The Day One Man Prevented World War 3 ☢️ | The True Story of Stanislav Petrov

Added: 2026-05-22

[00:00:00]In 1983, one man may have stopped World War [music] III completely alone. At the height of the Cold War, the Soviet Union thought the United States had launched [music] nuclear missiles. Sirens were going off. Computers showed attack signals, >> [music] >> and according to Soviet rules, they should strike back immediately. One wrong move could have started a nuclear war that killed millions. [music] The man in charge that night was Soviet officer Stanislav Petrov. The system showed five American missiles flying toward the USSR, but Petrov noticed something strange. He thought, "Why would the US start a war with only five missiles?" [music] The computer said the attack was real. His commanders were waiting. The pressure was insane, but Petrov trusted [music] his gut. Instead of reporting a nuclear attack, he said the system was wrong, >> [music] >> and he was right. The satellites had mistaken sunlight reflecting off clouds for missiles. If Petrov [music] had followed orders, the Soviet Union could have launched nuclear weapons back at America. One calm decision may have saved the world.