What brevity term is used for marking a target by infrared (IR) pointer?

The term "Sparkle" is used to designate the process of marking a target with an infrared (IR) pointer. This term is important in military operations, particularly in the context of coordinating airstrikes or artillery targeting, as it effectively communicates to pilots or other units that they should focus their attention on the location indicated by the IR pointer.

When personnel "Sparkle" a target, they utilize the IR beam to highlight it, ensuring that the target can be accurately identified and engaged without confusion. This method of marking targets is especially useful in environments where visual confirmation is difficult, as the IR wavelength can be detected by specific sensors on aircraft and other systems designed for target acquisition.

Understanding this terminology is crucial for effective communication in joint operations involving support from various branches, ensuring that all parties are synchronized and aware of target locations. The other choices, while related to targeting or signaling, do not specifically refer to the act of marking a target with an IR pointer.