Which Air Defense Warning Level indicates attack imminent or in progress?

• A. Yellow
• B. Red
• C. White
• D. Green

Answer: (B)

Red indicates an attack is imminent or in progress. This is the highest alert level and signals immediate defensive actions must be taken, such as alerting units, scrambling interceptor aircraft or activating air defense weapons, tightening command and control, and executing rapid response procedures to neutralize the threat. The other colors set progressively lower levels of urgency: white is normal operations, green means increased vigilance or readiness without a specific threat, and yellow signals that an attack is probable or imminent and escalation to red may be required soon. Understanding that red triggers fast, decisive action helps you respond quickly and correctly in training scenarios.