Enlarge / Former Soviet Colonel Stanislav Petrov sits at home on March 19, 2004 in Moscow. Petrov was in charge of Soviet nuclear early warning systems on the night of September 26, 1983, and decided not to retaliate when a false “missile attack” signal appeared to show a US nuclear launch. He is feted by nuclear activists as the man who “saved the world” by determining that the Soviet system had been spoofed by a reflection off the Earth.

Former Soviet Air Defense Colonel Stanislav Petrov, the man known for preventing an accidental nuclear launch by the Soviet Union at the height of Cold War tensions, has passed away. Karl Schumacher, a German political activist who first met Petrov in 1998 and helped him visit Germany a year later, published news of Petrov’s death after learning from Petrov’s son that he had died in May. Petrov was 77.

Petrov’s story has since been recounted several times by historians, including briefly in William Taubman’s recent biography of former Soviet leader Mikhail Gorbachev, Gorbachev: His Life and Times. Ars also wrote about Petrov in our 2015 feature on Exercise Able Archer. On the night of September 26, 1983, Petrov was watch officer in charge of the Soviet Union’s recently completed US-KS nuclear launch warning satellite network, known as “Oko” (Russian for “eye”). To provide instant warning of an American nuclear attack, the system was supposed to catch the flare of launching missiles as they rose.

That night, just past midnight, the Oko system signaled that a single US missile had been launched. “When I first saw the alert message, I got up from my chair,” Petrov told RT in a 2010 interview. “All my subordinates were confused, so I started shouting orders at them to avoid panic. I knew my decision would have a lot of consequences.”

Then a second alarm sounded. “The siren went off for a second time,” Petrov recounted. “Giant blood-red letters appeared on our main screen, saying START. It said that four more missiles had been launched.”

If the alarm had been real, it meant that missiles would reach the Soviet Union in 30 minutes. At the time, Soviet leader Yuri Andropov was ailing. If Petrov had followed procedures in place, he had less than 15 minutes to alert Andropov of a nuclear launch—and an immediate launch of ICBMs would have been ordered.

“My cozy armchair felt like a red-hot frying pan, and my legs went limp,” Petrov told RT. “I felt like I couldn’t even stand up. That’s how nervous I was when I was taking this decision.”

Because of the relatively small number of detected launches, Petrov was convinced the alert was some sort of error. Doctrine held that the US would stage a massive first strike if it decided to preemptively attack the Soviets. Furthermore, there was no data on bomber launches or other signals of impending attack. Petrov overruled the alert, which was later determined to have been caused by solar reflections off of clouds over the United States.

Because the human in the loop was a thinking human—Stanislav Petrov—Andropov was never alerted, and there was no response to a falsely detected attack. And because of that, we are all still here today. Покойся с миром (Pokoysya s mirom), Colonel Petrov. Rest in peace.


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