?? China's nuclear arsenal a high-level state secret

Al Jazeera takes a look at the state of nuclear weapons in the world and the push for non-proliferation this month.

China's arsenal is a closely guarded state secret, so it's not exactly known how powerful their weapons are.

There are no official figures regarding China's nuclear arsenal. But a recent US government report estimated that China probably has around 300 nuclear warheads and no more than a hundred Inter Continental Ballistic Missiles to deliver them.

Experts say that China has the World's fourth largest nuclear arsenal.

Al Jazeera Adrian Brown reports from Beijing, China.

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