text: Chapter 1
  Unassisted Recovery
  1-36. Successful units train and equip all individuals to self-recover in the event recovery forces cannot
  execute other recovery methods due to weather, threat, or operational necessity. Isolated personnel may
  have the most complete knowledge of their situation and use individual Soldier skills to evade enemy
  forces, awaiting the right time to return to friendly control. An unassisted recovery depends on the
  condition of the Soldiers and the situation at the location where they are isolated. A wounded, injured,
  exhausted, or disoriented Soldier, one endangered by enemy forces, or one without the proper equipment,
  may be unable to self-recover. If possible, isolated individuals communicate if they cannot conduct
  unassisted recovery to alert the responsible command to begin planning for an immediate, deliberate, or
  external supported recovery.
  Immediate Recovery
  1-37. An isolated person’s unit is often in the best position to receive the report, locate the person, and
  execute recovery. Unit leadership—knowing the mission and Soldier’s tasks—has the best idea of the
  Soldier’s whereabouts. Immediate recovery aims to locate isolated persons, keep them under direct
  observation, and recover them before the enemy understands the situation. Immediate recovery assumes
  that the tactical situation permits a recovery with the forces at hand, and those forces have a clear enough
  understanding of the situation to accomplish the mission. It also assumes that successful recovery occurs
  without excessive casualties to the recovery force, without unduly imperiling the isolated person, and
  without endangering the unit’s overall mission.
  Deliberate Recovery
  1-38. Deliberate personnel recovery is appropriate when an immediate recovery was unsuccessful or not
  attempted due to the threat, asset availability, current operations, or isolated personnel situation. Such a
  situation can arise when the enemy has a preponderance of combat power or when environmental
  conditions such as weather, contamination, or flooding prevent immediate recovery operations.
  Commanders conduct deliberate personnel recovery like any other deliberate operation, using the military
  decisionmaking process and appropriate preparation. The operation can be a mission specifically to recover
  an isolated person or a specified or implied task in another mission.
  External Supported Recovery
  1-39. When a recovery mission exceeds the capabilities of Army forces, they may request external support
  from Service, joint, or multinational forces. When Army forces assist outside entities in personnel recovery,
  it is external support. In addition to direct military support, host-nation (HN) security forces (military,
  paramilitary, and national police) and multinational forces often support recovery operations. This external
  support can include direct participation or indirect support in the recovery mission. Examples of indirect
  support are intelligence; air, ground, and water transport; reconnaissance and surveillance; medical
  evacuation and medical treatment facilities; fires; protection; and communications. At echelons above
  brigade, the command’s PRCS coordinates external support with its appropriate counterparts. To facilitate
  the external support entity’s activities, Army headquarters and forces provide necessary information, which
  may include information entered on DD Form 1833 (Isolated Personnel Report [ISOPREP]) and ISG. (See
  chapter 5 of JP 3-50 for more information about ISOPREP data for authentication.) The command and
  support relationships for external support are normally coordinated and agreed upon during mission
  planning. Some external support capabilities may be under the operational control of senior echelon Army
  headquarters. The command relationship may also be tactical control in which the recovery force gets the
  benefit of the support, but the unit remains under the command of its organization.
  Diplomatic Option
  1-40. The DOS has the lead for personnel recovery for military forces not directly under the command of a
  geographic combatant commander. Following the DOS lead, U.S. forces provide support. The DOS and
  other USG agencies associated with the mission often have the resources and HN contacts to support
  recovery operations. This is especially true when diplomatic options require knowledge of HN laws and