Field Manual (FM) 1-100 is Army aviation's capstone manual. It embodies the doctrinal tenets for the employment of aviation and establishes the basis for understanding aviation as an essential element of combat power. Doctrinally describing Army aviation, the manual serves as the foundation that captures the essence of Army aviation and those principles upon which it is employed. It prescribes doctrine above the level of tactics, techniques, and procedures. This field manual provides general guidance concerning the employment of Army aviation on the modern battlefield. It forms the basis for understanding Army aviation's unique contribution to maneuver, combat support, and combat service support missions. It establishes the principles of Army aviation employment for warfighting and other operations, and applies to all echelons of aviation operations.