its usefulness for all joint and Army-level commanders and staff. All other engineer FMs (see Appendix A) are based on the foundations described in this manual and are synchronized with their respective joint publications. The foundations of engineer operations are based on the successful employment of engineers, past and present. This manual describes engineer support to Army forces conducting full spectrum operations within the framework of joint operations. As in FM 3-0, this version of FM 3-34 increases the emphasis on simultaneous offensive, defensive, and stability or civil support operations. This manual has been revised to align with revisions to FM 3-0 and other Army and joint doctrine. A series of conferences at the United States Army Engineer School (USAES) convened to guide the changes in this version of FM 3-34. This revision has been driven by major changes to Army and joint doctrine, including the— • Revision of the Army's capstone manual, FM 3-0. • Revision of Joint Publication (JP) 3-34. • Lessons learned from experience fighting the War on Terrorism. • Conversion of the Army to a brigade combat team (BCT)-based modular force that is joint and expeditionary. • Conversion of the Engineer Regiment to the modular engineer force. • Change from maintaining readiness within the "band of excellence" to achieving readiness through the force pool progression dictated by the Army Force Generation (ARFORGEN) Model. FM 3-34 provides operational guidance for engineer commanders and trainers at all echelons and forms the foundation for established curriculum within the engineer portions of the Army’s education system. Information contained in this manual will assist multinational forces and other Services and branches of the Army to plan and integrate engineer capabilities. This doctrine also will assist Army branch schools in teaching the integration of engineer capabilities into Army and joint operations. Terms that have joint or Army definitions are identified in both the glossary and the text. Glossary terms: The glossary lists most terms used in FM 3-34 that have joint or Army definitions. Terms with an asterisk in the glossary indicate that this FM is the proponent FM (the authority). Text references: Definitions printed in boldface in the text indicate that this FM is the proponent FM. These terms and their definitions will be incorporated into the next revision of FM 1-02. For other definitions in the text, the term is italicized, and the number of the proponent FM follows the definition.

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