FM 3-84 — Legal Support To Operations

FM 3-84 governs legal support across the range of military operations and in specific types or aspects of operations.

Search FM 3-84

  • Publication number: FM 3-84
  • Title: LEGAL SUPPORT TO OPERATIONS
  • Date: 09/01/2023
  • Proponent: T2COM
  • Status: ACTIVE

View FM 3-84 on armypubs.army.mil


FM 3-84 covers the JAG Corps mission, legal services personnel, Army operations, and legal support at various echelons. It describes four institutional legal functions and support to Soldiers and Families, including legal tasks during large-scale combat operations.

Topics covered

  • JAG Corps mission
  • Legal support to Army operations
  • Army operational concept
  • Legal functions
  • Military justice
  • National security law
  • Soldier and Family legal services
  • Legal support planning

Questions and answers

What is the role of the JAG Corps?

The JAG Corps role is to provide principled counsel and premier legal services to the Army across the range of military operations. (paragraph 1-4)

What does the Office of the Staff Judge Advocate provide?

The Office of the Staff Judge Advocate (OSJA) provides legal support to commanders, staffs, Soldiers, and other eligible individuals supported by a given command. (paragraph 3-4)

What are JALS personnel required to comply with?

Army regulations require JALS personnel to comply with military and civilian codes of professional responsibility and ethics that govern licensure and the practice of law. (paragraph 3-2)

What are judge advocates and civilian attorneys prohibited from doing?

Judge advocates and civilian attorneys are prohibited from providing legal support in any way that violates an applicable rule of legal ethics. (paragraph 3-2)

What support does the United States Army Trial Defense Service provide?

United States Army Trial Defense Service provides legal support to Soldiers regarding judicial and nonjudicial disciplinary matters. It also provides legal support regarding adverse administrative actions. (paragraph 3-5)

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