USSR (1983: Doomsday)

History of the USSR
The Union of Soviet Socialist Republics - USSR, Russian: Союз Советских Социалистических Республик - СССР, informally known as the Soviet Union or Soviet Russia, was a constitutionally socialist state that existed on the territory of most of the former Russian Empire in Eurasia between 1922 and 1983.

The Soviet Union had a single-party political system dominated by the Communist Party. Although the USSR was nominally a union of Soviet republics (of which there were 15 after 1956) with the capital in Moscow, it was in actuality a highly centralized state with a planned economy. Much of Soviet society was overseen by national security agencies such as the KGB (which was active from 1954).

The Soviet Union was founded in December 1922 when the Russian SFSR, which formed during the Russian Revolution of 1917 and emerged victorious in the ensuing Russian Civil War, unified with the Transcaucasian, Ukrainian and Belorussian SSRs. After the death of Vladimir Lenin, the first Soviet leader, power was eventually consolidated by Joseph Stalin, who led the country through a large-scale industrialization with command economy and political repression. During World War II, in June 1941, the Soviet Union was attacked by Germany, a country with whom it had signed a non-aggression pact. After four years of warfare, the Soviet Union emerged as one of the world's two superpowers, extending its influence into much of Eastern Europe and beyond.

The Soviet Union and its satellites from the Eastern Bloc were one of two participating factions in the Cold War, a global ideological and political struggle against the United States and its allies; which culmanated with the accidental deployment of nuclear weapons on the 26th September 1983, otherwise known as Doomsday.

Doomsday
September 26, 1983, Colonel   was the watch officer on duty at the Serpukhov-15 bunker near Moscow, monitoring for a US missile attack on the Soviet Union.

Suddenly, the computer-based warning systems reported several US nuclear missiles approaching Soviet territory. The officer on duty considers the alert as being accurate and immediately contacts his superiors. Within minutes, the leaders decide to launch the whole Soviet nuclear arsenal. Logically, the Americans react by launching as well. When the first alerted missile is proved to be a false alarm, it is too late. Thousands of nuclear warheads consequently detonate at targets worldwide.