text: FM 7-100.1________________________________________________________________________________
  Areas of Responsibility
  2-68. OPFOR organizations are given a specific area of responsibility. An
  AOR is a clearly defined geographic area with associated airspace. An AOR is
  bounded by a limit of responsibility (LOR) beyond which the organization
  may not operate or fire without coordination through the next-higher head-
  quarters. AORs may be linear or nonlinear in nature (see Figures. 2-12 and
  2-13 for examples; see Chapters 3 and 4 for additional examples). Linear
  AORs may contain subordinate nonlinear AORs and vice versa.
  2-69. AORs normally consist of three basic zones: the battle zone, the
  disruption zone, and the support zone. An AOR may also contain one or
  more attack and/or kill zones. Zones may be linear or nonlinear in nature.
  These zones have the same basic purposes within each type of offensive and
  defensive operation (see Chapters 3 and 4). The size of these zones depends
  on the size of the OPFOR units involved, engagement ranges of weapon sys-
  tems, the terrain, and the nature of the enemy’s operation.
  2-70. An AOR is not required to have all of these zones in any particular
  situation. A particular command might have a battle zone and no disruption
  zone. It might not have a battle zone, if it is the disruption force of a higher
  command. If it is able to forage, it might not have a support zone. (See exam-
  ples in Figure 2-13.)
  OSC
  LOR
  Support Battle Disruption
  Zone Zone Zone
  OSC AREA OF RESPONSIBILITY
  OSC
  LOR
  Attack Zone
  OSC
  LOR Axis Objective
  Kill
  Zone
  Support Battle
  Line Line
  OSC
  LOR
  Figure 2-12. Linear AOR Example
  2-71. Within the overall LOR, the OPFOR normally refers to two types of
  control lines. The battle line separates the battle zone from the disruption
  zone. The support line separates the support zone from the battle zone. LORs
  give maximum latitude to the subordinate commander. Within the LOR, the