This Army and Marine Corps multiservice publication serves as doctrinal reference for the employment of mortar squads, sections, and platoons. It contains guidance on tactics and techniques that mortar units use to execute their part of combat operations described in battalion-, squadron-, troop-, and company-level manuals. This publication also contains guidance on how a mortar unit’s fires and displacement are best planned and employed to sustain a commander’s intent for fire support.
NOTES: Some references listed in this doc might have been superseded and/or updated and should be checked for accuracy, which can be easily done using the DA PAM 25-30 web page or downloaded and installed program for checking current and superseded DOD publications (For example purposes only: FM 3-0 was superseded by ADP 3-0, on 10 October 2011) : This document is in PDF format : ATTP 3-21.90 is a joint publication and is also MCWP 3-15.2