text: Chapter 3
  Figure 3-3. Notional corps area of operations with noncontiguous divisions
  Area of Influence and Area of Interest
  3-136. Operational environments are larger than the associated assigned area. They influence and are
  influenced by factors outside unit boundaries. To account for these factors commanders typically consider
  areas of influence and areas of interest relative through all domains and dimensions.
  3-137. An area of influence is an area inclusive of and extending beyond an operational area wherein a
  commander is capable of direct influence by maneuver, fire support, and information normally under the
  commander’s command or control (JP 3-0). The ranges of a unit’s maneuver and fires capabilities typically
  define its area of influence; however, commanders consider all forms of contact they can make with enemy
  forces when visualizing their area of influence. A unit’s area of influence contracts or expands based on the
  capabilities allocated by the higher headquarters and adjusts as the unit repositions its capabilities on the
  battlefield. An area of influence is normally larger than its associated assigned area, but it is smaller than its
  area of interest. Units typically have areas of influence that overlap with adjacent unit assigned areas. A unit
  might desire to collect information on or strike enemy forces traversing through an adjacent unit assigned
  area. This situation requires control measures to enable friendly forces to maintain pressure on enemy forces
  while mitigating the risk of fratricide. Understanding an area of influence helps commanders and staffs plan
  branches and sequels to the current operation in preparation for operations outside of the current assigned
  area.
  3-138. An area of interest is that area of concern to the commander, including the area of influence, areas
  adjacent to it, and extending into enemy territory (JP 3-0). This visualization tool enables commanders and
  staffs to understand the impact of threats outside their assigned area and how their operation is progressing
  along with their adjacent and higher units. An area of interest includes those aspects of the domains from
  which enemy forces can employ capabilities that jeopardize the accomplishment of the mission. The area of
  interest can shift according to the situation. For example, Army forces track the location of enemy AMD,