What must the Forward Observer (FO) do to ensure a target is saved by the Fire Direction Control (FDC) for future use?

The correct action for the Forward Observer (FO) to ensure that a target is saved by the Fire Direction Control (FDC) for future use is to announce the target for plotting and saving. This action directly communicates the intent to the FDC, allowing them to record the target's location and relevant details efficiently.

When the FO announces the target, it includes all necessary information such as the target's coordinates, type, and any other pertinent details, ensuring that the FDC can plot and store the target effectively. This step is crucial in maintaining an organized and accessible record of targets for potential future engagements.

While transferring the target location using a map could be helpful for additional clarity, it does not ensure that the target is officially recorded by the FDC. Completing a full fire mission report is an important procedure but typically comes after an engagement rather than being specifically aimed at saving a target. Terminating the mission without further action would prevent the target from being recorded at all, as it would imply no further processing of that information. Thus, announcing the target for plotting and saving is the essential step to take.