text: Chapter 3
  Services. To support the ARFOR, the theater army also coordinates the projection of additional required
  support from the continental United States, another theater, or an intermediate staging base using air lines of
  communication and sea lines of communication. (See ATP 3-93 for more information on support priorities.)
  EXERCISE COMMAND AND CONTROL OVER ARMY FORCES IN A THEATER
  3-40. The theater army is the ASCC and has the responsibility to control attached and assigned Army forces
  in the AOR through ADCON and OPCON or TACON. As the Army component of the combatant command,
  the ASCC is the ARFOR for the theater. When a subordinate JTF is established containing Army forces, the
  senior Army headquarters in that JTF is normally designated as its ARFOR. Army doctrine distinguishes
  between the Army component of a combatant command and that of a joint force formed by the combatant
  commander.
  3-41. The theater army initially maintains control of all Army units assigned to an AOR until control is
  passed to the senior army force or ARFOR in a subordinate JOA. As part of controlling Army forces, the
  ARFOR maintains ADCON of Army forces and addresses service responsibilities such as coordinating
  ASOS. (See ADP 4-0 for more information on ASOS.)
  PERFORM JOINT ROLES IN LIMITED SCOPE, SCALE, AND DURATION.
  3-42. While serving as the ASCC, the theater army has the capability to perform three joint roles for the
  GCC. With augmentation, the theater army can be the theater JFLCC, a JTF headquarters, or the JFLCC.
  However, these roles can only be performed in limited scope, scale, and duration, unless the JFC provides
  significant augmentation.
  Theater Joint Force Land Component Commander
  3-43. Prior to the establishment of a JOA or a subordinate JTF, the GCC may designate a theater joint force
  land component for coordination and synchronization of day-to-day operations across the AOR. The most
  likely candidate for a theater JFLCC is the GCC’s assigned theater army.
  3-44. Normally the theater joint force land component will be limited to coordinating authority over other
  land components and provide the GCC with a means to synchronize land force activities. This includes the
  initial development of an accurate, timely, and persistent common operational picture of all land force
  activities occurring through the theater. This enhances effectiveness and creates efficiencies across the land
  domain.
  3-45. The primary responsibilities of the theater JFLCC may include but are not limited to—
  * Developing the joint land operations plan.
  * Developing operation plans or operation orders in support of the GCC’s concept of operations and
  optimize the operations of task organized land forces.
  * Providing pre-hostility coordination with other theater-level functional components.
  * Advising the GCC on the prioritization and allocation of land force capabilities.
  * Maintaining a land domain common tactical picture for inclusion into the joint operational
  common operational picture.
  * Providing general support to subordinate commanders and JTFs in the AOR.
  * Conducting and coordinating land component planning.
  * Tracking key leader engagements.
  * Tracking land-based operations, actions, and activities.
  * Conducting joint reception, staging, onward movement, and integration for land forces.
  * Conducting personnel recovery in support of joint land operations and for isolating events
  occurring in an assigned operational area or as tasked by the GCC.
  3-46. In the case of the U.S. homeland, and the joint operations of homeland defense and defense support
  of civil authorities, the designation of a JFLCC to provide coordination for unity of effort between state-
  formed JTFs has become a recurring requirement. A theater JFLCC, normally USA North, is a command
  option used by U.S. Northern Command to provide command and control for 10 USC, land operations for