text: Chapter 13
  it is for casualties. Rehearsals at all levels within the security force are also paramount to prepare for potential
  casualties.
  POSITIONING OF SECURITY FORCE COMMAND POST AND COMBAT TRAINS
  13-38. Security force commanders move to where they can best control the operation. This is often where
  they can observe the most dangerous enemy avenue of approach. Security force units position their command
  post to provide continuous control and reporting during initial movements. They position the security force’s
  combat trains behind masking terrain, but the combat trains remain close enough to the combat elements of
  the security force to provide rapid response. Units position the combat trains along routes that provide good
  mobility laterally and in depth.
  REPORTING
  13-39. Security forces report enemy force activities to their main bodies. The main body headquarters is
  responsible for disseminating that information to other affected friendly forces. Main body units ensure their
  security forces are provided the current intelligence assessment and combat information obtained by their
  main bodies. This supplements their security forces’ information collection capabilities. By continuously
  exchanging information, security force units and main body units have time to choose suitable COAs. Digital
  systems greatly assist units in maintaining situational understanding to create a common operational picture.
  MOVEMENT CONSIDERATIONS FOR SECURITY MISSIONS
  13-40. Security forces use different movement techniques between stationary and moving security missions
  based on the operational and mission variables and the commander’s security guidance. These techniques are
  divided into those used during stationary missions and those used during moving missions.
  Movement into Security Areas for Stationary Security Missions
  13-41. When deploying into the security area, the security force addresses two competing requirements: to
  establish the security area quickly to meet mission requirements and to provide the necessary level of security
  for itself. The security force moves into the security area using one of three methods: tactical movement,
  movement to contact, or zone reconnaissance.
  13-42. The first technique of deploying is a tactical movement from the rear boundary of the security area
  to the initial positions. This method is the fastest but least secure. The security force moves to a release point
  on the rear boundary. From the release point, subordinate elements deploy to occupy initial positions, moving
  by the quickest means possible. This method is appropriate when the security force unit does not expect
  enemy contact, time is critical, or previous zone reconnaissance of the security area conducted by aviation
  units or aerial assets found no enemy in the security area.
  13-43. In the second technique, the security force conducts a movement to contact from a LD (usually the
  rear boundary of the security area) to the initial positions. This method is slower than a tactical road march
  but more secure. It is appropriate when enemy contact is likely, time is limited, the situation does not require
  detailed reconnaissance of the terrain, or aviation elements or other assets conducting zone reconnaissance
  forward of the ground element detect enemy forces in the security area.
  13-44. The third technique for moving to the initial position is for the security force to conduct a zone
  reconnaissance from the security area’s rear boundary to its initial security line positions or the forward limit
  of the security area. This is the most secure method. Given adequate time, this method is preferred because
  it allows the security force to clear the security area and become familiar with the terrain that it may have to
  defend. The security force reconnoiters potential subsequent positions and fire support system firing positions
  as it moves to its initial positions. A zone reconnaissance is appropriate when time is available and
  information about enemy forces or terrain is unknown. While this technique provides information of tactical
  value on the enemy forces and terrain in the area, it also consumes time. Using aerial reconnaissance forward
  of the ground units increases the speed and security of the movement.