text: Reconnaissance and Security
  fires, harassment, surprise, and sabotage. At the same time, security forces conducting security operations
  provide information about the size, composition, location, and movement of enemy forces including
  information about the terrain and populations within a BCT’s area of operations. Effective security operations
  can also draw enemy forces into exposed positions,trade space for time,allow the BCT to concentrate forces
  elsewhere, deceive the enemy, attrite enemy forces, and hold, deny, or control key terrain. Security forces
  must be prepared to destroy enemy reconnaissance efforts and fight for information to seize,retain,or exploit
  the initiative. (SeeFM 3-90-2 for additional information.)
  FUNDAMENTALS OF SECURITY OPERATIONS
  5-71. Five fundamentals of security operations establish the framework for security operations. These
  fundamentals, discussed below, provide a set of principles that remind planners and practitioners of the
  inherent characteristics required to execute security operations. These fundamentals include provide early
  and accurate warning,provide reaction time and maneuver space,orient on the force or facility to be secured,
  perform continuous reconnaissance,and maintain enemy contact.
  PROVIDE EARLY AND ACCURATE WARNING
  5-72. The security force detects, observes, and reports threat forces that can influence the protected force.
  Early detection and warning through rapid reporting enables the BCT commander to make timely and
  well-informeddecisions to apply forces relative to the threat. As a minimum,security forces should operate
  far enough from the protected force to prevent enemy ground forces from observing or engaging the protected
  force with direct fires. The BCT commander and staff plan for the positioning of ground security, aerial
  scouts, and UASs to provide long-range observation of expected enemy avenues of approach. The
  commander reinforces and integrates them with available intelligence collection systems,such as unattended
  ground sensors,surveillance systems,and moving target indicators to maximize warning time.
  PROVIDE REACTION TIME AND MANEUVER SPACE
  5-73. Security forces provide the protected force with enough reaction time and maneuver space to
  effectively respond to likely enemy actions by operating at a distance from the protected force and by offering
  resistance (within its capabilities and mission constraints) to enemy forces. Providing the security force with
  an area of operations that has sufficient depth to operate enhances its ability to provide reaction time and
  maneuver space to the protected force. The commander determines the amount of time and space required to
  respond from the information provided by the IPB process and the protected force commander’s guidance
  regarding time the protected force requires to react to enemy COAs based on the mission variables of
  METT-TC. Reaction time and maneuver space relates to decision points driven by information requirements
  and indicators given the latest time information is of value parameters to ensure the commander makes
  decisions that place maximum firepower at the decisive point in a timely manner.
  ORIENT ON THE FORCE,AREA,ORFACILITY
  5-74. While reconnaissance forces orient on the enemy, security forces orient on the protected force by
  understanding their scheme of maneuver and follow-on mission. The security forcefocuses all its actions on
  protecting and providing early warning operating between the protected force and known or suspected enemy.
  The security force moves as the protected force moves and orients on its movement. The value of terrain
  occupied by the security force hinges on the protection it provides to the protected force. In addition to
  orienting on a force,security operations may orient on an area or facility.
  PERFORM CONTINUOUS RECONNAISSANCE
  5-75. Reconnaissance fundamentals are implicit in all security operations. Security forces continuously seek
  the enemy and reconnoiter key terrain. Security forces use continuous reconnaissance to gain and maintain
  enemy contact,develop the situation,report rapidly and accurately,retain freedom of maneuver to provide
  early and accurate warning,and provide reaction time and maneuver space to the protected force. Security
  forces conduct area reconnaissance or zone reconnaissance to detect enemy movement or enemy preparations
  for action and to learn as much as possible about the terrain with the ultimate goal to determine the enemy’s