text: Preface
  FM 3-34 is the Army doctrinal publication that contains the capstone doctrinal guidance for U.S. Army
  engineers. FM 3-34 demonstrates how engineers contribute to decisive action and provides a common
  framework and language for engineer support to operations. It also constitutes the doctrinal foundation for
  developing other fundamentals and tactics, techniques, and procedures detailed in subordinate engineer
  publications. This manual is the integrating publication that nests engineer doctrine with Army capstone
  doctrine and joint doctrine. It focuses on synchronizing and coordinating the diverse range of capabilities in
  the Engineer Regiment to support the Army and its mission successfully. FM 3-34 provides operational
  guidance for engineer commanders and trainers at all echelons and forms the foundation for the United States
  Army Engineer School (USAES) curricula.
  To comprehend the doctrine contained in FM 3-34, leaders must first understand the elements of unified land
  operations, operational design, and combat power and the operations process as described in ADP 3-0 and
  addressed in ADP 2-0, ADP 3-37, ADP 4-0, ADP 5-0, ADP 6-0, and ADP 6-22. Readers must be familiar
  with ADP 3-07, ADP 3-28, and ADP 3-90. Leaders must understand how offensive, defensive, and stability
  and defense support of civil authorities (DSCA) operations complement each other. They must also
  understand the terms and symbols described in FM 1-02.2.
  The principal audience for this manual is engineer leaders, commanders, noncommissioned officers, and staff
  officers, but all Army leaders benefit from reading it. Trainers, educators, and combat developers throughout
  the Army also benefit from using this manual.
  Commanders, staffs, and subordinates ensure that their decisions and actions comply with applicable United
  States, international, and in some cases host-nation laws and regulations. Commanders at all levels ensure
  that their Soldiers operate in accordance with the law of war and the rules of engagement. (See FM 6-27.)
  FM 3-34 uses joint terms where applicable. Selected joint and Army terms and definitions appear in the
  glossary and the text. Terms for which FM 3-34 is the proponent (the authority) are marked with an asterisk
  (*) in the glossary. Definitions for which FM 3-34 is the proponent publication are boldfaced in the text. For
  other definitions shown in the text, the term is italicized and the number of the proponent publication follows
  the definition.
  FM 3-34 uses the Engineer Regiment as a means to singularly describe the whole of the Army’s engineer
  capability and capacity provided to support Army, Joint, and unified action partner operations.
  FM 3-34 applies to the Active Army, Army National Guard/Army National Guard of the United States and
  United States Army Reserve unless otherwise stated.
  The proponent of FM 3-34 is the USAES. The preparing agency is the G-3/Directorate of Training and
  Doctrine (DOTD), Maneuver Support Center of Excellence (MSCoE). Send comments and recommendations
  on DA Form 2028 (Recommended Changes to Publications and Blank Forms) to Commander, G-3/DOTD,
  MSCoE, ATTN: ATZT-OPD-D, 14000 MSCoE Loop, Suite 270, Fort Leonard Wood, Missouri 65473-8929;
  by e-mail to usarmy.leonardwood.mscoe.mbx.engdoc@mail.mil; or submit an electronic DA Form 2028.