. This text explains and synthesizes the functioning and relationships of numerous Defense, Joint, and Army organizations, systems, and processes involved in the development and sustainment of trained and ready forces for the Combatant Commanders.