What brevity term refers to the sighting of a target, non-friendly aircraft, or enemy position?

The term that refers to the sighting of a target, non-friendly aircraft, or enemy position is "Tally." This brevity term is commonly used in military communications to indicate that a person has visually identified a specific target or aircraft, conveying a situation where a unit or individual is aware of a potential threat or target without needing further confirmation through electronic means.

Using "Tally" helps to ensure that all team members are on the same page regarding visual identification and the situation at hand. It indicates a level of situational awareness that is critical in combat scenarios, where quick decisions may need to be made based on what one can see.

The other terms have their specific contexts: "Contact" typically refers to the detection of a target by means other than visual sighting, such as radar, and may not specify whether it is friendly or enemy. "Bogey" specifically denotes an unidentified aircraft, often implying a potential threat but without visual confirmation of its status. "Squirter" refers to a person or vehicle that is attempting to flee from a situation, particularly in the context of an engagement, and does not pertain to general identification of targets. Understanding these distinctions is essential for effective communication in fire support and air operations.