Army Doctrine Reference Publication (ADRP) 3-0 augments the unified land operations doctrine established in Army Doctrine Publication (ADP) 3-0, Unified Land Operations. This manual expands the discussion on the overarching guidance on unified land operations and the Army's core competencies of combined arms maneuver and wide area security. It accounts for the uncertain and ever-changing nature of operations and recognizes that military operations are foremost a human undertaking. It constitutes the Army's view of how to conduct prompt and sustained operations on land and sets the foundation for developing the other principles, tactics, techniques, and procedures detailed in subordinate doctrine publications. Combined with ADP 3-0, the doctrine in ADRP 3-0 provides the foundation for the Army's operational concept of unified land operations. This manual forms the foundation for training and Army education system curricula on unified land operations. The principal audience for ADRP 3-0 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. Commanders, staffs, and subordinates ensure their decisions and actions comply with applicable United States, international, and, in some cases, host-nation laws and regulations. Commanders at all levels ensure their Soldiers operate in accordance with the law of war and the rules of engagement. (See Field Manual FM] 27-10.) ADRP 3-0 uses joint terms where applicable. Selected joint and Army terms and definitions appear in both the glossary and the text. Terms for which ADRP 3-0 is the proponent publication (the authority) are marked with an asterisk (*) in the glossary. Definitions for which ADRP 3-0 is the proponent publication are boldfaced in the text. These terms and their definitions will be in the next revision of FM 1-02. For other definitions shown in the text, the term is italicized and the number of the proponent publication follows the definition. ADRP 3-0 applies to the Active Army, Army National Guard (ARNG)/Army National Guard of the United States (ARNGUS), and United States Army Reserve (USAR) unless otherwise stated.