text: Chapter 2
  capabilities of the supported ARSOF unit. The JFC may assign a command relationship between the
  conventional supporting force and the ARSOF supported unit, or the JFC may determine a support
  relationship (general support or direct support) is more appropriate. For additional information on special
  operations sustainment, see ATP 3-05.40.
  SECTION III – OVERVIEW OF THEATER STRATEGIC LEVEL OF WARFARE
  2-41. The theater strategic level of warfare is the level of warfare at which combatant commanders
  synchronize with unified action partners and employ all elements of national power to fulfill policy aims
  within the assigned theater in support of the national strategy (FM 3-0). Based on strategic guidance, CCDRs
  with assigned AORs and staffs update their strategic estimates and develop theater strategies with input from
  subordinate commands, including theater Armies and supporting commands and agencies. The theater
  strategy serves as the basis for development of the CCMD campaign plan.
  2-42. Army echelons and sustainment units operate across the strategic, operational, and tactical levels; many
  are affiliated with either supported or supporting commands and operate under a variety of command
  relationships. Knowing the roles, responsibilities, and authorities of unified action partners is essential to
  planning, preparing, executing, and assessing sustainment operations.
  THEATER ARMY
  2-43. The theater Army is the senior Army headquarters in an AOR and consists of the commander, staff,
  and all Army forces assigned to a CCMD. Each theater Army (United States Army Central, United States
  Army Europe and Africa, United States Army North, United States Army Pacific, and United States Army
  South) has operational and administrative responsibilities. The operational responsibilities include command
  of forces, direction of operations, and control of assigned operational areas. The administrative
  responsibilities encompass the Service-specific Title 10 requirements for equipping, sustaining, and training
  forces; unit readiness; discipline; and personnel matters.
  2-44. The theater Army serves as the ASCC of the CCMD. It is organized, manned, and equipped to perform
  that role. The ASCC is the command responsible for recommendations to the JFC on the allocation and
  employment of Army forces within an AOR. Figure 2-3 depicts the notional AOR for the command and
  control of Army forces by the theater Army. See ATP 3-93, ATP 4-93, and FM 3-94 for additional
  information on the theater Army. Theater Army tasks and functions include—
  • Executing the CCDR's daily operational requirements.
  • Opening the operational area (for example: JOA, area of operations [AO], and theater of operations).
  • Serving as a joint task force (JTF) or joint force land component for crisis response and limited
  contingency operations.
  • Serving as the primary interface between the Department of the Army, Army commands, and other
  ASCCs.
  • Exercising OPCON of deployed Army forces not subordinated to a JFC.
  • Exercising ADCON of all Army forces operating within the AOR.
  • Exercising OPCON of all joint forces attached to it as either a joint force land component
  headquarters or JTF headquarters as required by the CCDR.