South Korea aims to launch its first domestically built nuclear-powered attack submarine in the mid-2030s [1].
The move represents a significant escalation in the Republic of Korea's naval capabilities. By developing nuclear propulsion, the country seeks to extend the endurance and stealth of its underwater fleet, which could reshape the security landscape in Asia [4].
Defense Minister Ahn Gyu-back said that the vessels will be fueled by low-enriched uranium [1]. This choice of fuel is central to the domestic production plan, allowing the navy to operate submarines that can remain submerged for much longer periods than conventional diesel-electric models.
While the initial launch is targeted for the mid-2030s [1], the vessels will not be immediately operational. The ministry expects the deployment of the submarine to the navy in the late-2030s [2].
The project involves the complete domestic development of the attack submarines. This strategy reduces reliance on foreign technology and ensures that the South Korean navy maintains full control over its strategic underwater assets.
Regional observers suggest the development could trigger an underwater arms race [4]. The introduction of nuclear-powered vessels would alter the strategic balance of power, particularly regarding the monitoring and deterrence of neighboring threats.
“South Korea aims to launch its first domestically built nuclear-powered attack submarine in the mid-2030s.”
The transition to nuclear-powered submarines allows South Korea to shift from a coastal defense posture to a more robust blue-water navy. Unlike conventional submarines that must surface or snorkel frequently to recharge batteries, nuclear vessels can stay submerged indefinitely, providing a critical strategic advantage in surveillance and deterrence within the Asia-Pacific region.
