Hard Power · National Security · Nuclear Deterrence

Stockpile Stewardship & Sustainment

The capacity to keep the deterrent credible over decades: stewardship of the stockpile, the science and skills behind it, and the programme management of its renewal.

Developments: 631939–45 to February 2026
With medium: 8712 very high
Nations: 15
Unverified: 291 verified

Timeline

Every development graded as belonging to this capability, wherever it is kept: very high (about it), high (directly and substantially changes it), medium (a direct, material effect on it). A model gave the grades, reading each entry against the framework. A structured starting point, not a cited record. An entry marked unverified has not been checked against a source; tiers are assigned by a model and are not comparable between nation and capability timelines.

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