South Korea Unveils Historic Plan to Build First Nuclear-Powered Submarine
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- South Korea's Ministry of National Defense announced on May 26 a "Basic Plan for the Development of the Republic of Korea Nuclear-Powered Submarine".
- The plan calls for low‑enriched uranium fuel and a long‑cycle reactor to minimize fuel replacement.
- The submarine will be designed, built, and maintained entirely within South Korea, leveraging civilian nuclear and shipbuilding expertise.
- The first nuclear‑powered submarine is slated for launch in the mid‑2030s and commissioning after the late 2030s.
- South Korea pledged to uphold non‑proliferation obligations, stating it does not possess nuclear weapons and will manage low‑enriched uranium transparently.
Why it matters: South Korea's defense industry gains a multi‑billion‑dollar program, while regional rivals must reckon with a stealthier, longer‑range undersea threat that reshapes naval deterrence and forces a strategic recalibration of naval deployments.
