Book excerpt: This is Change 2 to ADRP 1-02. Change 2 incorporates numerous changes in doctrinal terminology. Army Doctrine Reference Publication (ADRP) 1-02 constitutes approved operational terminology and symbology for general use. It builds on the foundational doctrine established in Army Doctrine Publication (ADP) 1-02. The principal audience for ADRP 1-02 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 U.S., 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.) This publication implements the following international agreements: - STANAG 3680/AAP-06(2012), NATO Glossary of Terms and Definitions (English and French). - AAP-15(2012), NATO Glossary of Abbreviations Used in NATO Documents and Publications (English and French). - STANAG 2019 (Edition 6)/APP-6(C), NATO Joint Military Symbology. - STANAG 1241 (Edition 5), NATO Standard Identity Description Structure for Tactical Use. ADRP 1-02 uses joint terms where applicable. ADRP 1-02 applies to the Active Army, Army National Guard/Army National Guard of the United States, and United States Army Reserve unless otherwise stated. The proponent of ADRP 1-02 is the United States Army Combined Arms Center. The preparing agency is the Combined Arms Doctrine Directorate, United States Army Combined Arms Center.