text: Glossary
  *reconnaissance-pull
  Reconnaissance that determines which routes are suitable for maneuver, where the enemy is strong and
  weak, and where gaps exist, thus pulling the main body toward and along the path of least resistance.
  *reconnaissance-push
  Reconnaissance that refines the common operational picture, enabling the commander to finalize the
  plan and support main and supporting efforts.
  reconstitution
  An operation that commanders plan and implement to restore units to a desired level of combat
  effectiveness commensurate with mission requirements and available resources. (ATP 3-94.4)
  *reduce
  A tactical mission task in which a unit destroys an encircled or bypassed enemy force.
  reduce
  A mobility task to create and mark lanes through, over, or around an obstacle to allow the attacking
  force to accomplish its mission. (ATP 3-90.4/MCTP 3-34A)
  reduction
  The creation of lanes through a minefield or obstacle to allow passage of the attacking ground force.
  (JP 3-15)
  reduction area
  A number of adjacent points of breach that are under the control of the breaching commander.
  (ATP 3-90.4/MCTP 3-34A)
  *redundancy
  Using two or more like capabilities to collect against the same information requirement.
  regeneration
  The rebuilding of a unit through large-scale replacement of personnel, equipment, and supplies,
  including the reestablishment of essential command and control and the conduct of mission-essential
  training for the unit. (ATP 3-94.4)
  *release point
  A designated place on a route where elements are released from centralized control.
  relief in place
  An operation in which, by direction of higher authority, all or part of a unit is replaced in an area by
  the incoming unit and the responsibilities of the replaced elements for the mission and the assigned
  zone of operations are transferred to the incoming unit. (JP 3-07.3)
  reorganization
  All measures taken by the commander to maintain unit combat effectiveness or return it to a specified
  level of combat capability. (ATP 3-94.4)
  reserve
  (Army) That portion of a body of troops that is withheld from action at the beginning of an
  engagement to be available for a decisive movement. (ADP 3-90)
  reserved obstacle
  (Army) An obstacle of any type, for which the commander restricts execution authority. (ATP 3-90.8)
  restricted operations zone
  Airspace reserved for specific activities in which the operations of one or more airspace users is
  restricted. (JP 3-52)
  restrictive fire area
  A location in which specific restrictions are imposed and into which fires that exceed those restrictions
  will not be delivered without coordination with the establishing headquarters. (JP 3-09)