• Thumbnail for US–UK Mutual Defence Agreement
    The USUK Mutual Defense Agreement, or the 1958 UKUS Mutual Defence Agreement, is a bilateral treaty between the United States and the United Kingdom...
    57 KB (6,734 words) - 02:16, 25 January 2025
  • Thumbnail for Trident (UK nuclear programme)
    McMahon Act, and the 1958 USUK Mutual Defence Agreement (MDA), which allowed Britain to acquire nuclear weapons systems from the US, thereby restoring the...
    126 KB (13,237 words) - 21:11, 4 April 2025
  • Thumbnail for HMS Dreadnought (S101)
    reactor, a design made available as a direct result of the 1958 USUK Mutual Defence Agreement. The Royal Navy had been researching designs for nuclear propulsion...
    15 KB (1,427 words) - 20:35, 10 December 2024
  • Thumbnail for Polaris Sales Agreement
    as a credible deterrent. Along with the 1958 USUK Mutual Defence Agreement, the Polaris Sales Agreement became a pillar of the nuclear Special Relationship...
    30 KB (3,779 words) - 03:56, 9 April 2025
  • Thumbnail for Nuclear weapons of the United Kingdom
    the amendment of the McMahon Act. Since the 1958 USUK Mutual Defence Agreement, the US and the UK have cooperated extensively on nuclear security matters...
    189 KB (21,603 words) - 20:55, 25 May 2025
  • Thumbnail for Tube Alloys
    thermonuclear bomb, the United Kingdom and the United States signed the USUK Mutual Defence Agreement, which resulted in a resumption of Britain's nuclear Special...
    71 KB (9,418 words) - 22:07, 12 April 2025
  • Thumbnail for Quebec Agreement
    Special Relationship between America and Britain under the 1958 USUK Mutual Defence Agreement. The aide-mémoire was initialled in duplicate. On the copy kept...
    61 KB (7,831 words) - 15:58, 1 February 2025
  • Thumbnail for Nassau Agreement
    of the nuclear Special Relationship in the form of the 1958 USUK Mutual Defence Agreement, which allowed Britain to acquire nuclear weapons systems from...
    46 KB (6,028 words) - 14:25, 25 May 2025
  • Thumbnail for AUKUS
    (SEATO) Tizard Mission UKUSA Agreement – Multilateral signals intelligence treaty signed in 1946 USUK Mutual Defence Agreement United States foreign policy...
    165 KB (14,612 words) - 08:54, 3 May 2025
  • Rolls-Royce PWR (category Trident (UK nuclear programme))
    Westinghouse S5W reactor, provided to Britain under the 1958 US-UK Mutual Defence Agreement. The first British naval reactor was the PWR1. It was based...
    22 KB (2,017 words) - 08:37, 23 April 2025
  • Thumbnail for Operation Grapple
    Relationship with the United States in the form of the 1958 USUK Mutual Defence Agreement. During the Second World War, Britain had a nuclear weapons...
    97 KB (11,730 words) - 20:50, 24 May 2025
  • Thumbnail for Yellow Sun (nuclear weapon)
    Crisis. These negotiations would lead to the USUK Mutual Defence Agreement in 1958. With access to US designs, the original plan to use Green Granite...
    11 KB (1,431 words) - 20:00, 24 February 2025
  • Thumbnail for North Atlantic Treaty
    Cooperation Agreement Signing Ceremony". Archived from the original on 9 August 2024. Retrieved 31 August 2024. "Denmark, U.S. reach defence agreement". Reuters...
    69 KB (5,616 words) - 01:24, 28 May 2025
  • Thumbnail for Thermonuclear weapon
    nuclear designs with the United Kingdom, leading to the 1958 USUK Mutual Defence Agreement. Instead of continuing with its own design, the British were...
