Sweden Reconsiders Nuclear Deterrence Amidst Evolving Threat
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Sweden Reconsiders Nuclear Deterrence Amidst Evolving Threat
- Sweden, a long-time advocate for nuclear disarmament, is reportedly re-evaluating its stance on nuclear-armed alliances due to a growing Russian threat.
- This shift comes after Sweden joined NATO in 2024, ending decades of neutrality, and follows its historical abandonment of a domestic nuclear weapons program in 1972.
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Sweden, historically a strong voice for nuclear disarmament, is reportedly reconsidering its approach to nuclear deterrence in light of an increased threat perception from Russia. This potential shift follows Sweden’s decision to join NATO in 2024, a move that ended decades of military neutrality.
The country previously maintained a clandestine nuclear weapons program from 1945 to 1972, operating under the guise of civilian defense research. A key facility in this program was the Marviken power plant, which began construction in 1959. Marviken was initially intended to be a heavy-water reactor capable of producing both electricity and plutonium, with some plans aiming for it to supply enough nuclear fuel for an arsenal of 100 weapons. However, the project faced significant technical and design challenges, and the reactor was never loaded with fuel, ultimately being decommissioned in 1970.
While Sweden has no current political or public support for developing its own nuclear weapons, or for a Nordic nuclear deterrent, there is an openness to strengthening the European dimension of the French and British nuclear umbrella. A public opinion survey conducted in January 2026 indicated that 41% of respondents supported the deployment of US nuclear weapons in Sweden, though 55% opposed it. This ongoing debate reflects a broader discussion within Europe about strengthening security independence within NATO, especially given uncertainties surrounding long-term US commitments and ongoing geopolitical tensions.