text: Chapter 6
  6-46. Echelons maneuver subordinate formations to defeat enemy forces. Mission success demands that
  higher echelons provide support to subordinate operations. During large-scale combat operations, brigade
  combat teams (BCTs) and divisions generally focus on defeating enemy maneuver formations. Corps and
  higher echelons generally focus on defeating enemy integrated air defense systems and portions of the
  enemy’s integrated fires command according to the JFC plan and priorities.
  6-47. BCTs need the time and space to defeat lead enemy security operations and maneuver echelons.
  Divisions provide time and protection for subordinate formations by disintegrating the cohesion of follow-
  on forces, reserves, and short- and mid-range fires that threaten close and rear operations. Divisions maneuver
  brigades in close operations against enemy maneuver forces. Divisions employ attack aviation and close air
  support to enable their operations and employ rear operations to sustain tempo and operational reach.
  Focusing on enemy maneuver forces does not prevent BCTs and divisions from attacking components of the
  enemy’s integrated air defense or fires capabilities. Corps routinely require divisions to attack priority enemy
  capabilities that are in the division’s assigned area or area of influence.
  6-48. Corps maneuver divisions and set conditions by employing joint capabilities, including space and
  cyberspace effects, to defeat enemy mid- and long-range fires, air and missile defense capabilities, and their
  associated networks and sensors. Additionally, corps disrupt the movement of subsequent maneuver
  formations. Corps ensure division rear areas do not expand beyond their capacity to control, and they continue
  to expand division initial efforts to consolidate gains. The land component command provides mutual support
  to other components and maintains unity of effort on land with unified action partners. Land component
  command assessments ensure that tactical actions are having the desired effects in the physical, information,
  and human dimensions. They ensure that command narratives match the tactical situation, and that tactical
  actions reinforce command narratives. (See Figure 6-2 for a notional depiction of echelon roles and
  responsibilities in terms of time, space, and purpose.)
  6-49. Higher headquarters actively aid their subordinate formations in their fights, not merely attaching or
  assigning them with additional capabilities. Commanders and staffs actively avoid becoming so narrowly
  focused on their echelon’s roles and responsibilities that they allow their subordinate formations to fail.