4. The United Kingdom ■Nuclear-Weapon State
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Nuclear Disarmament |
27.6 points |
Full points 101 |
27.3% |
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Change compared to the Hiroshima Report 2019: +2.6 |
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The size of the U.K. nuclear arsenal has decreased incrementally. The United Kingdom plans to reduce to no more than 120 operationally available warheads and a total stockpile of no more than 180 warheads by the mid-2020s. Construction of a new class of four SSBNs, as replacement for the existing Vanguard-class vessels, is underway. It has not signed the TPNW. Meanwhile, the U.K. has engaged in joint developmental works on nuclear disarmament verification measures with the U.S. and Norway, respectively, and participates in the IPNDV. The U.K. submitted a national report to the 2019 NPT PrepCom. |
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Nuclear Non-Proliferation |
41 points |
Full points 47 |
87.2% |
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Change compared to the Hiroshima Report 2019: +2 |
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The U.K. acceded to the IAEA Additional Protocol with the provision for complementary access visits. All of its civilian nuclear material is subject to the international safeguards. It has proactively engaged in nuclear non-proliferation, including implementation of export controls. |
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Nuclear Security |
25 points |
Full points 41 |
61.0% |
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Change compared to the Hiroshima Report 2019: 0 |
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The U.K. acceded to the IAEA Additional Protocol with the provision for complementary access visits. All of its civilian nuclear material is subject to the international safeguards. It has proactively engaged in nuclear non-proliferation, including implementation of export controls. |
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