Field manual (FM) 1-0 provides the fundamentals, principles, and concepts of Army human resources (HR) support doctrine. It provides the doctrinal bases for developing operational plans (OPLANS) and standard operating procedures (SOPs) that support national objectives that reinforce the Army's vision that Soldiers and readiness are the principle focus of HR support. This publication applies to the range of military operations and supports Army doctrine publication (ADP) 3-0, Unified Land Operations and ADP 4-0, Sustainment. The principle audience for FM 1-0 is all members of the profession of arms. Commanders and staffs of Army headquarters serving as joint task force or multinational headquarters should also refer to applicable joint or multinational doctrine concerning the range of military operations and joint or multinational forces. Trainers and educators throughout the Army will also use this manual.