Russian Doomsday Device

"The Soviets Made A Real Doomsday Device In The '80s And The Russians Still Have It Today".

Curiously, the USSR "Dead Hand" doomsday system may have been for the Soviet nuclear commanders' benefit:

Dead Hand, it turns out, may not have been primarily a deterrent against the Americans launching a nuclear attack against the Soviets, but rather was a Soviet-built safeguard to prevent themselves from launching a nuclear attack unnecessarily.