China's stockpile of nuclear weapons is the world's third-largest, estimated at 620 nuclear warheads as of 2026. China was the fifth country to develop nuclear weapons, conducting its first test in 1964 and its first full-scale thermonuclear test in 1967.
China's stockpile of nuclear weapons is the world's third-largest, estimated at 620 nuclear warheads as of 2026. China was the fifth country to develop nuclear weapons, conducting its first test in 1964 and its first full-scale thermonuclear test in 1967.
Source: Wikipedia "Nuclear weapons of China" · CC BY-SA 4.0
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