This publication, Army Techniques Publication ATP 3-93 Theater Army Operations November 2014, addresses the theater army's role in the Army operating concept. It describes how the theater army performs its primary role of Army Service component command to the geographic combatant command and how that role-with all of its required functions, tasks, and responsibilities-is executed in support of all phases of the six-phase joint operation construct. It expanded the discussion to include the concepts of theater security cooperation, force-tailored Army forces, and regionally aligned forces, and sustainment concept of support. All concepts are integral to a theater army fulfilling its role in the Army operating concept. ATP 3-93 aligns with FM 3-94 on key topics while expanding on specific topics. These topics include discussions of theater army as an ARFOR, the theater army's execution of Title 10, combatant commander's daily operational requirements, an operational environment, operational variables and mission variables, setting the theater, and setting the joint operations area. ATP 3-93 contains eight chapters: Chapter 1 provides an overview of theater army to include its roles, functions, and tasks. It discusses the Army as an echeloned force and geographic combatant commanders. It discusses Service component responsibilities and the theater army's relationship with other echelons above brigade forces. The chapter concludes with a discussion regarding support from other Services. Chapter 2 provides detailed information regarding the structure of the theater army. It discusses the structure of the theater army headquarters, main command post, contingency command post, and headquarters and headquarters battalion. Chapter 3 provides details on the primary combatant commander's daily operational requirements performed by the theater army. It discusses Title 10 and administrative control of Army forces. It discusses infrastructure assessment and development. Lastly, it discusses developing the concept and operation plans. Chapter 4 provides an overview of setting and supporting the theater of operations. It covers sustainment preparation, theater security cooperation, regionally aligned forces, and training. The chapter discusses operational contract support and establishment of links in support of theater operations. Chapter 5 outlines setting and supporting the joint operations area. It discusses the Army presence and theater army support to the ARFOR. It details communications and enabling capabilities. It also discusses support to special operations forces and force protection. The chapter details Army force generation, sourcing mission requirements, and tailoring Army forces. Chapter 6 discusses sustainment support. It discusses common-user logistics, theater sustainment command, and expeditionary sustainment command. It then discusses Army field support brigades Army contracting command, and medical support. It also discusses reception, staging, onward movement, and integration as well as multinational operations. Chapter 7 discusses the theater army in its role as joint task force or joint force land component command. It details the theater army design and the contingency joint task force headquarters. It examines historical examples and hypothetical scenarios. Lastly, it discusses very large-scale operations. Chapter 8 details theater enabler organizations. It discusses enabling capabilities and the military intelligence brigade. It details several commands. Next, it discusses chemical, biological, radiological, nuclear, and high-yield explosives support. It also discusses other organizations for theater support. There are two appendixes. Appendix A discusses defense support of civil authorities. Appendix B lists Army executive agent responsibilities.