US Leads Record Rise in Spending on Nuclear Arsenals, Campaign Group Says

Why It Matters

The surge in nuclear spending signals escalating arms competition and strains non‑proliferation diplomacy, raising fiscal pressures for defense budgets worldwide. Policymakers will need to balance security priorities with growing calls for nuclear disarmament.

Key Takeaways

• US nuclear spending hit $69.2 billion, 22% rise YoY.
• Global nuclear arms spend reached $119 billion, up 19% in 2025.
• Britain surpassed Russia, becoming third‑largest nuclear spender.
• China’s nuclear budget grew 7% to $13.5 billion.
• ICAN warns spending surge threatens non‑proliferation goals.

Pulse Analysis

The latest ICAN report shows that nuclear‑armed states collectively poured $119 billion into their arsenals in 2025, a 19% jump from the previous year and the highest level since the group began tracking expenditures in 2020. The United States alone accounted for $69.2 billion, a 22% increase that outstrips the combined spending of the other eight powers. China followed with a 7% rise to $13.5 billion, while Britain’s budget surged 17% to $12.6 billion, pushing it ahead of Russia for the first time. These figures underscore a broad‑based escalation rather than isolated national spikes.

From a strategic standpoint, the spending surge reflects heightened security concerns across multiple regions. In Washington, the budget boost dovetails with a broader defense buildup aimed at modernizing the triad and countering perceived threats from near‑peer competitors. Europe’s reliance on British and French nuclear capabilities adds another layer of pressure, especially as Moscow’s budget, though smaller, continues to grow modestly. The fiscal commitment also strains national budgets, forcing governments to weigh nuclear modernization against competing priorities such as cyber defense, climate resilience, and social programs, thereby reshaping defense allocation debates.

ICAN’s warning that the record outlays jeopardize disarmament goals injects renewed urgency into diplomatic circles. The campaign’s data provides civil‑society advocates with concrete leverage to press for transparency, confidence‑building measures, and renewed negotiations under the Treaty on the Non‑Proliferation of Nuclear Weapons. For investors and industry analysts, the trend signals potential growth in the defense supply chain, from missile‑guidance systems to nuclear‑compatible platforms, while also exposing companies to reputational risk amid growing ESG scrutiny. Policymakers will need to balance the security rationale for higher spending with the long‑term economic and political costs of an expanding nuclear stockpile.