U.S. Defense Department Terrorist Threat Conditions

Threatcon Normal -- No threat of terrorist activity is present. Threatcon Alpha -- There is a general threat of possible terrorist activity against installations, building locations, and/or personnel, the nature and extent of which is unpredictable. Threatcon Bravo -- There is an increased and more predictable threat of terrorist activity although no particular target has been identified. Threatcon Charlie -- An incident has occurred or intelligence has been received indicating that some form of terrorist action is imminent. Threatcon Delta -- A terrorist attack has occurred or intelligence has been received that action against a specific location is likely.