text: Introduction
  The Army gives the combatant commander depth and versatility because landpower
  expands the friendly range of military options. The Army, uniquely, provides a combination
  of armored, medium, light, and airborne forces. Along with a full suite of enablers, this
  allows us to provide tailorable and scalable force packages for various contingencies. By
  multiplying the range of U.S. capabilities that the adversary must counter, the Army
  narrows options that might otherwise work against a lesser opponent or a coalition partner
  supported only by U.S. air and maritime power.
  ADP 1
  The unique and crucial role of the Army is to provide landpower to the geographic combatant commanders.
  Landpower, as ADP 1 notes, “is the ubiquitous tool of the joint force—often decisive, sometimes indirect,
  but indispensable.” FM 3-94 examines the employment of Army forces within a geographic combatant
  command and describes how the Army supports the geographic combatant commander across the range of
  military operations in that area of responsibility.
  In addition to being the largest of the Armed Forces of the United States, the Army has a greater variety of
  units than the other Services, each with a different organization and purpose. Therefore, the Army provides
  the combatant commander with an interlocking array of higher headquarters and formations trained and
  equipped to apply landpower from the theater level, through the operational level, and down to the tactical
  employment of various brigades, groups, and battalions. Together the theater army, field army (when
  constituted), corps, and divisions give the combatant commander multiple scalable options necessary for the
  employment of landpower in an interdependent joint force.
  FM 3-94 describes how armies, corps, and divisions conduct operations as unified action partners in
  competition and conflict using the Army’s operational concept—a fundamental statement that frames how
  Army forces, operating as part of the joint force, conduct operations (ADP 1-01). The Army’s operational
  concept in support of unified action is unified land operations.
  FM 3-94 discusses the foundations, tenets, and doctrine of army, corps, and division operations. It serves as
  a common reference for commanders and staffs at these echelons.
  FM 3-94 lists key higher echelon principles and tenets as a means of organizing ways commanders and staffs
  consider military problem solving at army, corps, and division echelons. Narrative discussions and historical
  vignettes provide explanations and context about commanding and controlling forces at these echelons. The
  proper application of principles and tenets to a particular situation requires situational understanding
  informed by professional judgment. FM 3-94 has five chapters and four appendices.
  Chapter 1 provides an overview of the higher echelons of the Army. It begins by describing the strategic
  environment in which Army forces operate. It describes the roles of these echelons within the context of a
  larger joint force. This chapter also discusses operational and administrative chains of command and their
  differences. The chapter concludes with a brief review of operational areas.
  Chapter 2 provides an overview of the operational art and science that underpins operations at the operational
  level of war. It discusses operational art and the design of campaigns at this level. It then describes
  operational-level combat power considerations.
  Chapter 3 provides an overview of theater and field armies. The chapter summarizes the subordinate units
  typically found in the theater army echelon. The chapter then discusses the internal organization of the theater
  army and the various command posts available to the theater army commander.
  Chapter 4 explains the roles and functions of the corps. The chapter then discusses the internal organization
  of the corps headquarters and the various command posts available to the corps commander. The chapter