D
Nuclear ForcesUnited Kingdom

Holbrook

Nuclear warheadActivePending verification
Nuclear ForcesGBR
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Fact cardConfidence · Source
System
TypeNuclear warhead
ProliferationOrigin country only
Delivery
Yield100 ktAbout 100 kt full yieldMed[1]
Delivery systemsTrident II D5 (Mk4A)Med[1]
Summary

UK Trident warhead, believed to be very similar to the U.S. W76-0; refurbished for the Mk4A aeroshell in 2023.

Draft entry. Values come from the cited public sources and are awaiting editor verification.
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Operators
United Kingdom
Sources
  1. United Kingdom nuclear weapons, 2024, Federation of American Scientists Nuclear Notebook, Bulletin of the Atomic Scientists
    Published/updated 2024-11-12 · Tier 2 · checked 2026-11-08
Change log
  • 2026-11-08 Entry created from United Kingdom nuclear weapons, 2024 (FAS Nuclear Notebook)