Army Sustainment Resource Portal

The final draft of FM 4-0, Sustainment Operations, is currently out for worldwide staffing and comment.

May 2024: Review and adjudications of Final draft Comments
The Sustainment warfighting function appreciates the review and comments provided on the final draft staffing of FM 4-0, Sustainment Operations. The revision is undergoing final reviews in preparation for final approval and release for publishing in early fourth quarter.

This revision describes sustainment operations in support of multidomain operations maintaining the Army's focus on large-scale combat operations. It discusses sustainment operations in the strategic contexts within the current contested operational environments at all levels of warfare. FM 4-0 serves as a companion manual to FM 3-0, Operations.

The sustainment warfighting function is comprised of tasks and functions that enable the continuity of sustainment across the levels of warfare throughout all domains. The tasks and functions are linked collectively and executed across the competition continuum to support operational objectives and unified action partners by enabling freedom of action, extending operational reach, and prolonging endurance during operations.

As part of this revision, the FM 4-0 logic chart (click here to view) provides a graphic display of the field manual and its contents to capture the relationships and contribution of sustainment in operations.

Reading the logic chart from the top to the bottom:

• • The chart starts on the top with the boxes depicting threat characteristics presented by peer adversaries and the anticipated operational environment in which multi domain operations will be conducted.
• • The unified action box captures the role of the military in conducting operations on behalf of the government capturing the importance of the Army's contribution, as part of the joint force conducting unified action. The box on the left it captures the importance of the Army's multidomain operations contributions while on the right-hand side displays the significant role of the sustainment warfighting function.
• • Next the chart depicts how sustainment capabilities are task organized to support operational forces conducting operations (offense, defense, stability, and DSCA) in the strategic contexts of competition, crisis, and armed conflict at echelon across all five domains understood through the three dimensions.
• • The chart concludes by portraying how sustainment of large-scale combat operations requires integration of the sustainment warfighting function into the operations process to enable freedom of action, extend operational reach, and provide the prolonged endurance necessary to accomplish missions, consolidate gains and win our nation's wars.

November 2023: Final draft of FM 4-0, Sustainment Operations
This revision of FM 4-0, Sustainment Operations, captures sustainment operations in support of multidomain operations. This doctrinal revision retains the Army's focus on large-scale combat operations and highlights methods to visualize and conduct sustainment operations in the strategic contexts within the current contested operational environments at all levels of warfare. FM 4-0 is a companion manual to FM 3-0, Operations. The sustainment warfighting function team welcomes your review, comments, and insights on the attached final draft.

This manual is being formally staffed through the Enterprise Task Management System Solutions (ETMS2), originally known as the Task Management Tool (TMT). Please provide comments on the attached standardized comment resolution matrix to your command for consolidation. The use of the matrix is mandatory to facilitate the task of consolidating and adjudicating all comments. Please read the comment matrix primer to understand how to capture comments correctly. Provide rationale for each comment, including page, paragraph, and line number, along with suggested correction or solution. Recommend using specific line-in/line-out comments to avoiding general comments that criticize text content and provide little or no specific recommended corrections.

Please feel free to contact us with any questions or concerns

Thanks for your contributions to our keystone sustainment doctrinal manual! Click Here to view the final draft of FM 4-0.

October 2023: The revision of FM 4-0 based on the publication of FM 3-0, Operations
With the continued preparation and revision of the FM 4-0, Sustainment Operations draft for final staffing, there are several sustainment considerations, based on the publication of FM 3-0, Operations on 11 October 2022. The new publication shifted the Army contribution to unified action from conducting Unified Land Operations to Multidomain operations. Multidomain operations are the combined arms employment of Joint and Army capabilities to create and exploit relative advantages that achieve objectives, defeat enemy forces, and consolidate gains on behalf of joint force commanders. Some of the big ideas captured in FM 3-0 include:

• • Codifying Multidomain Operations as the Army's operational concept.
• • Organizing chapters around the range of military operations that occur along the competition continuum in the context of competition, crisis, and conflict.
• • Describing the Operational Environment (OE) as having five physical domains (air, ground, space, cyberspace, maritime) understood through three dimensions (physical, information, human).
• • Updating the operational framework: deep, close, rear, and support areas within the strategic framework.
• • Establishing the Theater Strategic level of war as a fourth distinct level separate from national strategic framework.
• • Developing new Tenets and new Imperatives applicable to operations.
  • - Tenets describe desirable attributes of operations (Agility, Convergence, Endurance, Depth).
  • - Imperatives are actions Army forces must take to defeat an enemy and succeed in the multidomain OE.
• • Adding a maritime considerations chapter and an appendix on contested deployment based on INDOPACOM threat implications.
• • Adding a maritime considerations chapter and an appendix on contested deployment based on INDOPACOM threat implications.
• • Identifying the Division as the principal tactical warfighting formation

