The Treaty on the Non-Proliferation of Nuclear Weapons — the cornerstone international agreement aimed at preventing the spread of nuclear weapons, promoting disarmament, and facilitating peaceful uses of nuclear energy.
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Updated March 26, 2026Foreign Policy & War
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The expiration of the last US-Russia nuclear arms control treaty ends over five decades of binding limits on the world's two largest nuclear arsenals. No replacement is under negotiation. The loss of …
New START expired on February 5, 2026, ending the last legally binding limits on US and Russian nuclear arsenals — 1,550 deployed strategic …
This marks the first time since the early 1970s that there are no binding nuclear arms control agreements between the two nations that …
Trump directed the Pentagon to match other nations' nuclear testing programs, breaking a moratorium that has held since 1992 and threatening to collapse the global norm against nuclear testing that …
On October 30, 2025, Trump publicly directed the Pentagon to resume nuclear weapons testing, stating the US should match 'other countries' …
The US has not conducted a live nuclear weapons test since 1992, when President George H.W. Bush imposed a unilateral testing moratorium. No …