Which maneuver control measure is assigned by the maritime commander for fire support to ashore operations?

The correct answer is that the Fire Support Area is specifically assigned by the maritime commander to facilitate effective fire support for operations ashore. This area is designated to optimize the integration of indirect fire and provides a defined geographical zone where units can effectively coordinate and employ fire support assets to assist ground forces in achieving their objectives.

Fire Support Areas are crucial for ensuring that artillery, naval gunfire, and other fire support resources can be delivered accurately and safely without interfering with friendly forces. This measure enhances the ability to manage fires and establishes clear boundaries for the operation of various fire support elements.

In contrast, a Phase Line typically marks a significant time and spatial point in the operation rather than a focused area for fire support. A Boundary serves to delineate the limits of operations between different units and is not specifically tailored for fire support purposes. Additionally, a Fire Support Station refers to areas designated for deploying or positioning specific fire support assets, but does not encapsulate the broader integrative function that a Fire Support Area serves in coordination with maritime operations.