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31/07/1991 The US and the USSR agree to cut stocks of nuclear warheads

The START was a bilateral treaty between the USA and the USSR on the reduction and limitation of strategic offensive arms. The treaty was signed in July 1991 and entered into force in December 1994. The treaty barred its signatories from deploying more than 6,000 nuclear warheads atop a total of 1,600 inter-continental ballistic missiles and bombers.