Which FPCON level applies in the immediate area where a terrorist attack has occurred, or intelligence indicates terrorist action is imminent?

• A. Alpha
• B. Bravo
• C. Charlie
• D. Delta

Answer: (D)

Delta applies because it’s the highest level of protective posture used when a terrorist attack has occurred or intelligence indicates one is imminent in the immediate area. It triggers the most stringent measures to reduce vulnerability in the affected zone: restricting access to essential personnel, boosting patrols and surveillance, increasing screening of people and vehicles, and potentially tightening or pausing routine operations to protect lives and assets while the situation is active. The goal is to contain the threat and prevent further harm where it’s most likely to occur. Lower levels cover less imminent or more general threats and do not mandate the same level of local, immediate protective actions.