World · 7 February 2026
US accuses China of secret nuclear test in 2020
A high-ranking US official has accused China of secretly carrying out an underground nuclear test in 2020. Washington also claims that both Beijing and Moscow have engaged in undisclosed nuclear activity, weakening the informal global ban observed by major powers for decades. US officials warn this behaviour could force a response in kind, raising the prospect of heightened nuclear tensions and indicating a possible change in America’s defence posture amid growing strategic rivalry.
Reported by washingtonpost.com · How we write briefs