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South Korea, Japan move toward nuclear-powered submarines
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Fusion42 · 11 October 2026 · Fusion42 review
South Korea has secured U.S. approval and begun discussions for constructing nuclear-powered submarines, while Japan is still reviewing the policy and grappling with legal, cost, and personnel challenges. Both nations consider nuclear-powered submarines critical in responding to China's expanding Pacific presence.
This Wire brief sits within Fusion42's coverage of Defense Tech.
◆ ◆ The Wire takeaway
You must act now if your defence tech startup is linked to submarine or nuclear propulsion technology in Asia-Pacific; South Korea's US-backed push opens fast-track market opportunities while Japan's delays create an entry gap.
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1 source · 7 Oct 2026
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