text: Corps Roles, Functions, and Organizations
  4-98. Operations in the corps deep area involve efforts to prevent uncommitted enemy forces from being
  committed in a coherent manner. A corps deep area generally extends beyond division boundaries out to the
  limits of the corps designated AO. The purpose of operations in the corps’ deep area is often tied to setting
  conditions for future events in time and space. Operations in the corps’ deep area might disrupt the movement
  of operational reserves, prevent enemy forces from employing long-range fires, or neutralize a portion of
  enemy integrated air defenses. Planning for operations in the corps’ deep area includes considerations for
  information collection, airspace management, joint fires, obstacle emplacement, maneuver (both air and
  ground), special operations, and information and deception operations.
  4-99. Considerations when task-organizing the force include, but are not limited to, the mission, training,
  experience, unit capabilities, sustainability, the operational environment, and the enemy threat.
  Task-organizing the corps includes allocating assets to subordinate divisions and functional and
  multifunctional brigades, and establishing their command and support relationships. This occurs within
  tailored force packages as the corps organizes subordinate units for specific missions and employs doctrinal
  command and support relationships. As task-organizing continues, the corps reorganizes units for subsequent
  missions. The ability of a corps to task-organize gives it extraordinary agility by configuring its units to best
  use available resources. It also allows the corps to match unit capabilities to tasks. The ability of sustainment
  forces to tailor and task-organize ensures commanders have freedom of action to change with mission
  requirements.
  4-100. A corps integrates and synchronizes the operations of its divisions and brigades in depth so that their
  timing multiplies their effectiveness across multiple domains throughout the corps AO. The timing could be
  simultaneous or sequenced in a way to maneuver friendly forces or compel enemy forces to move. A corps
  must consider its entire AO, enemy forces, and information collection activities as it synchronizes combat
  power to conduct operations that fix, suppress, or surprise enemy forces. Such actions nullify an enemy
  force’s ability to react in a coherent fashion.
  4-101. A corps achieves mass by concentrating the effects of its combat power at the most advantageous
  places and times to produce decisive results. Massing is enabled by the other functions of the corps in
  large-scale combat operations. A corps shapes the deep area and maneuvers its task-organized subordinate
  formations into positions of advantage to enable the concentration of effects to achieve the most decisive
  results. A corps, as a senior tactical echelon, ensures these tactical results to support operational objectives.
  4-102. A corps sets priorities to achieve objectives. A corps uses management techniques to ensure it has
  the resources to shape the deep area and that its subordinate divisions and brigades have the necessary
  resources to win in their assigned missions. A corps can change the allocation of resources by condition or
  phase of an operation to switch between the priority of a main effort or shaping operations in the deep area.
  4-103. A corps leverages joint capabilities that will assist its other corps functions during large-scale combat
  operations. Joint capabilities enhance a corps’ ability to conduct shaping operations, provide additional
  combat power effects to concentrate, and provide additional logistic services to aid in resource distribution.