Rising nuclear proliferation risks in East Asia amid US strategic drift: systemic drivers of South Korea and Japan's deterrent calculus
Original framing: “Will South Korea or Japan develop a nuclear deterrent of their own?” — South China Morning Post
The debate omits Japan’s historical nuclear latency (plutonium stockpiles from civilian programs), South Korea’s covert uranium enrichment programs, and the role of indigenous anti-nuclear movements in both countries. It ignores the hypocrisy of nuclear-armed states demanding non-proliferation from others while failing to disarm, as well as the historical parallels to 1970s-80s proliferation crises in Europe. Marginalised voices—Okinawan anti-base activists, Korean peace movements, and hibakusha (atomic bomb survivors)—are entirely absent.
Medium structural omission detected in mainstream coverage.
The narrative is produced by Western and East Asian security elites (IAEA, SCMP, think tanks) for policymakers and defense communities, serving the interests of nuclear status quo powers that benefit from non-proliferation regimes. The framing obscures how US nuclear umbrella commitments are now seen as unreliable by allies, while simultaneously legitimizing US-led sanctions against potential proliferators like Iran. The debate serves to justify further US military dominance in Asia under the guise of 'stability.'
The current crisis echoes the 1970s-80s European nuclear dilemma, where allies under the US umbrella faced Soviet pressure and considered independent arsenals. Japan’s 1960s secret nuclear research (e.g., the 'Three Non-Nuclear Principles' loopholes) and South Korea’s 1970s clandestine uranium enrichment program reveal a pattern of latent proliferation. The US’s own nuclear sharing agreements (e.g., NATO’s dual-key systems) set a precedent that allies now seek to emulate.
The East Asian nuclear dilemma is not merely a security problem but a crisis of trust in the post-Cold War order, where US extended deterrence is increasingly seen as unreliable by allies who now confront a multipolar nuclear landscape.