text: Fundamentals of Operations
  Figure 3-2. The operational framework in the context of the strategic framework
  OPERATIONAL FRAMEWORK
  3-127. The operational framework is a cognitive tool used to assist commanders and staffs in clearly
  visualizing and describing the application of combat power in time, space, purpose, and resources in the
  concept of operations (ADP 1-01). Commanders build their operational framework on their assessment of
  the operational environment, including all domains and dimensions. They may create new models to fit the
  circumstances, but they generally apply a combination of common models according to doctrine. The three
  models commonly used to build an operational framework are—
  (cid:122) Assigned areas.
  (cid:122) Deep, close, and rear operations.
  (cid:122) Main effort, supporting effort, and reserve.
  Note. Commanders may use any operational framework models they find useful, but they must
  remain synchronized with their higher echelon headquarters’ operational framework.
  ASSIGNED AREAS
  3-128. The JFC assigns land forces an operational area within a joint organizational construct. The land
  component or ARFOR commander subdivides their AO into subordinate assigned areas to best support the
  desired scheme of maneuver. Commanders assign areas to subordinates based on a range of factors, including
  the mission, friendly forces available, enemy situation, and terrain. An assigned area that is too large for a
  unit to effectively control or exceeds a unit’s area of influence increases risk, allows sanctuaries for enemy
  forces, and limits joint flexibility. An assigned area that is too small constrains maneuver, limits opportunities
  for dispersion, and creates congested lines of communication. Most operations involve a combination of
  contiguous and noncontiguous assigned areas. Large areas with small forces typically conduct noncontiguous
  operations which place greater demands on C2 and sustainment. Commanders retain responsibility for any
  area not assigned to a subordinate unit. Within their assigned area, units use control measures to assign