text: Chapter 2
  Figure 2-2. Army Health System command and support relationships
  THEATER ARMY
  2-12. The theater army is the senior Army headquarters in an AOR, and it consists of the commander, staff,
  and all Army forces assigned to a combatant command. Each theater army has operational and administrative
  responsibilities. Its operational responsibilities include command of forces, direction of operations, and
  control of assigned AOs. Its administrative responsibilities encompass the Service-specific requirements for
  equipping, sustaining, training, unit readiness, discipline, and personnel matters. As required, the theater
  army provides Army support to other services and common user logistics.
  2-13. The theater army always maintains an AOR-wide focus, providing support to Army and joint forces
  across the AOR, in accordance with the geographic combatant commander (GCC)'s priorities of support. For
  example, the theater army continues shape and prevent activities in various operational areas at the same time
  it is LSCO.
  2-14. The theater army serves as the Army Service component command (ASCC) of the geographic
  combatant command. It is organized, manned, and equipped to perform that role. The ASCC is the command
  responsible for recommendations to the joint force commander (JFC) on the allocation and employment of
  Army forces within a CCDR’s AOR. For additional information refer to FM 3-94.
  2-15. According to ATP 3-93 (Theater Army Operations), theater armies are assigned or provided access to
  five enabling capabilities (sustainment, signal, medical, military intelligence, and civil affairs), and an
  assortment of functional and multifunctional units, based on specific requirements for the area of
  responsibility.
  2-16. The MEDCOM (DS) is assigned to the ASCC. As one of the theater enabling commands, the
  MEDCOM (DS) is the theater medical command responsible for integration, synchronization, and command
  and control for the execution of all AHS support operations within the AOR. The MEDCOM (DS) may have
  a direct support or general support relationship with the corps or the division. The MEDCOM (DS) has a
  command relationship with the ASCC and a general support relationship with the theater sustainment
  command (TSC) or expeditionary sustainment command (ESC). A high level of coordination between
  command and staff channels develops the situational understanding necessary to recommend priorities and
  courses of action to echelon commanders. The medical staff channels (surgeon cells) conduct planning,