US accuses China of secret nuclear testing

South China Morning PostCenter-RightEN 1 min read 100% complete by ReutersFebruary 6, 2026 at 07:52 PM

US accuses China of secret nuclear testing

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In July 2024, the United States accused China of conducting a secret nuclear test in 2020, specifically on June 22nd. The accusation was made by US Under Secretary of State Thomas DiNanno at a Disarmament Conference in Geneva. DiNanno stated that China concealed the testing by obfuscating the nuclear explosions and using decoupling methods to decrease the effectiveness of seismic monitoring. The US claims the test involved a yield-producing explosion in the hundreds of tonnes. The US is calling for a broader arms control treaty that includes China and Russia. The accusation highlights tensions between the US and China regarding nuclear arms control.

Key Entities & Roles

Key Player Opposition Context

Geneva 40% June 22, 2020 50% Donald Trump ×250% Disarmament Conference 60% Beijing 60% Chinese military 60% Russia ×270% Thomas DiNanno ×380% China ×790% United States ×690%

Keywords

nuclear testing 100% arms control 80% china 80% united states 70% nuclear weapons 60% test ban 50% disarmament 50% nuclear explosions 40%

Sentiment Analysis

Negative

Score: -0.40

Source Transparency

Source

South China Morning Post

Political Lean

Center-Right (0.50)

Far LeftCenterFar Right

Classification Confidence

90%

Geographic Perspective

China

This article was automatically classified using rule-based analysis. The political bias score ranges from -1 (far left) to +1 (far right).

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nuclear testing arms control china united states nuclear weapons test ban disarmament nuclear explosions

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