UPI News:

The recent claim by Kim Jong Un that North Korea plans to develop the world’s most powerful nuclear force may well have been more bravado than credible threat. But that doesn’t mean it can be ignored.

The best guess is that North Korea now has sufficient fissile material to build 45 to 55 nuclear weapons, three decades after beginning its program. The warheads would mostly have yields of around 10 to 20 kilotons, similar to the 15-kiloton bomb that destroyed Hiroshima in 1945.

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