Under what condition must pilots operate in an Air Defense Identification Zone (ADIZ)?

Pilots must operate in an Air Defense Identification Zone (ADIZ) on an IFR or defense VFR flight plan and maintain communication with Air Traffic Control (ATC). This requirement is critical for national security, as the ADIZ is an airspace area established by a country to monitor and identify aircraft entering its territory. By requiring a flight plan and communication with ATC, authorities can effectively manage air traffic, ensure security measures are adhered to, and respond quickly to potential threats.

The protocols surrounding the ADIZ help in tracking the aircraft's route and intentions, allowing for efficient coordination with military operations if necessary. This structured approach helps maintain safety and security within the controlled airspace. Therefore, understanding that an ADIZ demands active communication with ATC and adherence to a flight plan is essential for pilots operating within such regions.