text: Corps Roles, Functions, and Organizations
  4-30. The tactical command post includes representatives from all five functional cells, including the G-6,
  the chief of staff, civil affairs operations, the public affairs officer, the chaplain, the knowledge management
  section, the cyberspace and electromagnetic activities section, the office of the staff judge advocate, and
  various liaison officers. It also has an engagement element that contains civil affairs, security cooperation,
  and military information support operations staff officers.
  4-31. The tactical command post is mobile, and it is easily deployed or displaced since most of its
  transportation is organic. The tactical command post can control corps operations for a limited time and form
  the nucleus of a forward-deployed early-entry command post (sometimes designated as an assault command
  post). It is deployed as an extension of the main command post to perform specific tactical tasks. It is capable
  of 24-hour operations for limited periods, and it is scalable in size and composition to reflect operational and
  mission variables and manpower caps within the corps’ AO. The endurance of the tactical command post is
  a function of the intensity of the workload and capacity of its staff.
  4-32. Displacing the tactical command post requires transportation assets, initially with inter-theater airlift,
  and subsequently with intra-theater assets. The tactical command post should be strategically deployable by
  a minimum number of C-17 aircraft. Once in theater, the tactical command post should need minimal
  reception, staging, onward movement, and integration (known as RSOI) before becoming functional. By
  adjusting the vehicle and equipment mix, the tactical command post may reconfigure for movement by C-130
  aircraft to forward locations if ground movement is not feasible or timely.
  REAR COMMAND POST
  4-33. Depending on the situation, including the threat, size of the rear area, and number of units in the support
  area, corps commanders may form a rear command post to assist in controlling operations. The rear command
  post enables corps commanders to exercise command and control over disparate combat, functional, and
  multifunctional elements operating between the close area and the corps rear boundary that may exceed the
  effective span of control of the MEB or corps main command post. This is especially true in the case of large-
  scale combat when the number of units operating behind the close area is large. Commanders may use the
  rear command post to provide command supervision and general officer oversight for—
  * Conducting corps support area operations.
  * Performing terrain management and movement control.
  * Defeating threats.
  * Enabling sustainment operations.
  * Coordinating and synchronizing protection.
  * Enabling stability operations.
  * Enabling transitions.
  4-34. Deployed as an extension of the main command post, the rear command post is focused on supporting
  operations in the deep and close areas, and it coordinates activities between those areas and the corps rear
  boundary. It assists the main command post and the commander in coordinating the activities of the multiple
  units operating there by managing terrain and controlling movement. The management of terrain and
  movement control responsibilities are intensive, requiring significant effort to be successful. Normally, a
  deputy corps commander leads the rear command post. The specific functions assigned to the rear command
  post will be designated by the corps commander to their deputy commander through an order or terms of
  reference.
  4-35. The corps table of organization and equipment provides equipment for the rear command post, but
  personnel must come from either the main command post or the tactical command post. The rear command
  post may be augmented by other units in the corps support area as required. The MEB, which is required
  anytime a corps deploys, is the primary unit that augments the rear command post. When a MEB is not
  available, or additional specialties are required, the corps rear command post may use personnel from other
  units. The rear command post depends upon a MEB, or other brigade-sized headquarters, for security, life
  support, and area control functions. When integrated with a MEB, the rear command post is capable of
  coordinating and synchronizing the corps rear operations allowing the main command post to focus on close
  and deep operations.