text: Chapter 3
  3-29. The MEB staff will synchronize security operations, conduct information collection, and develop the
  threat and common operational picture and share it with all units in the support area. The staff will coordinate
  the collective defense within the AO. The MEB commander may direct and employ transiting combat forces
  with the approval of higher headquarters. The support area TCF will defeat Level III threats or conduct battle
  handover to other combat forces.
  3-30. The MEB must integrate airspace user requirements with the theater airspace control system. A
  division may execute the joint air ground integration tactics techniques and procedures and request a volume
  of airspace to control all airspace users entering, exiting, and operating in their operational area. The MEB
  air defense airspace management cell coordinates with the airspace control element responsible for airspace
  control over their assigned AO.
  ASSESS
  3-31. The MEB staff must fuse the assessments from the commander, staff, subordinates, supporting units,
  and tenant units to monitor and evaluate the current situation and progress. The staff conducts base camp
  threat and vulnerability assessments. Key areas the staff assesses include security, base camp defense
  preparations, and area damage control preparations. The MEB commander and staff share their assessment
  with their higher headquarters commander and staff. Based on the assessments, they share responsibility to
  adjust tasks, resources, or risks. This is a dynamic process that will need to be redone as the conditions and
  risk change. The staff can use measures of effectiveness (MOEs) and measures of performance (MOPs) to
  help it develop security measures for the assigned support area and required detailed tasks.
  SUPPORT AREAS BY ECHELON
  3-32. Corps and division commanders establish a support area to facilitate the positioning, employment, and
  protection of sustainment assets required to sustain, enable, and support tactical operations. The echelon
  commander assigns the support area as an AO to a subordinate unit. The location and size of the support area
  varies according to METT-TC. The echelon support area commander establishes the support area into one or
  more base camps, and assigns security responsibilities to units located within the base camps. Possible tenants
  of the support area include (but are not limited to)—
  * Sustainment (see FM 4-0 for additional information on sustainment operations in a support area).
  * Field artillery operations (see FM 3-09 for additional information on field artillery operations).
  * Military police (see FM 3-39 for additional information on military police operations in a support
  area).
  * Engineers (see FM 3-34 for additional information on engineer operations in a support area).
  * CBRN assets (see FM 3-11 for additional information on CBRN operations in a support area).
  * Aviation (see FM 3-04 for additional information on aviation operations in a support area).
  * CA (see FM 3-57 for additional information on CA operations in a support area).
  * Nongovernmental organizations.
  * Host-nation entities.
  * Medical treatment facilities (see FM 4-02 for additional information on medical support to a
  support area).
  * Signal support to operations (see FM 6-02).
  CORPS
  3-33. The corps establishes a support area to concentrate sustainment, protection, available aviation, and
  support capabilities required to sustain, enable, and control tactical operations. The corps support area is
  based on geographical advantages for sustaining the force and protecting these assets. When the corps
  establishes a support area, it assigns it as an AO with responsibility to a subordinate unit such as a division,
  BCT, or MEB. However, in a corps contingency force operation, ill-defined or nonexistent boundaries and
  areas of operations can occur.