text: Planning for Short-Range Air Defense Operations
  units are subject to limitations specified in the attachment order. The attachment order should
  clearly state the administrative and support responsibility of the gaining unit to the attached unit.
  When a SHORAD unit is attached, the supported force provides administrative and logistical
  support to it.
  * Operational control is the authority to perform those functions of command over subordinate
  forces involving organizing and employing commands and forces, assigning tasks, designating
  objectives, and giving authoritative direction necessary to accomplish the mission (JP 1). A
  commander is provided another unit to accomplish specific missions or tasks that are usually
  limited by function, time, or location. When operational control is the appropriate command
  relationship, it should only be maintained for brief periods of time. Also, it should never be
  assigned when the parent unit has the capability to exercise effective control. Operational control
  does not of itself include administrative or logistical control. Control of administrative or logistical
  support must be specified in the order for operational control. Command relationships, positions,
  and priorities are established by the gaining ADA unit.
  * Tactical control is the authority over forces that is limited to the detailed direction and control of
  movements or maneuvers within the operational area necessary to accomplish missions or tasks
  assigned (JP 1). The gaining ADA unit establishes command relationships, positions, and
  priorities.
  SUPPORT RELATIONSHIPS
  The four support relationships are direct support, general support, reinforcing, and general support-
  reinforcing (see figure 4-1 on page 4-4). Support relationships alone may not be sufficient to ensure properly
  resourced and maintained units. Prior coordination between commanders and supported unit staffs is
  necessary to ensure subordinate units can operate independently of the parent unit when necessary.
  * Direct Support. A SHORAD unit with a direct support mission provides dedicated air defense for
  a specific element of the force which has none. The SHORAD unit provides close and continuous
  support and coordinates its movement and positioning with the supported unit.
  * General Support. A SHORAD unit with a general support mission provides air defense for the
  force as a whole. It is not committed to any specific element of the force. This relationship is
  commonly used to protect corps- and division-level assets.
  * Reinforcing. A SHORAD unit with a reinforcing mission augments the coverage of another ADA
  unit or strengthens the defense of the force. Reinforcing SHORAD units are positioned to protect
  one or more of the reinforced units' priorities as specified by supported ADA unit commanders.
  * General Support-Reinforcing. A SHORAD unit with a general support-reinforcing mission
  provides support for the force as a whole and augments the coverage of another ADA unit. The
  supporting units must coordinate with the augmented ADA units to reinforce the coverage of
  assets in the AO.