Nuclear Non-Proliferation Treaty
The question
To ask the Secretary of State for Defence, with reference to the 2025 Strategic Defence Review, what progress he has made in seeking to renew the arms control, disarmament, and non‑proliferation regime, centred on the Nuclear Non‑Proliferation Treaty, as outlined in Recommendation 31.
Answered by Ministry of Defence
The Government believes the long-term goal of a world without nuclear weapons is best achieved through a multilateral, step-by-step approach under the Treaty on the Non-Proliferation of Nuclear Weapons (NPT). The Strategic Defence Review made clear that the international security environment has become more challenging, and the UK's approach to arms control, disarmament and non-proliferation reflects that reality.
Since the Strategic Defence Review, the Ministry of Defence has continued to strengthen and renew the global arms control, disarmament and non-proliferation regime through active participation in the 2026 NPT Review Conference; support for the Comprehensive Nuclear-Test-Ban Treaty and its verification regime; actively supporting the P5 process, which under UK leadership saw several constructive dialogues in 2025/26; and renewed international cooperation on transparency, verification and irreversibility, including through expert dialogues and technical exercises.
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