This field manual is intended for all aviation commanders, staffs, and any U.S. military personnel expecting to conduct operations with Army aviation units. The operational concepts described in this manual reinforce fundamental principles found in Army doctrine. It provides overarching doctrinal guidance for employing aviation brigades in full spectrum operations and a foundation for developing tactics, techniques, and procedures (TTP) in other/follow-on Army manuals. It expands employment doctrine for aviation units and describes considerations for forming aviation battalion task forces (ABTFs).