- the warning signal that starts a time period of preparation for an enemy environment attack
- the problem which fight plane are airborne and prepared for a surgical procedure
- the timeframe during which armed forces and civil agencies have decided for an enemy atmosphere assault
- the caution sign that begins a period of planning for an enemy air attack
- the condition in which fight aircraft are airborne and ready for an operation
- the period of time where military and civilian agencies are prepared for an enemy atmosphere assault
Hypernym for "air alert"
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