Both Koreas race to build nuclear-powered submarines

当前进展

The topic opens with a report by the Financial Times that North and South Korea are both pursuing nuclear-powered submarines, each working toward a capability neither navy has fielded before. According to the Financial Times, the two efforts amount to a race, with Pyongyang and Seoul moving in parallel rather than in response to a single triggering event. The paper frames the rivalry as more than a passing episode: it points to a lasting shift in the naval balance in Northeast Asia, where submarines that can stay submerged far longer than conventional boats would change what each side can threaten and what it must defend against. Beyond the existence of the competition and its strategic direction, the current reporting gives no detail on the state of either programme, and timelines, costs and technical progress on both sides remain unconfirmed.

Nuclear-powered submarines use a reactor for propulsion, which allows them to remain submerged for far longer and range further than diesel-electric boats; this is a propulsion capability and is distinct from whether a submarine carries nuclear weapons. Neither North nor South Korea has previously operated such a vessel, and both are now working to acquire one, according to the Financial Times. Because the Korean peninsula sits at the meeting point of several major navies, a change in what either Korean fleet can do carries weight well beyond the two countries. The Financial Times assesses that the competition signals a durable change in the naval balance in Northeast Asia rather than a short-term episode. Details of the two programmes, including their scale and schedule, are not established in the reporting available so far.