text: Appendix D
  D-10. Once granted by the Secretary of Defense, the JFC has the authority to form a joint headquarters under
  a named operation. Through this authority, the JFC establishes subordinate commands, assigns
  responsibilities, establishes or delegates appropriate command relationships, and establishes coordinating
  instructions for the component commanders. This contributes to the forming of a joint headquarters.
  D-11. Forming a joint headquarters provides for unity of command, centralized planning and direction, and
  decentralized execution. Unity of command is necessary for effectiveness and efficiency. Centralized
  planning and direction are essential for controlling and coordinating the efforts of the forces. Decentralized
  execution is essential because no one commander can control the detailed actions of a large number of units
  or individuals.
  D-12. In order for an Army echelon to fully exercise its new joint authorities and provide new capabilities, it
  must first man, train, and equip for its new joint role. There are many challenges associated with an Army
  echelon above brigade preparing to form and transition to a joint headquarters. These challenges come in
  terms of the time it takes to form, and other activities such as planning and managing transitions, manning
  the headquarters, equipping the headquarters, training the staffs, and exercising the headquarters. Paragraphs
  D-13 through D-43 focus on the activities an Army headquarters executes as it forms and transitions into a
  joint headquarters. Figure D-3 (on page D-6) is an example of a process and activities the headquarters may
  perform to reach joint headquarters capability. (See TC 6-6 for more information on transitioning to a joint
  headquarters.)
  Figure D-3. Forming and transitioning to a joint headquarters
  TIME TO FORM
  D-13. Ideally, Army units designated for transition to a joint headquarters have six months or more before
  transitioning. Six months provides the unit time to complete the recommended Army training tables, which
  are found in TC 6-6. However, a typical transition to a joint headquarters is less than 42 days.
  D-14. In cases where an Army unit must transition quickly, there are a number of products and resources that
  assist commanders, joint task forces, and staffs in expediting the process of forming the JTF headquarters
  and organizing the staffs for an effective transition. Some of these products and resources can be found on