    106 KB (12,154 words) - 09:52, 30 May 2025
  • Thumbnail for British hydrogen bomb programme
    hydrogen bomb, along with the Sputnik crisis, resulted in the 1958 USUK Mutual Defence Agreement, in which the nuclear Special Relationship was restored. The...
    73 KB (9,775 words) - 10:03, 14 May 2025
  • Thumbnail for British nuclear testing in the United States
    maintain their nuclear weapons. This effort culminated in the 1958 USUK Mutual Defence Agreement. One of the results of that treaty was that Britain was allowed...
    46 KB (3,912 words) - 09:05, 16 March 2025
  • signed in 1996, but which, as of 2015, has not come into force. US-UK Mutual Defence Agreement Atomic Energy Research Establishment Frank Barnaby John Dolphin...
    21 KB (2,123 words) - 20:39, 20 May 2025
  • Thumbnail for Nuclear sharing
    about these agreements and interpretations at that time, these claims have been thoroughly debunked. 1958 USUK Mutual Defence Agreement United States...
    52 KB (5,119 words) - 22:57, 18 May 2025
  • Thumbnail for Nuclear submarine
    an American S5W reactor, provided to Britain under the 1958 US-UK Mutual Defence Agreement. The hull and combat systems of Dreadnought were of British...
    47 KB (4,907 words) - 17:11, 27 May 2025
  • Thumbnail for History of the Teller–Ulam design
    nuclear designs with the United Kingdom, which led to the 1958 US-UK Mutual Defence Agreement. The People's Republic of China detonated its first device using...
    58 KB (6,780 words) - 21:01, 24 May 2025
  • Thumbnail for Lewis Strauss
    hearings resulted in the 1958 USUK Mutual Defence Agreement coming into place. As AEC chairman, Strauss was informed regarding U.S. intelligence findings on...
    123 KB (14,124 words) - 05:49, 26 May 2025
  • September 1958 decision to adopt the US warhead for British use, following the 1958 US-UK Mutual Defence Agreement. It entered service in 1961, remaining...
    6 KB (686 words) - 15:27, 28 July 2024
  • The UKUS extradition treaty of 2003 was implemented by the UK in the Extradition Act 2003 and came into force in April 2007 following its ratification...
    23 KB (2,736 words) - 10:33, 9 February 2025
  • Thumbnail for Polaris (UK nuclear programme)
    reactor technology was incorporated in the 1958 USUK Mutual Defence Agreement, which allowed the UK to acquire nuclear weapons systems from the United...
    84 KB (11,543 words) - 15:11, 26 May 2025
  • Thumbnail for Attack-class submarine
    the US and UK will share nuclear propulsion technology with Australia, as they have with each other since 1958 under the 1958 USUK Mutual Defence Agreement...
    75 KB (6,927 words) - 16:54, 13 May 2025
  • Thumbnail for Sputnik crisis
    America will be successful". The crisis contributed to the USUK Mutual Defence Agreement of 1958. The phrase "Sputnik moment" entered the English language...
    35 KB (3,801 words) - 22:13, 18 May 2025
  • Thumbnail for Californium
    supplied by the United Kingdom to the United States under the 1958 USUK Mutual Defence Agreement was used for making californium. The Atomic Energy Commission...
    44 KB (4,620 words) - 16:17, 25 May 2025
  • (brother-in-law) Career 1945 Bromley by-election Macmillan government USUK Mutual Defence Agreement 1959 United Kingdom general election Wind of Change speech Night...
    7 KB (537 words) - 15:40, 23 April 2025
  • Thumbnail for WE.177
    from the United States as part of the 1958 USUK Mutual Defence Agreement; that permitted the US to obtain UK weapons-grade plutonium, in exchange for enriched...
    35 KB (3,689 words) - 15:56, 10 March 2025
  • Thumbnail for UKUSA Agreement
    rules for intelligence sharing, the agreement formalized and cemented the "Special Relationship" between the UK and the US. Due to its status as a secret treaty...
    55 KB (4,071 words) - 22:53, 16 April 2025