FM 100-5: Operations, 1993, establishes the foundational warfighting doctrine for the United States Army. This manual serves as a guide for commanders, detailing how to conceptualize and execute campaigns, major operations, battles, engagements, and operations other than war. It addresses the fundamentals of a force-projection army with forward-deployed capabilities, applying to all components of the Total Army, including active and reserve forces and Army civilians. The publication provides the authoritative basis for subordinate doctrine, force design, materiel acquisition, professional education, and training.

As the keystone warfighting doctrine for the U.S. Army in 1993, FM 100-5 provided the authoritative framework for military operations and planning. Its comprehensive scope covered everything from large campaigns to smaller engagements, emphasizing force projection and adaptability. The manual served as the bedrock for subsequent doctrinal development, force structure, and training initiatives. While superseded by later publications, its historical significance lies in defining the Army's operational philosophy during a specific era.