text: Chapter 5
  tactical command post may control a BCT and supporting units in a covering force mission while
  the main command post controls defensive preparations in the main battle area.
  * Employing and deploying forces simultaneously with the main command post. In protracted
  operations, the main command post can control the deployment of forces into an AO while the
  tactical command post is in the AO controlling initial operations. These roles could be reversed
  over time, with the main command post controlling operations in the AO and the tactical command
  post managing the onward movement and integration of forces into the AO.
  * Augmenting the main command post. In protracted operations, the commander may combine the
  tactical command post and the main command post into a single co-located command post. This
  may be done to increase the capacity to control particularly complex tasks or as part of
  reorganization after losses during operations.
  * Serving as an ARFOR. When the division serves as both a JTF and an ARFOR, the division
  commander can designate the division tactical command post, with an assistant division
  commander, as the ARFOR headquarters. This role requires substantial augmentation to enable
  sustained 24-hour operations.
  5-32. The tactical command post is completely mobile and can move all its personnel and equipment with
  organic transportation. Factors that influence the movement of the tactical command post include the flow of
  operations, the threat of enemy action, and the desires of the commander. Based on the threat environment
  and the typical close location of the tactical command post to the close area, frequent displacements are
  typically required to enhance survivability and maintain tempo.
  DIVISION REAR COMMAND POST
  5-33. A rear command post enables the division commander by unifying the efforts of the various units, both
  under division control and not under division control, that operate in the division’s rear area, between the
  close area and the division rear boundary. When synchronized, these efforts enable the division to maintain
  tempo and operational reach. A rear command post performs seven functions, or possesses linkages to the
  main command post in order to command and control the division’s rear. Commanders may use the rear
  command post to provide command supervision and general officer oversight for—
  * Conducting division support area operations.
  * Performing terrain management and movement control.
  * Defeating threats.
  * Enabling sustainment operations.
  * Coordinating and synchronizing protection.
  * Enabling stability operations.
  * Enabling transitions.
  5-34. A rear command post may also control particularly complex sustaining operations such as reception,
  staging, and onward integration; or reorganization involving multiple subordinate brigades. The deputy
  commanding general for support usually controls operations from the rear command post. The G-4 section
  is generally responsible for the operation of the rear command post, with augmentation from the other staff
  sections as required. The division table of organization and equipment provides equipment for the rear
  command post, but personnel must come from either the main or tactical command posts. The rear command
  post is dependent on other units for security and life support. A properly resourced rear command post allows
  the main command post to focus on operations in the close and deep areas.
  MOBILE COMMAND GROUP
  5-35. A mobile command group allows a division commander to—
  * Provide personal leadership, intent, and guidance at the critical place and time.
  * Make a personal assessment of the situation.
  * Maintain situational understanding while moving around the area of operations.
  * Travel with key staff officers necessary to provide information relevant to the current operation.