ATP 3-21.9 addresses the tactical application of techniques associated with the offense, defense, and enabling tasks for the Stryker Infantry rifle platoon and squad. ATP 3-21.9 does not discuss defense support of civil authorities (see ADP 3-28 and ATP 3-28.1) and the element of stability within decisive action (see ATP 3-21.11 chapter 4). Employing the techniques addressed in ATP 3-21.9 requires using and integrating the techniques found in ATP 3-21.11 and ATP 3-21.21 and the tactics and procedures found in FM 3-96, tactics are the employment, ordered arrangement, and directed actions of forces in relation to each other (ADP 3-90). Procedures are standard, detailed steps that prescribe how to perform specific tasks (see CJCSM 5120.01C).
DesignationATP 3-21.9
EditionJun 2025
StatusActive
ProponentTRADOC
Pages452
FunctionSmall Unit Tactics
EchelonSquad
CollectionCurrent Doctrine
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