What is the term for the area of responsibility that should be covered by fire?

The term "Sector of Fire" refers to a specific area assigned to an individual or unit that they are responsible for engaging with fire. This designation is critical in both tactical and operational contexts because it ensures clear understanding and coordination among units operating in close proximity. By defining a specific sector, the unit can maintain effective coverage to minimize any gaps that could be exploited by the enemy or lead to friendly fire situations. The concept helps in maximizing the defensive capabilities and is essential for systematic engagement during both offensive and defensive operations.

In this context, the other terms like "Fire Zone" and "Target Area" do not encapsulate the personal responsibility for fire engagement that is intrinsic to the "Sector of Fire." "Field of Engagement" might suggest a broader area of operation, but it lacks the precise assignment that a sector provides, which ensures accountability and clarity in combat settings.