Which zone is established to protect key assets or facilities other than air bases, where weapon systems may be fired at any target not positively recognized as friendly?

• A. Short Range Air Defense Engagement Zone
• B. Special Use Airspace
• C. Weapons Free Zone
• D. Weapons Engagement Zone

Answer: (C)

In air defense, engagement rules are defined by zones that set what you may shoot at a target. The zone used to protect key assets or facilities other than air bases and that allows weapon systems to engage any target not positively recognized as friendly is the Weapons Free Zone. This means once a target is inside that zone, if there’s uncertainty about its identity, you’re authorized to engage, because the priority is rapidly neutralizing threats to the protected asset and asking for positive ID could come too late.

This differs from other concepts: Special Use Airspace is about restricting or controlling where various non-military or military activities can occur in the air, not about engagement rules for unknown targets. A Short Range Air Defense Engagement Zone is typically focused on close-in, short-range protection with stricter identification and engagement criteria. A Weapons Engagement Zone is a broader term used in some doctrine to describe zones with specific engagement rules, but the wording that explicitly allows firing at any non-friendly target around key assets points to a Weapons Free Zone.