text: Command and Support Relationships
  Table B-3. Army support relationships
  Then the inherent responsibilities are:
  Authorities
  a CDR can
  Are
  Have impose on
  If relation- command May be Receives assigned Provide Establish/ Have gaining
  ship is— relation- task- sustain- position or liaison maintain priorities unit further
  organiz- ment an area of communica- establish
  ship to— command
  ed by— from— operations tions with— ed by—
  with— or support
  by—
  relation-
  ship by—
  Parent HQ;
  Direct Parent Parent Supported Supported Supported
  Parent HQ supported See note.
  support HQ HQ HQ HQ HQ
  HQ
  Parent HQ; Reinforced
  Parent Parent Reinforced Reinforced Not
  Reinforcing Parent HQ reinforced HQ; then
  HQ HQ HQ HQ applicable
  HQ parent HQ
  Reinforced Reinforced Parent
  General
  Parent Parent HQ and as HQ and as HQ; then Not
  support– Parent HQ Parent HQ
  HQ HQ required by required by reinforced applicable
  reinforcing
  parent HQ parent HQ HQ
  As As required
  General Parent Parent Not
  Parent HQ Parent HQ required by by parent Parent HQ
  support HQ HQ applicable
  parent HQ HQ
  Note. Commanders of units in direct support may further assign support relationships between their subordinate units and
  elements of the supported unit after coordination with the supported commander.
  CDR commander HQ headquarters
  B-25. For the Army, direct support is a support relationship requiring a force to support another specific
  force and authorizing it to answer directly to the supported force’s request for assistance. A unit
  assigned a direct support relationship retains its command relationship with its parent unit, but it is positioned
  by and has priorities of support established by the supported unit. (Joint doctrine considers direct support a
  mission rather than a support relationship.) A field artillery unit in direct support of a maneuver unit is
  concerned primarily with the fire support needs of only that unit. The commander of a unit in direct support
  recommends position areas and coordinates for movement clearances where the unit can best support the
  maneuver commander’s concept of the operation.
  B-26. General support is that support given to the supported force as a whole and not to any particular
  subdivision thereof. Units assigned a general support relationship are positioned and have priorities
  established by their parent unit. A field artillery unit assigned in general support of a force has all of its fires
  under the immediate control of the supported commander or his designated force field artillery headquarters.
  B-27. Reinforcing is a support relationship requiring a force to support another supporting unit. Only
  like units (for example, artillery to artillery) can be given a reinforcing mission. A unit assigned a reinforcing
  support relationship retains its command relationship with its parent unit, but it is positioned by the reinforced
  unit. A unit that is reinforcing has priorities of support established by the reinforced unit, then the parent unit.
  For example, when a direct support field artillery battalion requires more fires to meet maneuver force
  requirements, another field artillery battalion may be directed to reinforce the direct support battalion.
  B-28. General support—reinforcing is a support relationship assigned to a unit to support the force as
  a whole and to reinforce another similar type unit. A unit assigned a general support—reinforcing support
  relationship is positioned and has its priorities established by its parent unit and secondly by the reinforced
  unit. For example, an artillery unit that has a general support—reinforcing relationship supports the force as
  a whole and provides reinforcing fires for other artillery units.