text: The Brigade Combat Team and the Operational Environment
  enemy weaknesses by applying the required type and degree of force at the most advantageous times and
  places.
  2-158. The existence of a forcible entry capability induces the enemy to disperse forces, and in turn may
  result in making wasteful efforts to defend everything. The typical sequence in this type operation is to gain,
  secure,and expand a lodgment as part of a larger force before continuing operations. As an assault force,the
  BCT deploys by various means (parachute assault [airborne Infantry BCT only], air landing force,
  helicopter-borne air assault,and amphibious assault) into the objective area to seize initial assault objectives,
  neutralize enemy units, prepare obstacles, and secure additional landing zones. The intent is to introduce
  additional forces as quickly as possible to secure the initial lodgment area. (See FM 3-99 and JP 3-18 for
  additional information.)
  Sustainment
  2-159. Sustainment is the provision of logistics, financial management, personnel services, and health
  services support necessary to maintain operations until successful mission accomplishment. Sustainment of
  force projection operations is a complex process involving the geographic combatant commander,strategic
  and joint partners such as U.S. Transportation Command,and transportationcomponent commands like Air
  Mobility Command, Military Sealift Command, Surface Deployment and Distribution Command, United
  States Army Material Command, Defense Logistics Agency, Service Component Commands, and Army
  generating forces. The Joint Network Node system connects the BCT to support area high headquarters,other
  sustainment Army forces and joint task forces during the force projection process. Sustainment of force gives
  Army forces its operational reach, freedom of action and endurance. (See ADP 4-0 for additional
  information.)
  Redeployment
  2-160. Redeployment is the transfer of forces and/or materiel to home or demobilization stations for
  reintegration and/or out-processing (ATP 3-35). This process for the BCT includes two major functions:
  deployment back to home station or to another theater and consolidation and reorganization as part of higher
  echelon reconstitution.
  2-161. Redeployment is the preparation for and movement of the BCT from a theater to its designated
  follow-on continental United States or outside the continental United States base or to any other location.
  Commanders must contend with the same challenges as in deployment. Protection remains critical.
  Redeployment activities must be planned and executed to optimize the readiness of redeploying forces and
  material to meet new contingencies or crises. Redeployment phases include reconstitution for strategic
  movement,movement to the redeployment assembly areas,movement to the POE,strategic lift,reception at
  the POD,and onward movement.
  2-162. Reconstitutionis actions that commanders plan and implement to restore units to a desired level of
  combat effectiveness commensurate with mission requirements and available resources (ATP 3-21.20).
  Reconstitution activities include rebuilding unit integrity and accounting for Soldiers and equipment. These
  activities continue after the force arrives in the continental United Statesor in the home theater. The focus is
  on reconstituting units and their assigned equipment to premobilization levels of readiness, regenerating
  logistic stockpiles,and accounting for mobilized equipment and supplies.
  Note.In large-scale ground combat operations,reconstitution will be a task conducted in theater
  by units in order to maintain lethality,freedom of action,operational reach and prolong endurance.