This United States Army field manual, Army Doctrine Publication ADP 3-37 Protection January 2024, expands on doctrine for protection described in the Army capstone manual ADP 3-0. It describes how Army forces at every echelon employ protection. The primary focus of ADP 3-37 is on how commanders and staffs integrate, synchronize, and employ protection capabilities and proactive measures to prevent or mitigate detection, threat effects, and hazards. Effective protection preserves combat power and enables freedom of action. ADP 3-37 is applicable to all members of the profession of arms: leaders, Soldiers, and Army civilians. The principal audience for ADP 3-37 is commanders and staffs within theater armies, corps, divisions, and brigades. This publication provides the foundation for training, curricula, and future capabilities development across doctrine, organization, training, materiel, leadership and education, personnel, facilities, and policy.