FM 3-34.22 - Army Electronic Publications & Forms - U.S. Army

Introduction
This manual incorporates those areas of emerging doctrine from the manuals above and—
� Links assured mobility to the six warfighting functions and across the engineer functions.
� Integrates engineer reconnaissance capabilities, specifically the engineer reconnaissance team
(ERT), within the combined arms team.
� Acknowledges the term and concept shift from river-crossing operations to combined arms gap
crossing operations.
Note. The three types of gap crossings are also redefined to align with the three types of
breaching operations—introducing covert gap crossing as the third type of gap crossing.
� Acknowledges the development of clearing operations (area and route clearance) as a tactical
enabling operation.
Finally, the OE on which this manual is based is more variable than the OE on which previous doctrine was
based. Engineers must be prepared to go into any OE and perform the full range of engineer tasks in support of
the maneuver commander while dealing with a wide range of threats and other influences. It builds on the
collective knowledge and wisdom gained through recent operations (combat and operations other than war)
numerous exercises, and the deliberate process of informed reasoning throughout the Army. It is rooted in timetested
principles and fundamentals, while accommodating new technologies and diverse threats to national
security.
11 February 2009 FM 3-34.22 ix