text: Armies
  * Execute ASOS in the AO. (See paragraph 3-130.)
  * Assume directed Army, joint, and multinational authorities and responsibilities. (See paragraph 3-
  133.)
  * Shape an assigned operational area. (See paragraph 3-134.)
  * Integrate unified action capabilities to support unified land operations. (See paragraph 3-135.)
  * Plan and coordinate for the consolidation of gains in an assigned operational area. (See
  paragraph 3-137.)
  Execute Command and Control over Multi-Corps Operations
  3-127. The field army’s ability to command and control multi-corps operations is what distinguishes it from
  other echelons. This function is vital to the joint and multinational force’s ability to prevail in large-scale
  ground combat and is central to the field army’s ability to perform the ARFOR role and serve as a joint force
  land component command. Tasks that the field armies may perform to support this function include:
  * Assume command and control of designated Army forces from the theater army when directed.
  * Command and control joint or multinational land forces when assigned.
  * Task-organize attached forces.
  * Manage airspace.
  * Coordinate operational-level sustainment.
  * Coordinate air and missile defense requirements.
  * Conduct area security operations.
  * Synchronize operational movement.
  * Synchronize decisive action to consolidate gains won through competition.
  * Transition from competition to armed conflict.
  * Prepare to conduct multi-corps unified land operations to prevail in large-scale ground combat.
  * Prepare to conduct populace and resource control.
  Execute Administrative Control in the Area of Operations
  3-128. As the ARFOR, the field army commander may exercise ADCON over all Army forces in a JTF,
  including those subordinate to other components. Depending on the JTF organization, the field army
  commander may exercise OPCON of some or all Army forces assigned to the task force and remain
  responsible for ADCON of those forces. However, the exercise of OPCON is a delegation of joint command
  authority and not a function of ADCON.
  3-129. The theater army commander will specify the ADCON responsibilities of the ARFOR. The division
  of ADCON responsibilities between the theater and field armies will vary based upon the operation. The
  ASCC and the field army monitor changes in joint organization carefully, and they may adjust ADCON
  responsibilities based on the situation. Responsibilities for both training and readiness are inherent in
  ADCON, and they are exercised by unit commanders for their units.
  Execute Army Support to Other Services in the Area of Operations
  3-130. The field army provides support to other Services as executive agent and leads Service
  responsibilities, inter-Service agreements, or Service support agreements. This is done to provide common
  item support in the form of capabilities or resources through common-user logistics or delegated executive
  agent responsibilities in a designated AO.
  3-131. When executing ASOS, the field army coordinates with the theater army and JFC staff to determine
  joint requirements and identify responsibilities. ASOS enables joint forces freedom of action and endurance
  by reducing redundancy and creating efficiency.
  3-132. In order to fulfill these responsibilities, the field army commander focuses on operational- and
  tactical-level support involving combat power generation and sustainment during campaigns and joint
  operations. Field army commanders match support and sustainment requirements for a campaign to the Army