What is the primary purpose of a Final Protective Line (FPL)?

The primary purpose of a Final Protective Line (FPL) is to serve as a predetermined line of grazing fire designed to stop an enemy assault. An FPL is typically established to create a controlled, defensive measure that maximizes the effectiveness of available firepower when an enemy force approaches. By focusing fire along this line, defenders can create a significant barrier that disrupts and inflicts severe damage on attacking forces while minimizing the risk of friendly fire.

This concept is essential in military tactics, as it allows units to prepare and coordinate their defensive efforts effectively. Troops on the ground know the specific line where their weapons will be aimed, ensuring that fire is concentrated and precise, thereby enhancing the likelihood of halting the enemy’s advance.