Which term refers to a selected line of fire to check an enemy assault?

The term that refers to a selected line of fire to check an enemy assault is known as the Final Protective Line. This is a key defensive position where units establish a specific line of engagement designed to halt or disrupt an enemy attack. The purpose of this line is to provide cover and fire support for friendly forces, ensuring they can effectively respond to an enemy assault. By preparing a Final Protective Line, units can optimize their defensive capabilities, ensuring that all firepower is directed towards the most critical points of attack from the enemy.

In a tactical context, this concept is essential for any ground combat operation, as it creates a defined zone where friendly troops can concentrate their firepower effectively and coordinate their defenses. This strategic concept helps maintain operational integrity and protects key assets from potential enemy overruns.

Other terms, while relevant to military operations, do not specifically denote a fixed line for checking an enemy advance in the same way. Decisive Terrain refers to advantageous ground that can provide a tactical edge, while Assault Position pertains to where attacking forces stage before launching an assault. Support Force generally denotes additional units providing assistance, but it does not specifically capture the idea of a defensive line set to counter an enemy assault.