This doctrinal revision of FM 3-0 is nested in the evolution of sustainment doctrine. Sustainment doctrine is shifting from an organization-based focus to a task/function-based focus. Sustainment doctrine, where applicable, is now organized by echelon level within the context of competition, crisis, and armed conflict. The planned updates to the FM 4-0 Sustainment Operations manual mirror the FM 3-0 chapters. The book focuses on describing sustainment through:

• • The purpose of sustaining operations in the change from Unified Land Operation to Multidomain operations.
• • Addressing sustainment operations in the contexts of competition, crisis, and armed conflict.
• • The roles and responsibilities of organizations by highlighting sustainment activities at the national strategic and theater strategic levels of warfare as well as the operational and tactical levels.
• • Sustainment tasks and functions for each element of the sustainment warfighting function (SWfF) logistics, financial management, personnel services, and health service support based on the levels of warfare to apply combat power described and visualized the operational framework of deep, close, rear, and support area operations.
• • Adding a chapter on sustainment considerations and operations in a maritime operational environment (OE).
• • Placing emphasis on contested logistics and efficiencies needed through decision dominance, autonomous distribution, demand reduction, advanced power, maritime operations to conduct sustainment in a contested OE.
• • Adding descriptions of predictive logistics as a means to achieve precision sustainment.
• • Aligning sustainment operations with the tenets and imperatives for success during multidomain operations.
• • Providing a chapter focused on sustainment leadership considerations and challenges.
• • Moving the detailed “Principles of Sustainment” doctrine discussion in Appendix A of the current FM 4-0 to ADP 4-0 to better establish the foundational underpinnings of the SWfF.

August 2023: The revision of FM 4-0 and the creation of the new echelon sustainment doctrine
The revision is aligned with the recent update to FM 3-0, Operations and provides information on how the Army provides sustainment support across the range of military operations during large-scale combat operations. The FM describes how Army forces meet sustainment challenges and conduct multidomain operations as part of a joint and multinational force. FM 4-0 provides tactics and procedures that addresses the four elements of the sustainment warfighting function (logistics, financial management, personnel services, and health service support) and is the capstone Army sustainment doctrine reinforced by the multiple recently published Army Techniques Publications. ATP 4-93, Theater Sustainment Operations, ATP 4-92, Field Army and Corps Sustainment Operations, and ATP 4-91, Division Sustainment Operations, that delve into the detailed techniques for conducting sustainment operations at echelon.

The following manuals are currently being formally staffed through the Enterprise Task Management System Solutions (ETMS2), originally known as the Task Management Tool (TMT). If you have comments, please provide them on the attached standardized comment resolution matrix to your command for consolidation before the suspense date. The use of the comment matrix is mandatory to facilitate the task of consolidating and adjudicating all comments. Please read the comment matrix primer to understand how to capture comments correctly. Provide rationale for each comment, including page, paragraph, and line number, along with suggested correction or solution. Recommend using specific line-in/line-out comments to avoiding general comments that criticize text content and provide little or no specific recommended corrections. Click here for a copy of the blank comment matrix and primer. Note: Access requires CAC credentials.

Please feel free to contact us with any questions or concerns

Thanks for your contributions to our sustainment doctrinal manuals.

Note: Access to the following draft publications requires CAC credentials.

Click Here to view Army Techniques Publication (ATP) 4-71 Contracting Support Brigade (Final Draft)
Suspense 27 May 24

Click Here to view Army Techniques Publication (ATP) 4-93.1 Combat Sustainment Support Battalion (Initial Draft)
Suspense 21 June 24

Click Here to view Army Techniques Publication (ATP) 4-31 Ground Equipment Battle Damage Assessment, Repair, and Recovery (Final Draft)
Suspense 16 July 24

Click Here to view Army Techniques Publication (ATP) ATP 4-98 Army Sustainment Command Operations (Final Draft)
Suspense 17 July 24