text: Sustainment Operations During Armed Conflict
  routes) for the use of both air and ground medical evacuation and casualty evacuation platforms in addition
  to lifts of opportunity. For additional information on mass casualty operations, see ATP 4-02.4, ATP 4-02.6,
  and ATP 4-02.13.
  5-160. Fatality management plans must strive to support the defense in depth. Because of the fixed nature of
  fatality operations and evacuation routes, these operations and routes are more vulnerable to enemy action.
  Fatality management plans must identify both primary and secondary LOCs for evacuating the human
  remains of friendly, enemy, and local nationals. Planners must be aware of this and ensure that policies and
  procedures are established for the prompt, dignified return of these human remains to local government
  officials, Red Cross, Red Crescent, or family members. For additional information, see JP 4-0, ADP 4-0, and
  ATP 4-46.
  5-161. Sustainment planners and maneuver commanders in the defense should be prepared to execute
  reconstitution operations to rebuild combat power. Commanders assess unit readiness and determine the most
  expedient method to bring the unit to an acceptable combat posture through reorganization or regeneration.
  5-162. To support defensive operations, sustainment forces at all echelons consider echeloning support assets
  to expedite replenishment for critical support. Sustainment forces have limited protection capabilities and
  may be required to execute security tasks until the arrival of dedicated maneuver security elements.
  ECHELONS ABOVE BRIGADE SUSTAINMENT
  5-163. The companies operating at EAB
  provide all sustainment support to defense Sustainment Functional Battalions
  enabling units operating in the division support • Motor transport battalion
  or rear areas. These companies also provide
  • Petroleum support battalion
  area support for units transiting these areas and
  • Movement control battalion
  provide sustainment support to the maneuver
  brigades. These units will normally be attached
  to a DSSB, CSSB, DSB, or a sustainment brigade. Functional companies may be attached to a functional
  battalion when available. Examples of functional battalions include the motor transport battalion, petroleum
  support battalion, and movement control battalion. Support is executed based on priorities and support
  relationships established in the order issued by the DSSB, CSSB, DSB, or sustainment brigade in support of
  the overall theater distribution effort.
  5-164. During the defense, commanders address several unique sustainment requirements. Commanders
  determine which supplies are needed, how often to supply, and which method of supply best supports
  defensive operations. Priorities for replenishment are normally bulk water, ammunition, and materials to
  construct obstacles for defensive positions. There is normally a reduced need for bulk fuel. There may also
  be an increased demand for decontaminants and CBRN collective and personal equipment.
  5-165. Distribution is a critical aspect of sustaining defensive operations to ensure adequate resupply at all
  times. EAB sustainment units work within the distribution network to execute operations through the
  integration and synchronization of materiel management and transportation. Distribution builds and
  maintains combat power with the delivery of supplies, personnel, and equipment as replenishment support to
  a BSB and extends operational reach of maneuver forces, enables freedom of action, and prolongs endurance.
  5-166. A composite or quartermaster supply company resupplies BSBs and EAB units conducting or
  supporting defensive operations. Resupplies include general supply, fuel, water, and retrograde support.
  Supply stocks are replenished by other supply companies executing supply support within the theater. The
  replenishment is delivered to the supply company via EAB transportation companies executing theater
  distribution, which supports the overall theater distribution plan.
  5-167. Troop movements and resupply convoys with combat-configured loads are delivered to maneuver
  units on a scheduled basis during the defense. The composite or functional transportation companies provide
  heavy, medium, light, bulk water, and bulk petroleum transportation capability through various types of units.
  The transportation company role is to provide transportation support and execute convoys to move supplies,
  equipment, and personnel replacements in support of defensive operations.