China said on Thursday that it has conducted the "smallest number" of nuclear tests among all nuclear-weapon states and has honored its moratorium on such activities for three decades.

The statement was released as the Chinese government published a white paper on arms control, disarmament and nonproliferation, following United States President Donald Trump's accusation that the country has tested its nuclear arsenal.

Why It Matters

China is one of nine nations with nuclear weapons , with an estimated 600 warheads in its arsenal, making it the world's third-largest nuclear power behind Russia and the U.S., according to a June report by the Stockholm International Peace Research Institute.

China's nuclear weapons development has long concerned the U.S., which has warned that the Ea

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