ThinkTankWeekly

Republic of Korea’s Nuclear-powered Submarine Initiative

USNI | 2026-05-27 | defense

Topics: Nuclear, United States

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English Summary

The Republic of Korea (ROK) is launching the 'Chang Bogo N Project,' aiming to acquire and operate conventional nuclear-powered submarines by the late 2030s. This initiative is underpinned by a deepened bilateral commitment with the United States, which has agreed to cooperate on technical aspects, including fuel sourcing. The primary objective is not nuclear deterrence, but rather enhancing maritime security and operational endurance to strengthen deterrence against North Korea. Strategically, this project represents a major qualitative upgrade to ROK's defense capabilities and elevates the strategic depth of the US-ROK alliance.

中文摘要

大韓民國(ROK)正啟動「常寶N計畫」(Chang Bogo N Project),旨在於 2030 年代後期取得並營運常規核動力潛水艦。此項倡議建立在與美國深化雙邊承諾的基礎之上;美國已同意在技術層面,包括燃料採購等方面提供合作。其主要目標並非核威懾,而是提升海軍安全和作戰續航力,從而強化對抗北韓的威懾能力。從戰略角度來看,此計畫代表了大韓民國國防能力的重大質化升級,並提升了美韓同盟的戰略深度。

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