Documented Nuclear Close Calls
Confirmed records highlight the following incidents as serious near-misses where nuclear escalation was narrowly avoided:
Technical Failures & False Alarms
Confirmed records indicate multiple incidents were caused by technical malfunctions in early warning systems:
NORAD Computer Errors (1979-1980)
- November 9, 1979: Training tape depicting Soviet attack accidentally loaded into live NORAD system
- June 3, 1980: Faulty computer chip showed random missile counts (2, 200, then 2,000 incoming)
- Both incidents triggered initial alert procedures before being identified as errors
Soviet System Glitches
- 1983 False Alarm: New Oko satellite system misinterpreted sunlight reflections as missile launches
- System was designed to detect exactly this type of attack
- Petrov's decision is widely credited with preventing escalation
2018 Hawaii False Missile Alert
- January 13, 2018: A Hawaii Emergency Management Agency employee pushed the wrong button during a ballistic missile alert drill, sending a live emergency alert to all phones, TVs, and radios statewide: "BALLISTIC MISSILE THREAT INBOUND TO HAWAII. SEEK IMMEDIATE SHELTER."
- During the 2017-2018 North Korea crisis, the alert was widely interpreted as a nuclear attack from North Korea
- It took 38 minutes to issue a retraction. A subsequent FCC investigation cited insufficient management controls, poor software design, and human factors
- Hawaii EMA administrator Vern Miyagi and executive officer Toby Clairmont resigned in the aftermath
The Problem of False Alarms
Early warning systems are designed with extreme sensitivity to ensure real attacks are detected. This means false alarms are inevitable. The question becomes: how many false alarms before a real one is dismissed or a false one believed?
Human Decisions That Saved Us
In several incidents, individual humans chose to deviate from protocol or question their systems:
Vasili Arkhipov (1962)
- Soviet submarine officer during Cuban Missile Crisis
- Captain and political officer wanted to launch nuclear torpedo
- Arkhipov was the only one of three required officers to refuse
- Often described as "the man who saved the world"
Stanislav Petrov (1983)
- Soviet missile defense officer on duty during false alarm
- System showed 5 U.S. missiles incoming
- Decided system was malfunctioning based on several factors
- Did not report it as attack, contrary to protocol
Boris Yeltsin (1995)
- First time Russian nuclear briefcase was activated for possible use
- Had minutes to decide whether to launch retaliatory strike
- Chose to wait; rocket was identified as scientific before deadline
Lessons Learned
What These Incidents Teach Us
- Systems Fail: Even sophisticated early warning systems produce false alarms
- Humans Are Critical: Final decisions should involve human judgment
- Time Pressure Is Dangerous: Short decision windows increase risk
- Communication Matters: Many incidents worsened by poor communication
- Single Points of Failure: Sometimes one person made the difference
Policy Changes Resulting from Close Calls
- Moscow-Washington hotline (after Cuban Missile Crisis)
- Improved early warning verification procedures
- De-alerting discussions (ongoing)
- Pre-notification of missile tests
Modern Risks
While some Cold War risks have diminished, new concerns have emerged:
Current Concerns
- Cyber Vulnerabilities: Could false data be injected into warning systems?
- Hypersonic Weapons: Reduced warning time increases pressure
- Automated Decision Systems: Reduced human oversight risk in defense workflows
- More Nuclear States: Nine countries, more potential for error
- Arms Control Erosion: Less verification, more uncertainty
The Ongoing Risk
Nuclear close calls are not just history. The technical and human factors that caused past incidents still exist. Maintaining awareness and improving safeguards remains critical.
Frequently Asked Questions
How many times have we come close to nuclear war?
There are at least 5-6 well-documented major incidents and potentially dozens of smaller near-misses. The most serious were during the Cuban Missile Crisis (1962), the Petrov incident (1983), and the Norwegian rocket incident (1995). The 2018 Hawaii false missile alert demonstrated that false alarms remain a modern risk. Many incidents remain classified or unknown.
Who is the man who saved the world from nuclear war?
Two individuals are commonly called "the man who saved the world": Vasili Arkhipov (refused to authorize nuclear torpedo launch in 1962) and Stanislav Petrov (correctly identified false alarm in 1983). Both made individual decisions that likely prevented nuclear war.
Could a false alarm still cause nuclear war today?
Yes, the risk still exists. While systems have improved, false alarms still occur. Factors like reduced warning time (hypersonic weapons), cyber vulnerabilities, and degraded communications during crises could still lead to catastrophic miscalculation.