Army Techniques Publication ATP 3-09.23 (FM 3-09.21) Field Artillery Cannon Battalion September 2015 has seven chapters and two appendices: Chapter 1 provides the organizational framework for the FA cannon battalion found within a BCT a DIVARTY or a FAB. Section I begins with a brief description of the corps, FAB, division, DIVARTY, and the BCTs. Section II is devoted to the FA battalion mission and organization. Section III closes with a discussion of FA battalion key personnel and responsibilities. Chapter 2 describes the FA battalion mission command. Section I begins by describing command and support relationships. Section II describes the FA battalion command post and its operation. Section III details FA battalion communications. Chapter 3 provides an overview of the FA battalion planning process. Section I provides a brief overview of the military decisonmaking process. Section II is an overview of FA battalion intelligence preparation of the battlefield; and Section III addresses FA battalion rehearsals. Chapter 4 describes internal and external information collection support to the detect function. Section I begins with a summary description of support from information collection assets external to the FA battalion. Section II describes support to the detect function provided by weapons locating radars organic to the FA battalion. Chapter 5 focuses on the execution of attack with fires. Section I covers the fire mission process, including tactical and technical fire direction, massed fires, and continuity of operations. Section II discusses various types of fire missions. Section III provides information on counterfire. Section IV discusses FA battalion support for suppression of enemy air defenses (SEAD) operations. Section V provides general information on FA battalion meteorological operations and Section VI discusses FA battalion survey considerations. Chapter 6 discusses how a FA battalion applies previously addressed techniques and principles in the context of FA operations in a variety of operational situations. Section I discusses key considerations for FA support. Section II discusses FA tasks common to operations. Sections III and IV cover FA operations in support of offensive and defensive tasks. Section V details FA support of other unique tactical operations, such as airborne operations. Section VI addresses FA support of stability tasks and defense support of civil authorities. Section VII discusses climate and terrain considerations that affect FA operations. Chapter 7 describes the sustainment warfighting function as it relates to the FA battalion. This chapter has 13 sections: Section I - FA Battalion Sustainment Overview. Section II - Organization and Functions. Section III - Sustainment Planning. Section IV - Supply and Transportation. Section V - Explosive Ordnance Disposal. Section VI - Financial Management. Section VII - Human Resources Support. Section VIII - Religious Support. Section IX - Legal Support. Section X - Health Service Support. Section XI - Maintenance. Section XII - Support Areas. Section XIII - Sustainment Support Planning. Appendix A discusses development, format, and content of a formal FA battalion operation order written in the five-paragraph field order format. Section I provides context for development of the FA battalion operation order including the operation order, concept of operations, fire support (FS) plan, and attendant FA support. Section II is an annotated outline that provides basic guidance on the content for various parts and paragraphs of the FA battalion operation order. Section III provides an example of the FA battalion operation plan, operation order and associated annexes. Appendix B provides a discussion of techniques associated with a composite battalion of two different howitzer systems. The glossary contains acronyms and defined terms.