When may a National Defense Area be established?

• A. When a military aircraft emergency occurs on non-DoD property.
• B. On any DoD property only.
• C. Only during peacetime.
• D. When civilian aircraft emergencies occur.

Answer: (A)

National Defense Areas are restricted zones set up to secure the scene of a military aircraft incident and to protect safety, evidence, and national security. They may be established whenever a military aircraft experiences an emergency, even if the incident occurs on property that is not owned by DoD. This allows DoD and local authorities to control access, coordinate firefighting and rescue, and safeguard sensitive information, regardless of where the aircraft incident happens. That’s why this scenario fits best: a military aircraft emergency on non-DoD property. The other options limit the NDA to DoD land, restrict it to peacetime, or tie it to civilian aircraft emergencies, which doesn’t reflect how NDAs are used in practice.