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Nuclear Submarine Race Spreads Beyond Nuclear Powers as Australia, Brazil and South ...
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Fusion42 · 13 September 2026 · Fusion42 review
Non-nuclear powers including South Korea, Australia, Brazil, and Japan are pursuing nuclear-powered submarines (SSNs), expanding a capability once exclusive to nuclear-weapon states and raising non-proliferation concerns. These submarines offer strategic naval advantages such as extended submerged operation, enhancing deterrence especially amid regional threats in the Indo-Pacific.
This Wire brief sits within Fusion42's coverage of Defense Tech.
◆ ◆ The Wire takeaway
You should prepare for new competition and regulatory complexities as non-nuclear states expand naval nuclear propulsion; regulatory approvals will shape market access for defence tech suppliers in the Indo-Pacific.
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1 source · 13 Sep 2026
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