‘China ran secret nuclear test!’: America drops bombshell as US-Russia nuke arms treaty expires

The US government asserts that China has been conducting nuclear explosive tests, including those with yields in the hundreds of tons, and actively concealing these activities. This accusation, leveled by US Under Secretary of State for Arms Control and International Security Thomas Danano at the Geneva Disarmament Conference, centers on China’s use of “decoupling” – a technique designed to diminish the effectiveness of seismic monitoring, thereby masking the explosions. Specifically, a yield-producing test allegedly occurred on June 22nd, 2020.

New START Treaty & Shifting Nuclear Landscape

The expiration of the New START treaty in 2026 is a central concern. Signed in 2010, its limitations on warheads and launchers are becoming increasingly irrelevant given China’s rapid nuclear expansion – projected to exceed 1,000 warheads by 2030 – and Russia’s continued development of a vast nuclear arsenal. Danano stated, “In short, a bilateral treaty with only one nuclear power is simply inappropriate in 2026 and going forward.” He emphasized that “exactly zero Chinese nuclear weapons were covered by New Start” and that China’s arsenal currently operates with “no limits, no transparency, no declarations, and no controls.” Russia is reportedly assisting China in developing weapons-grade fissile material, further accelerating this buildup.

China’s Response & Position

China vehemently denies these accusations, characterizing them as “false narratives” intended to incite fear and confrontation. Beijing contends that the US is exaggerating the threat to justify its own nuclear expansion. China maintains a policy of “no first use” of nuclear weapons, unconditionally pledging not to use or threaten to use them against non-nuclear weapon states or nuclear weapon-free zones. They assert their nuclear forces are maintained at the “minimum level required for national security” and have no intention of engaging in an arms race.

China advocates for nuclear disarmament based on the principles of maintaining global strategic stability and ensuring the security of all nations, emphasizing “fair and reasonable, gradual and downward balanced steps.” However, China states it will not participate in nuclear disarmament negotiations at this stage, arguing its arsenal is not comparable to that of the US and Russia. They call on the US and Russia, possessing the largest nuclear stockpiles, to take primary responsibility for disarmament through “substantial reductions” that are “verifiable, irreversible and legally binding.” China expressed regret over the expiration of New START, viewing it as vital for global strategic stability, and urges the US to positively respond to Russia’s proposal to continue abiding by its core restrictions.

US Perspective & Future Arms Control

The US argues that the world has fundamentally changed, rendering bilateral treaties inadequate. Facing multiple nuclear powers necessitates a “broader and more inclusive arms framework.” President Trump previously stated any future agreement must include China, and the US intends to continue modernizing its own nuclear forces. Senator Marco Rubio warned that the US will not passively observe the expansion of nuclear forces by other nations. US officials acknowledge the flaws of New START, specifically its exclusion of third-theater range nuclear weapons and China. A meeting between US and Russian officials on February 6th acknowledged the urgency of resuming talks to prevent escalation.

Key Concepts

• Decoupling: A technique used to reduce the effectiveness of seismic monitoring, concealing nuclear explosions.
• New START Treaty: A bilateral treaty between the US and Russia, limiting strategic nuclear missiles and warheads, which expired in 2026.
• Fissile Material: Material capable of sustaining a nuclear chain reaction (e.g., uranium-235, plutonium-239).
• No First Use Policy: A pledge not to be the first to use nuclear weapons in a conflict.
• Strategic Stability: A condition where no nation feels vulnerable to a surprise attack, reducing the incentive for preemptive action.

Logical Connections

The transcript establishes a clear connection between the expiration of New START, China’s nuclear buildup, and the US’s call for a new, more inclusive arms control framework. China’s denial of US accusations and its insistence on a phased approach to disarmament are presented as contrasting perspectives. The discussion of Russia’s role in assisting China’s nuclear development further complicates the situation, highlighting the interconnectedness of global nuclear dynamics.

Data & Statistics

• China is projected to have over 1,000 nuclear warheads by 2030.
• New START treaty expired, leaving Washington and Moscow without binding nuclear limits for the first time since the Cold War.
• Zero Chinese nuclear weapons were covered by New START.

Notable Quotes

• “In short, a bilateral treaty with only one nuclear power is simply inappropriate in 2026 and going forward.” – Thomas Danano, US Under Secretary of State for Arms Control and International Security.
• “We firmly oppose this false narrative and reject the unfounded accusations from the US.” – Chinese Official, responding to US claims.
• “China has always adopted a prudent, extremely prudent, and responsible attitude on the issue of nuclear weapons.” – Chinese Official, outlining China’s nuclear policy.

Conclusion

The transcript reveals a growing tension surrounding nuclear arms control, driven by China’s rapid nuclear expansion and the expiration of the New START treaty. The US is advocating for a broader, more inclusive framework that includes China, while China maintains its position of non-participation in disarmament negotiations at this stage, emphasizing its commitment to a “no first use” policy and advocating for the US and Russia to take the lead in reducing their arsenals. The situation presents a significant challenge to global strategic stability and underscores the urgent need for renewed dialogue and cooperation to prevent further escalation.