A newly released study by a medical team associated with China’s People’s Liberation Army (PLA) Rocket Force has advised Chinese municipalities to actively prepare for potential nuclear attacks, explicitly identifying Japan as a primary source of geopolitical concern. Published in the peer-reviewed Chinese Journal of Radiological Health, the paper outlines the strategic and medical contingencies Beijing must establish to counter localized nuclear threats. While the researchers assess the probability of a full-scale global nuclear conflict as low, they assert that regional flashpoints or non-state actors could still initiate isolated strikes on major metropolitan centers.
The publication of this military assessment highlights the deepening security anxieties within China's defense establishment regarding its East Asian neighbors. By framing Japan's evolving defense policies as a direct threat to regional stability, the PLA Rocket Force researchers are signaling a shift in how Beijing evaluates nuclear risks. The study urges local governments to transition from theoretical planning to active, practical defense measures, emphasizing that the medical and social consequences of even a low-yield detonation would severely test the nation's existing emergency frameworks.
Regional Friction and the Focus on Tokyo
The PLA Rocket Force study places significant emphasis on Tokyo's defense posture, characterizing Japan's current policy trajectory as a "major danger signal" to global security. A primary point of contention raised by the researchers is Japan's ongoing refusal to accede to the Treaty on the Prohibition of Nuclear Weapons, a legally binding international agreement banning nuclear arms that was adopted in 2017. The authors argue that Tokyo's exclusion from this treaty, combined with domestic political debates, indicates a potential departure from its post-war pacifist constraints.
the Chinese military researchers allege that the Japanese government is actively contemplating revisions to its historic "three non-nuclear principles." Established in the late 1960s, these principles commit Japan to not possessing, producing, or permitting the introduction of nuclear weapons onto its territory. According to the study, "Japan has still not acceded to the Treaty on the Prohibition of Nuclear Weapons, and the current Japanese government is even openly considering revising the principle of ‘non-introduction of nuclear weapons’ within its ‘three non-nuclear principles’, sending a major danger signal to the international community."
Secret Plutonium and Remilitarisation Claims
This academic warning aligns with broader, state-sanctioned rhetoric from Beijing regarding Japan's technological capabilities. The PLA study references an official Chinese government report released in January, which accused Tokyo of harboring covert nuclear ambitions. That earlier document alleged that Japan "may already have produced weapons-grade plutonium in secret" and possesses the necessary "technological and economic capabilities to achieve nuclear armament in a short period of time."
Beijing's defense analysts have long pointed to Japan's highly advanced civilian nuclear sector as a dual-use risk. The January report highlighted that Japan has "established a comprehensive nuclear fuel cycle system and possesses robust nuclear industrial capabilities," which could theoretically be repurposed for military use. By linking these industrial capabilities to what Beijing describes as Tokyo's ongoing "remilitarisation," the PLA Rocket Force study seeks to justify a more defensive and prepared posture for Chinese urban centers.
Modelling a Tactical Nuclear Strike
To evaluate the practical demands of a nuclear emergency, the researchers modeled a hypothetical scenario in which a major Chinese city is targeted with a single, low-yield tactical nuclear weapon. Rather than a massive exchange between superpowers, this simulation focused on a localized strike carried out by a smaller state or a well-funded terrorist organization. The authors noted that such an attack, driven by intense geopolitical or religious conflicts, represents a more plausible modern threat than a global thermonuclear exchange.
The researchers drew heavily on historical data from the 1945 atomic bombing of Hiroshima, alongside contemporary global simulations, to project the immediate aftermath of a low-yield detonation. The model identified a cascade of critical challenges for first responders and medical personnel, including extreme radiation hazards, widespread physical destruction, and severe social disorder. The study emphasizes that the resulting casualties would present highly complex, multi-trauma injuries—combining severe burns, blast impact wounds, and acute radiation sickness—which differ fundamentally from the localized contamination typical of a civilian nuclear power plant accident.
Beijing’s Emergency Infrastructure and Combat Readiness
In response to these projected challenges, the study calls for a substantial expansion of China's existing nuclear emergency infrastructure. Beijing has already established a specialized emergency rescue network consisting of more than 30 dedicated bases designed to treat casualties from nuclear and radiological incidents. However, the PLA Rocket Force researchers argue that this network must be reinforced with greater treatment capacity, enhanced medical resources, and highly specialized training for local healthcare workers.
The authors recommend that municipal authorities across China stockpile critical medical and protective supplies, including specialized antibiotics and radiation-protection equipment. Crucially, the study advises that these stockpiles be maintained in a constant state of "combat readiness" to ensure rapid deployment. Beyond physical supplies, the researchers emphasize the necessity of public education campaigns focusing on radiation safety, evacuation protocols, and basic first aid, arguing that an informed populace is vital to preventing mass panic and irrational behavior during a crisis.
Global Commitments and Regional Realities
The PLA study's urgent tone stands in contrast to high-level diplomatic declarations regarding nuclear non-proliferation. In January 2022, the five permanent members of the United Nations Security Council (the P5)—China, the United States, Russia, Great Britain, and France—issued a rare joint statement declaring that "a nuclear war cannot be won and must never be fought." Despite this consensus among major powers, the PLA researchers warn that regional instability and asymmetric threats bypass these traditional deterrence frameworks.
The study concludes with a direct warning that international treaties cannot guarantee absolute security against non-state actors or highly motivated regional adversaries. "Once certain countries or terrorist groups take such a risk, the possibility that Chinese cities could suffer a nuclear terrorist attack cannot be ruled out," the authors write. Urging Chinese policymakers and local administrators to "prepare for a rainy day," the report frames nuclear preparedness not as an act of aggression, but as an indispensable component of national resilience.