In 1997, the 1986 edition was termed "the primary tool for the self-education and professional development required to achieve tactical competence.
"[1] In 1939 it was said to contain the principles of troop leading and combat of the combined arms in maneuver warfare and constitutes the basis of instruction of all arms and services for field service.
[2] FM100-5 was published on 1 October 1939 by newly-hired Chief of Staff General George C.
[5] DePuy supervised the Army's effort to learn lessons from the Yom Kippur War.
[6] The 1976 edition of FM100-5 was the inaugural publication of the United States Army Training and Doctrine Command.