Story perspectives

China's Covert Nuclear Test Sparks U.S. Security Concerns

2/21/2026

Summary

Story summary

U.S. intelligence agencies say China conducted a covert explosive test in June 2020 at Lop Nur, signaling next-generation nuclear weapons, including low-yield options.
The disclosure suggests China is modernizing its nuclear forces in response to concerns about U.S. military capabilities.
Chinese officials deny the allegations and cite a nuclear testing moratorium and a no-first-use policy.
The United States seeks arms-control talks with China amid rapid expansion, complicating global security.

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Story summary

U.S. intelligence agencies say China conducted a covert explosive test in June 2020 at Lop Nur, signaling next-generation nuclear weapons, including low-yield options.
The disclosure suggests China is modernizing its nuclear forces in response to concerns about U.S. military capabilities.
Chinese officials deny the allegations and cite a nuclear testing moratorium and a no-first-use policy.
The United States seeks arms-control talks with China amid rapid expansion, complicating global security.