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ROK and Japan seek nuclear-powered submarines

Filed: Jun 29, 2026 at 10:00 AM ET
Summary: South Korea and Japan pursue nuclear-powered submarines via a three-way ROKJUS plan using small modular reactors.
WHO: 19FortyFive analysis
WHAT: Proposes a pathway for South Korea and Japan to develop nuclear-powered submarines using small modular reactors under a three-way ROKJUS effort.
WHEN: Jun 29, 2026 at 9:28 AM ET
WHERE: South Korea
WHY: To strengthen allied undersea deterrence against China’s expanding navy amid concerns about diplomatic friction and industrial and labor limitations.
ℹ️ This event is analyzed using pattern arcs, velocity indicators, and source analysis in our MI Console.
🔍 8 sources analyzed

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