text: Chapter 3
  violence is required to deter adversary aggression. This includes these tasks that occur across the competition
  continuum:
  * Provide ASOS.
  * Conduct theater security cooperation.
  * Assess and develop infrastructure.
  * Develop concept and operation plans.
  * Maintain threat orders of battle and provide indications and warnings of changes in an OE.
  Provide Army Support to Other Services
  3-18. In addition to providing support to Army forces, the theater armies provides support to other Services
  as directed by executive agent and lead Service designations, 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.
  3-19. In order to fulfill these responsibilities, theater army commanders focus on operational-level theater
  support involving combat power generation and sustainment during campaigns and joint operations. They
  match support and sustainment requirements for a campaign to the Army combat power capabilities that
  support the combatant commander’s requirements. ASOS enables joint forces freedom of action and
  endurance by reducing redundancy and creating efficiency. During force planning, theater armies must
  account for not only the support requirements for Army forces but also those ASOS requirements to enable
  the joint force.
  3-20. In addition to controlling Army forces, the theater army coordinates ASOS. ASOS includes provision
  of common-user logistics and executive agent support to the joint force commander as required by the JFC
  establishing authority. The theater army coordinates support to other services including, but not limited to—
  * Missile defense.
  * Fire support.
  * Base defense.
  * Transportation.
  * General engineering.
  * Intra-theater medical evacuation.
  * Veterinary services.
  * Logistics management.
  * Communications.
  * Chemical, biological, radiological, and nuclear operations.
  * Counter weapons of mass destruction.
  * Explosive ordnance disposal.
  3-21. An additional aspect of ASOS is providing common user logistics throughout the AOR. Common-user
  logistics are materiel or service support shared with or provided by two or more Services, Department of
  Defense agencies, or multinational partners to another Service, Department of Defense agency, non-
  Department of Defense agency, and/or multinational partner in an operation (JP 4-09). 10 USC authorizes a
  GCC to designate a Service (usually the dominant user or most capable Service) to provide common-user
  logistics for the entire theater, areas in a theater, or specific operations.
  3-22. Examples of common-user logistic responsibilities that the GCC may task the Army component with
  providing other services include—
  * Wartime supply of Classes I, II, III (B), IV, and IX in-theater receipt, storage, and issue.
  * Single integrated medical logistics management.
  * Finance and comptroller operations.
  * Airdrop equipment and systems.
  * Billeting, medical, and food service support for transient personnel during other than unit moves.