ATP 3-39.10 provides guidance for commanders and staffs on police operations and is aligned with FM 3-39, the keystone military police field manual. This manual addresses police operations across the range of military operations. Police operations support decisive action tasks (offensive, defensive, and stability or defense support of civil authorities [DSCA]). This manual emphasizes policing capabilities necessary to establish order and subsequent law enforcement activities that enable successful establishment, maintenance, or restoration of the rule of law. While this manual focuses on the police operations discipline and its associated tasks and principles, it also emphasizes the foundational role that police operations, in general, play in the military police approach to missions and support to commanders.