ATP 3-05.2 — Foreign Internal Defense

ATP 3-05.2 governs foreign internal defense planning and conduct throughout the full range of military operations.

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  • Publication number: ATP 3-05.2
  • Title: FOREIGN INTERNAL DEFENSE
  • Date: 08/19/2015
  • Proponent: T2COM
  • Status: ACTIVE

View ATP 3-05.2 on armypubs.army.mil


ATP 3-05.2 covers FID organization, planning, training, employment, operations, redeployment, legal considerations, intelligence support, and security assistance. It outlines the necessary requirements for conducting, planning, preparing, and executing missions, and states that decisions and actions comply with applicable laws and regulations.

Applies to: ATP 3-05.2 applies to the Active Army, Army National Guard and Army National Guard of the United States, and United States Army Reserve unless otherwise stated.

Topics covered

  • Foreign internal defense
  • Internal defense and development
  • FID planning
  • Training and advisory assistance
  • Site survey procedures
  • Security assistance operations
  • Insurgency and counterinsurgency
  • Postmission debriefing procedures

Questions and answers

What must commanders and staffs comply with during foreign internal defense operations?

Commanders, staffs, and subordinates ensure their decisions and actions comply with applicable U.S., international, and, in some cases, host nation (HN) laws and regulations.

What must Army commanders ensure about their Soldiers?

Commanders at all levels ensure their Soldiers operate in accordance with the law of war and the rules of engagement (ROE) (see FM 27-10).

What is the centerpiece of any foreign internal defense program?

The HN IDAD program is always the centerpiece of any FID program. (paragraph 2-49)

What must FID plans reflect?

Plans must reflect national security priorities and guidance; therefore, FID must be considered within the context of the priorities for the AOR as a whole. (paragraph 2-33)

What does planning translate strategic guidance into?

Planning translates strategic guidance and direction into executable OPLANs and orders for contingency or crisis action response. (paragraph 3-14)

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