text: Introduction
  FM 4-0 contains seven chapters and six appendices:
  Chapter 1 provides an overview of Army sustainment operations, introduces the four elements of the
  sustainment warfighting function, and discusses the principles of sustainment. It also provides an overview
  of Army operations and sustainment challenges presented by the spectrum of violence. The chapter also
  describes the Army strategic context and the tenets of operations and imperatives in which sustainment forces
  must operate. It describes the operational environment and contested logistics environment. The chapter
  concludes describing sustainment of multidomain operations, the authorities and responsibilities vested in
  the combatant commander, and Title 10 sustainment requirements and various executive agent
  responsibilities.
  Chapter 2 provides an overview of sustainment roles, capabilities, and a general discussion of sustainment
  organizations at the national strategic, theater strategic, operational, and tactical levels of warfare. This
  chapter concludes with a discussion of joint command relationships, Army command and support
  relationships, and command and support relationships by echelon.
  Chapter 3 provides an overview of sustainment during competition below armed conflict. It also discusses
  sustainment planning considerations during competition and describes sustainment roles and responsibilities
  by echelon during competition.
  Chapter 4 provides an overview of Army operations during crisis. It discusses sustainment planning
  considerations, considerations for forcible entry operations, and describes roles and responsibilities of
  organizations for sustainment operations by echelon during crisis.
  Chapter 5 provides an overview of sustainment operations during armed conflict. It discusses the link
  between sustainment organizations and their associated tasks in the strategic, operational, and tactical levels
  of warfare. This chapter also discusses sustainment of large-scale combat operations, sustainment of
  defensive operations, and sustainment of offensive operations.
  Chapter 6 describes sustainment operations in a maritime environment. It begins with a discussion on the
  characteristics of the maritime environment and the challenges they pose. It also discusses planning
  considerations for sustainment in a maritime environment.
  Chapter 7 describes the operations process and the sustainment commander’s importance in driving the
  operations process. It describes how sustainment commanders use operational art. The chapter also discusses
  how sustainment commanders can adapt their formations for missions and transitions. It concludes with
  training considerations for sustainment units and sustainment leader development.
  Appendix A describes quartermaster operations and the functions of the Quartermaster Corps.
  Appendix B describes transportation operations and the functions of the Transportation Corps.
  Appendix C describes ordnance operations and the functions of the Ordnance Corps.
  Appendix D discusses Army sustainment information systems and the importance of linking them to
  command and control systems.
  Appendix E discusses and provides examples of logistics status reports and personnel status reports.
  Appendix F describes the sustainment symbols within FM 4-0.
  The introductory table outlines changes to Army terminology reflected in FM 4-0.
  Introductory table. New, modified, and rescinded terms
  Term Action
  precision sustainment New term
  predictive logistics New term