US Alleges Covert Nuclear Testing by China
The United States has accused China of secretly conducting nuclear explosive tests in violation of international commitments. The accusation surfaced on February 6, 2026, during discussions on nuclear arms control, coinciding with the expiration of the New Strategic Arms Reduction Treaty (START) between the US and Russia.
US Secretary of State Marco Rubio emphasized the risks of a nuclear arms agreement that excludes China, asserting that such an arrangement would jeopardize the safety of the US and its allies. He pointed to China’s rapidly expanding nuclear capabilities as a growing threat.
Context and Importance of the Accusation
The New START treaty, which had limited both Russia and the US to 1,550 deployed nuclear warheads, formally expired a day before the allegations were made. The lapse of this treaty has heightened concerns about a potential nuclear arms race, as no binding framework currently exists to regulate the world’s most destructive weapons.
The US regards China’s growing nuclear stockpile as a significant factor in any future arms control discussions. Rubio noted that China’s nuclear arsenal has surged from approximately 200 warheads to over 600 since 2020, with predictions that it could exceed 1,000 by 2030.
Details of the US Allegation
Evidence of Covert Tests
Thomas DiNanno, a senior US arms control official, claimed that China had engaged in covert nuclear tests, preparing for detonations with yields in the hundreds of tons. According to DiNanno, these actions indicate a deliberate effort by China’s military to conceal nuclear activities and defy its commitment to suspend nuclear testing.
“As we sit here today, China’s entire nuclear arsenal has no limits, no transparency, no declarations, and no controls,” DiNanno stated, underscoring the challenges of verifying China’s nuclear capabilities.
China’s Strong Rejection
In response, Chinese Ambassador to the United Nations, Shen Jian, dismissed the US allegations as “false narratives and unfounded accusations.” Shen maintained that China remains committed to its pledge to suspend nuclear testing and accused the US of attempting to shift the burden of nuclear disarmament and justifying what he termed American “nuclear hegemony.”
China has resisted calls to participate in trilateral disarmament talks, emphasizing that its nuclear capabilities are not comparable to those of the US or Russia. Shen argued that the two superpowers should bear the primary responsibility for nuclear disarmament efforts.
Future of US-Russia Nuclear Arms Control
Negotiations Following the Lapse of the Treaty
With the New START treaty now expired, US and Russian negotiators have engaged in discussions about the future of nuclear arms control. Meetings in Abu Dhabi focused on the urgency of re-establishing a framework to manage nuclear arsenals responsibly.
Kremlin spokesperson Dmitry Peskov noted that both countries recognized the importance of acting responsibly and were eager to resume negotiations. “Both sides understand the importance of beginning talks as soon as possible,” he stated.
Despite calls for a new framework, Russian President Vladimir Putin’s proposal to extend New START limits informally was met with resistance from US President Donald Trump, who argued for a broader agreement that would include China.
The Broader Implications of Nuclear Arms Development
The ongoing growth of China’s nuclear arsenal has raised alarms within the US military and intelligence communities. Rubio’s statements underscore a growing concern that without engaging China in arms control discussions, the nuclear landscape may become increasingly perilous.
The US administration has emphasized that their strategy will depend on the engagement of all nuclear powers. Rubio articulated that failing to include China in future talks would leave allies vulnerable to an unpredictable nuclear environment.
Global Reactions to the Nuclear Disarmament Situation
The developments in nuclear arms discussions have garnered international attention, with many Western countries expressing anxiety over the renewed arms race. Experts argue that without a structured approach to nuclear management, the risk of escalation increases dramatically.
In contrast, some nations view the US allegations as an opportunity to push back against American dominance in global nuclear policy. Critics argue that the US must also address its own nuclear capabilities if it expects to lead disarmament efforts effectively.
The Road Ahead for Arms Control
The expiration of the New START treaty opens a new chapter in global nuclear arms management. Analysts predict that any future agreements will require significant compromises from all parties involved, further complicating negotiations.
The US and Russia have agreed to restore high-level military dialogue, which has been dormant since 2021. This dialogue may provide a basis for addressing mutual nuclear concerns while also exploring avenues to bring China into the fold.
Despite the complexities, experts continue to advocate for renewed focus on nuclear disarmament. The absence of formal treaties only exacerbates the risks associated with nuclear escalation, making it vital for the international community to engage in proactive discussions.
Final Thoughts on the Nuclear Landscape
The situation remains fluid as all parties navigate their next steps in a newly uncertain environment. The absence of the New START treaty has led to fears that even minor miscalculations could lead to catastrophic consequences.
While the immediate focus is on the accusations against China, the larger picture of global nuclear disarmament hangs precariously in the balance. The coming months will be critical in determining the future trajectory of nuclear policy and international security.