nuclear alert
Radiological threat notification
Nuclear alert is a state of heightened military readiness in response to a perceived nuclear threat.
Armed forces may be placed on nuclear alert during international crises, signaling preparation for potential nuclear warfare: The president ordered strategic forces to nuclear alert.
Alert levels range from routine vigilance to imminent launch readiness.
- early warningAlert before event occurs
- sirenWailing alert device
- air raidAerial military attack
- missileSelf-guided airborne weapon
- bunkerReinforced subterranean stronghold
duck and cover · fallout · ground zero · warning · radiation · countdown · doomsday clock · evacuation · red · red button · panic · shelter · launch · first strike · threat · emergency · warhead · crisis
- alertsalarm, warning, notification, push notifications, tornado watch
- Warning Systemsalarm, alarms, early warning, early warning system, warning signal
- alert levelsDEFCON, elevated, guarded, low, moderate
- Yom Kippur WarYom Kippur War, Sinai Peninsula, Suez Canal, Israel, Syria
nuclear alertstand down
Withdraw from readiness
all clear · safety · security · nuclear disarmament · demilitarization
nuclear alertdrill
Hole-boring device
training exercise · simulation · false alarm · practice run · war game
nuclear alertstand down
Withdraw from readiness
peacetime · détente · nuclear disarmament · demilitarization · ceasefire
nuclear, alert, nucleus, nuclei, nucleic, nucleotide, alerts, alerted, alerting