Which choice is NOT a core fundamental of detect?

In the context of detection fundamentals, "Acquire," "Locate," and "Scan and search" are all essential activities that pertain to the ability to identify and track potential targets or threats. Detecting involves gathering information and assessing the battlefield situation, which includes methods like scanning for potential contacts and specifically locating them for further actions.

On the other hand, "Engage" refers to the action taken once a threat is detected and identified. This is more about interacting with and responding to the identified target, rather than the initial process of detection. Therefore, it does not align with the core fundamentals of the detect phase, which focuses on observing and confirming the presence of targets rather than taking action against them.