ATP 3-21.8: Infantry Rifle Platoon and Squads – Tactics Practice Test

In infantry tactics, 'security operations' refer to specific actions taken to ensure freedom of maneuver for friendly forces while simultaneously protecting those forces from enemy actions. This encompasses a range of activities aimed at maintaining the safety and effectiveness of the main force, which might include reconnaissance, surveillance, and force protection measures. These operations may involve positioning units on the flanks or front of the main body to detect and deter enemy movements, allowing the main force to operate without the immediate threat of enemy engagement.

The focus of security operations is not solely on offensive engagements or establishing a fixed defensive line, but rather on maintaining flexibility and mobility within the battle space, allowing for dynamic responses to evolving tactical situations. Therefore, the essence of security operations lies in supporting the broader mission by safeguarding the operational freedom of the infantry unit.