Treaty Between the United States of America and the Russian Federation on Measures for the Further Reduction and Limitation of Strategic Offensive Arms Договор между Российской Федерацией и Соединёнными Штатами Америки о мерах по дальнейшему сокращению и ограничению стратегических наступательных вооружений | |
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Type | Strategic nuclear disarmament |
Drafted | 19 May – 9 November 2009 |
Signed | 8 April 2010 |
Location | Prague, Czech Republic |
Effective | 5 February 2011[1] |
Condition | Ratification of both parties |
Expiration | 5 February 2026[a][b] |
Parties |
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Languages | English, Russian |
New START (Russian abbrev.: СНВ-III, SNV-III from сокращение стратегических наступательных вооружений "reduction of strategic offensive arms") is a nuclear arms reduction treaty between the United States and the Russian Federation with the formal name of Measures for the Further Reduction and Limitation of Strategic Offensive Arms. It was signed on 8 April 2010 in Prague,[3][4] and after ratification[5][6] it entered into force on 5 February 2011.[1]
New START replaced the Treaty of Moscow (SORT), which was to expire in December 2012. It follows the START I treaty, which expired in December 2009; the proposed START II treaty which never entered into force; and the START III treaty, for which negotiations were never concluded.
The treaty calls for halving the number of strategic nuclear missile launchers. A new inspection and verification regime will be established, replacing the SORT mechanism. It does not limit the number of operationally inactive nuclear warheads that can be stockpiled, a number in the high thousands.[7]
On 21 February 2023, Russia suspended its participation in New START.[8] However, it did not withdraw from the treaty, and clarified that it would continue to abide by the numerical limits in the treaty.[9][10][11]
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