Question follow-through · 94528

Nuclear Weapons: Research

To ask the Secretary of State for Defence, whether the US Los Alamos National nuclear laboratory and Lawrence Livermore national laboratory have played a role in the research, design or development of the British Astraea nuclear warhead.

answeredMinistry of Defence

About this written question

A written question asks a government minister for information in writing. Parliament publishes the question and any answer.

Answering body
Ministry of Defence
Tabled
25 Nov 2025
Target answer date
1 Dec 2025
Answer
1 Dec 2025 · 6 calendar days after tabling

Elapsed calendar days describe the record timeline, not whether Parliament considers an answer on time.

More questions by this MP on Defence and foreign affairs

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Recorded timeline

  1. 25 Nov 2025

    Question tabled

    To ask the Secretary of State for Defence, whether the US Los Alamos National nuclear laboratory and Lawrence Livermore national laboratory have played a role in the research, design or development of the British Astraea nuclear warhead.

  2. 1 Dec 2025

    Target answer date

    Date supplied by the official written-questions record.

  3. 1 Dec 2025

    Answer published

    We are working with our U.S. counterparts in the U.S. Navy and National Nuclear Security Administration to ensure the UK replacement warhead remains compatible with the Trident missile. The Astraea warhead will be designed, developed, and manufactured in ...

Open official record

Official data retrieved 28 Sept 2026.

Later records

Possible follow-up questions

Strong links require the same MP, department and exact heading. Other same-department questions are shown as unreviewed candidates, not as confirmed follow-ups. No debate link is asserted unless a stable source relationship exists.

Unreviewed candidateSame MP and department; topic relationship is unreviewed

Iran: Military Bases

23 Mar 2026 · To ask the Secretary of State for Defence, if he will bring forward a voteable motion on the use of UK military bases in connection with operations related to the escalation in the Middle East.

Unreviewed candidateSame MP and department; topic relationship is unreviewed

Iran: Armed Conflict

25 Mar 2026 · To ask the Secretary of State for Defence, if he will publish any legal advice on UK participation in military operations connected to the conflict in the Middle East.

Unreviewed candidateSame MP and department; topic relationship is unreviewed

Defence Nuclear Enterprise

7 Sept 2026 · To ask the Secretary of State for Defence, When the Defence Nuclear Enterprise will be established and whether he plans to publish membership list when established.

Unreviewed candidateSame MP and department; topic relationship is unreviewed

Written question 30098

15 Sept 2026 · To ask the Secretary of State for Defence, what discussions he has had with the Leader of the House on the timetable for tabling a motion to establish a committee on the Defence Nuclear Enterprise.