text: Judge Advocate General’s Corps Support to Operations
  computer systems; reviewing operation orders (OPORDs), deployment orders,task orders, ROEs, rules for
  the use of force; understanding how their echelon staff sections function and operate; and maintaining
  individual readiness and equipment.
  LEGAL SUPPORT TO CAPABILITIES AND COMBAT POWER
  3-46. Legal support is doctrinally part of the sustainment warfighting function. Like traditional sustainment
  tasks, such as maintenance and transportation, legal tasks support all warfighting functions. However, legal
  support is also integrated into the accomplishment of specific warfighting function tasks, such as command
  and control, and not merely general support. (See FM 4-0 for more information on sustainment.)
  3-47. It is important that JAG Corps leaders view legal support through the lens of warfighting functions and
  not just legal functions. Understanding how the legal functions and tasks relate to the dynamics of combat
  power allows JAG Corps personnel to fully support the Army and its formations and seamlessly integrate
  legal support with warfighting functions.
  LEGAL SUPPORT TO THE OPERATIONS PROCESS
  3-48. Commanders exercise the warfighting function of command and control through the operations
  process. The commander, supported by the staff, plans, prepares, executes, and continually assesses
  operations to achieve mission accomplishment. JAG Corps personnel are part of that staff,and they integrate
  into the operations process and with the other warfighting functions to effectively provide required legal
  support. As such, they are trained in three areas—legal, joint, and tactical. JAG Corps personnel integrate
  into the command by competently participating in all steps of the operations process and CPoperations. (See
  FM 3-0 for more information on command and control.)
  LEGAL SUPPORT TO THE MILITARY DECISION-MAKING
  PROCESS
  3-49. JAG Corps personnel, and specifically judge advocates who serve in SJA, command judge advocate
  (known as CJA), and BJA positions, are members of the commander’s personal and special staff.These judge
  advocates provide legal advice directly to the commander and legal support to the staff and subordinate units
  of the command. These command legal advisors must balance the requirements of supporting the operations
  process as a member of the staff and complying with standard operating procedures (SOPs), as a member of
  the staff, with the duty to provide independent legal advice to commanders. (See FM 6-0 for more information
  on the personal and special staffs.)
  3-50. Participation in operational planning, including the MDMP,is vital to providing timely legal support
  to the staff and subordinate units of the command. Full participation in planning allows OSJA personnel to
  identify legal issues arising from higher echelon headquarters’orders, in proposed courses of action and in
  course of action analysis and comparison, and itallows for development of the concept of legal support prior
  to completion of the plan. Additionally, OSJA personnel have expert subject matter knowledge and critical
  thinking skills that can aid the staff in developing and analyzing plans that meet the commander’s intent.
  3-51. Full participation in planning events can be difficult for OSJA elements because of a limited number
  of personnel and competing interests in the operations process. JAG Corps leaders prioritize OSJA
  participation at key and beneficial points in the planning process. JAG Corps leaders train and develop
  subordinate personnel to understand the MDMP to ensure participants in planning events comprehend the
  goal of each step in the process, the inputs required from the OSJA element, and the anticipated outputs.
  Failure to understand the goals, inputs, and outputs, and failure to prepare for each event reduces the OSJA
  element’s effectiveness in identifying legal issues that arise during the planning process.
  LEGAL INPUTS AND OUTPUTS TO THE MILITARY DECISION-MAKING PROCESS
  3-52. The primary legal outputsof the MDMP arethe concept of legal support, the legal running estimate,
  and assistance to the operations section in the development of the ROE. OSJA elements produce the legal
  annex, Tab C (Legal Support) to Appendix 2 (Personnel Service Support) to Annex F (Sustainment), which