What term describes the distance within which the ground troops can safely operate without risk from fire support?

The term that describes the distance within which ground troops can safely operate without risk from fire support is "Danger Close." This term specifically refers to a situation where friendly forces are in proximity to the target area, leading to a heightened risk if munitions are used. In military operations, maintaining awareness of this distance is crucial for coordinating fire support effectively while ensuring the safety of ground troops.

The concept of "Danger Close" typically applies to situations where artillery, rockets, or air support are being employed, and it establishes a limit that dictates how close these types of fire support can be utilized relative to friendly forces. Understanding this terminology is essential for Fire Support Team members to execute their missions successfully while minimizing the risk of friendly fire incidents.

The other terms provided in the question do not accurately capture this specific safety concern tied directly to the proximity of fire support to ground troops. Target Distance may refer to general measurements in a tactical sense, while Protection Zone and Fire Safety Zone do not specifically define the context of risks arising from engaging fire support units in close proximity to friendly positions.