text: FM 7-100.1________________________________________________________________________________
  the FG and theater levels. This CP is mobile, but at the operational level may
  consist of a large number of command vehicles.
  2-190. The personnel at the forward CP are not permanent. The assignment
  of officers to accompany the commander is dependent on the mission, situa-
  tion, availability of officers, communications, and transport means. Officers
  who may accompany the commander include the operations officer and the
  chief of reconnaissance. Other primary and or secondary staff officers may
  also deploy with the forward CP, depending on the needs of the situation.
  The secondary staff contains enough personnel to man the forward CP with-
  out degrading its ability to man the main or IFC CPs.
  2-191. When formed, and when the commander is present, the forward CP is
  the main focus of command, though the chief of staff (remaining in the main
  CP) has the authority to issue directives in the commander’s absence.
  Sustainment Command Post
  2-192. The resources officer establishes and controls the sustainment CP.
  This CP is deployed in a position to permit the supervision of execution of
  sustainment procedures and the movement of support troops, typically in the
  support zone. It contains staff officers for fuel supply, medical support, com-
  bat equipment repair, ammunition supply, clothing supply, food supply, pris-
  oner-of-war, and other services. It interacts closely with the subordinate
  units to ensure sustained combat capabilities. In nonlinear operations, mul-
  tiple sustainment CPs may be formed.
  Airborne Command Post
  2-193. To maintain control in very fluid situations, when subordinates are
  operating over a wide area, or when the other CPs are moving, a commander
  may use an airborne CP. This is very common in higher-level commands and
  typically employs fixed-wing aircraft above OSC level.
  Alternate Command Post
  2-194. The alternate CP provides for the assumption of command should the
  CP containing the commander be incapacitated. The alternate CP is a desig-
  nation given to an existing CP and is not a separately established entity. The
  commander establishes which CP will act as an alternate CP to take com-
  mand if the main (or forward) CP is destroyed or disabled. For example, the
  commander might designate the IFC CP as the alternate CP during an op-
  eration where long-range fires are critical to mission success. For situations
  that require reconstituting, he might designate the sustainment CP instead.
  Alternate CPs are also formed when operating in complex terrain, or if the
  organization is dispersed over a wider area than usual and lateral communi-
  cation is difficult.
  Auxiliary Command Post
  2-195. At OSC and FG levels, the operational commander may create an aux-
  iliary CP to provide C2 over subordinate units operating on isolated or remote
  axes. He may also use it in the event of disrupted control or when he cannot
  adequately maintain control from the main CP. An officer appointed at the