text: Intelligence at and Across Echelons
  7-80. The corps intelligence staff also supports corps campaign planning and future operations. The
  intelligence staff identifies changes in the situation that allow the commander to take advantage of windows
  of opportunity by making adjustments to the plan beyond current operations.
  SECTION VI – DIVISION
  7-81. The division is a formation that employs organic and assigned units for operations. As the tactical unit
  of action for a corps, a division’s primary role is as a tactical headquarters commanding multiple brigades.
  Divisions are the lowest tactical echelon that employ capabilities from multiple domains to achieve
  convergence during large-scale combat operations. Divisions are central to the conduct of large-scale combat
  operations as they are organized, trained, and equipped for the deep, rear, and support operations that enable
  success during close combat. A division combines offensive, defensive, and stability operations in an AO
  assigned by its higher headquarters, normally a corps. It task-organizes subordinate forces to accomplish the
  mission. During large-scale combat operations, a division operates not only as a headquarters but also as a
  centralized tactical force.
  7-82. During operations of limited scope and duration, the division can fulfill the ARFOR role. Under such
  conditions, the division may also form the nucleus for a small-scale JTF or JFLCC, although joint force
  augmentation is required to fulfill either role successfully. During operations to consolidate gains, the
  division primarily serves as an intermediate tactical command. When the situation is consolidated such that
  a field army or corps is no longer required to C2 operations, a division can assume the ARFOR or JFLCC
  role; either role also requires joint force augmentation.
  7-83. The division primarily focuses on operational responsibilities. Unless it serves as the ARFOR, a higher
  echelon normally retains ADCON for all but the division’s organic, assigned, and attached units. However,
  when warranted, a higher-echelon commander serving as the ARFOR may designate a division commander
  as the deputy ARFOR with prescribed responsibilities.
  7-84. A division may receive reinforcing capabilities and units from a corps, theater army, joint, or
  multinational echelon to conduct operations. In addition to BCTs, a division may directly control several
  types of multifunctional and functional brigades. The standard organization for a division formation includes
  a division artillery, a combat aviation brigade, a sustainment brigade, a maneuver enhancement brigade, and
  three to five BCTs.
  IEW Battalions (Division)
  In most instances, the corps allocates the IEW battalion (division) from the E MIB to a division.
  However, these are not enough IEW battalions for each division. IEW battalions (division) are
  assigned to E-MIBs and task-organized to priority divisions with command or support
  relationships as determined by corps commanders. IEW battalions (division) are collocated
  with their supported division headquarters and develop a habitual relationship with their
  supported division. The division commander may task-organize an IEW battalion (division),
  as necessary, for specific operations.
  7-85. The size, composition, and capabilities of the forces task-organized under a division may vary between
  divisions involved in the same campaign, and they may change from one operational phase to another.
  Operations during large-scale combat require a different mix of forces and capabilities from those required
  for the conduct of stability operations.
  7-86. Division and higher-level intelligence operations collect information to support current and future
  operations. Detailed intelligence analysis drives information collection for the division and its higher
  headquarters. To collect the information needed for planning and decision making, the division staff
  integrates all tools at its disposal into an integrated and synchronized echelon information collection plan.
  (See ATP 2-19.3.)