An investigation by CNN has uncovered extensive Chinese plans to significantly expand its nuclear weapons programme, pointing to large-scale developments in weapons production infrastructure, particularly in Sichuan province.
According to the report, the expansion became evident after three villagers in Sichuan questioned local authorities in 2022 about land seizures and forced evacuations. They were told only that the matter was a “state secret”. More than three years later, satellite imagery shows their village completely demolished and replaced with new facilities supporting key nuclear weapons production sites.
Satellite Evidence and Strategic Expansion
The developments observed in Sichuan, supported by satellite imagery and analysis of dozens of Chinese government documents, align with recent claims by the administration of former US President Donald Trump that Beijing is undertaking its most significant nuclear modernisation effort in decades.
CNN reported that the scale and nature of changes in the region indicate accelerated nuclear weapons development by the Chinese military. Among the most notable additions is a large dome-shaped structure, resembling a capsule, constructed near the Tongjiang River within less than five years. The facility appears to still be undergoing equipment installation, suggesting it may not yet be operational.
Further analysis revealed major upgrades at a site known as “906”, including the construction of a steel containment dome designed for radiation monitoring, alongside supporting infrastructure such as pipelines and specialised equipment intended to manage highly radioactive materials including uranium and plutonium.
Historical Context and Intelligence Assessments
When US reconnaissance satellites first captured images of the Zitong complex in 1971, American intelligence classified the sites as a turning point in China’s nuclear trajectory. Declassified documents concluded that these developments positioned Beijing to become the world’s third-largest producer of nuclear warheads, a projection that materialised around 2020 when China’s stockpile surpassed that of France.
In February, US official Thomas DiNanno accused China of violating restrictions on explosive nuclear testing, a claim strongly denied by Beijing. US intelligence assessments also suggest that China has been testing a new generation of nuclear warheads.
Responding to these allegations, Chinese Defence Ministry spokesperson Jiang Bin stated that such claims distort facts and misrepresent China’s position. He reiterated that China adheres to a defensive nuclear strategy and maintains a policy of not initiating nuclear weapons use.
Structural Overhaul and Research Expansion
CNN noted that the unconventional design of some facilities, including the dome near the Zitong network, lends credibility to claims that China is undertaking a comprehensive modernisation of its nuclear programme.
Rene Babiarz, Vice President of analysis and operations at AllSource Analysis, who reviewed the satellite imagery, stated that new processes or materials may be being introduced at these sites. He emphasised that the extent of on-the-ground changes is significant.
The investigation also highlighted a large-scale transformation of research institutions located approximately 40 miles southwest of the Zitong network. This area, known as “Science City”, functions as the central hub of China’s nuclear weapons programme.
Satellite imagery shows that more than 600 buildings were demolished in 2022 alone to make way for new facilities across a network of over a dozen research institutes affiliated with China’s primary nuclear development body.
Strategic Doctrine and Global Implications
The report indicates that major structural changes in the Zitong region began in 2021, shortly after Chinese President Xi Jinping publicly instructed military leadership to accelerate the development of advanced strategic deterrence capabilities.
In the event of a military confrontation, particularly a potential invasion of Taiwan, China’s expanding nuclear arsenal is expected to serve as a deterrent against Western intervention. These capabilities also align with Beijing’s broader vision of strengthening its global diplomatic influence.
Tong Zhao, a senior fellow at the Carnegie Endowment for International Peace, stated that Chinese leadership appears to believe that building and demonstrating strategic capabilities, including nuclear weapons, can exert psychological pressure on Western nations.
Risk of a New Nuclear Arms Race
Experts cited in the report warn that China’s rapid and largely unconstrained nuclear expansion could trigger a new global arms race, potentially more complex than that of the Cold War, as Beijing emerges as a third major nuclear power.
In such a scenario, analysts argue that the sheer number of warheads becomes less significant beyond a certain threshold. Instead, the focus shifts to capability, deployment strategy, and intended use.
The report further notes that China’s expanding infrastructure, combined with President Xi’s tightening control over the military, including recent purges of senior generals, may provide Beijing with a strategic advantage in any future arms race. This dynamic could reduce China’s incentive to engage in concessions during negotiations.
Experts also suggest that the ongoing war involving the United States, Israel, and Iran may have reinforced China’s determination to accelerate its nuclear weapons programme.
