text: Chapter 1
  reduce — 1. A tactical mission task in which a unit destroys an encircled or bypassed enemy force. (FM 3-90) 2.
  A mobility task to create and mark lanes through, over, or around an obstacle to allow the attacking force to
  accomplish its mission. (FM 1-02.1)
  reduction — (DOD) 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)
  redundancy — Using two or more like capabilities to collect against the same information requirement. (FM 3-
  90)
  refer — To measure, using the panoramic telescope, the deflection to a given aiming point without moving the
  tube of the weapon. (ATP 3-09.50)
  referred deflection — The deflection measured to an aiming point without moving the tube of the weapon. (ATP
  3-09.50)
  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)
  regional hub node — The gateway transport node for the Warfighter Information Network-Tactical, and the
  transport medium for theater-based network service centers. (ATP 6-02.60)
  regional mechanism — The primary method through which friendly forces affect indigenous populations, host
  nations, or the enemy to establish the conditions needed to safeguard our interests and those of our allies.
  (ADP 3-05)
  regional support group — A deployable headquarters that manages base camps or base clusters with a
  population of 6,000 or more personnel and requires services beyond basic life support. (ATP 3-90.20)
  registering piece — The howitzer designated by the fire direction center to conduct a registration fire mission.
  (ATP 3-09.50)
  rehearsal — A session in which the commander and staff or unit practices expected actions to improve
  performance during execution. (ADP 5-0)
  reinforcing — A support relationship requiring a force to support another supporting unit. (FM 3-0)
  reintegrate — (DOD) In personnel recovery, the task of providing medical care and psychological
  decompression to allow the conduct of appropriate debriefings to ultimately return recovered personnel back
  to duty and their family. (JP 3-50)
  reintegration — The process through which former combatants, belligerents, and displaced civilians receive
  amnesty, reenter civil society, gain sustainable employment, and become contributing members of the local
  populace. (ADP 3-07)
  relative advantage — A location or condition, in any domain, relative to an adversary or enemy that provides an
  opportunity to progress towards or achieve an objective. (FM 3-0)
  relay — A single transport mission completed in one trip and utilizes multiple vehicles without transferring the
  load. (ATP 4-11)
  release point — A designated place on a route where elements are released from centralized control. (FM 3-90)
  Also called RP.
  relevant information — All information of importance to the commander and staff in the exercise of command
  and control. (ADP 6-0)
  relief in place — (DOD) 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)
  render safe procedures — (DOD) The portion of the explosive ordnance disposal procedures involving the
  application of special explosive ordnance disposal methods and tools to provide for the interruption of
  functions or separation of essential components of unexploded explosive ordnance to prevent an
  unacceptable detonation. (JP 3-42)
  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)
  repatriation — (DOD) 2. The release and return of enemy prisoners of war to their own country in accordance
  with the 1949 Geneva Convention Relative to the Treatment of Prisoners of War. (JP 1-0)
  reprisal — Acts that are otherwise not permitted by law of armed conflict in order to persuade a party to the
  conflict to cease violating law of armed conflict. (FM 6-27)