Pakistan, Aug. 20 -- US President Donald Trump has claimed that North Korea possesses 57 nuclear weapons. Trump described the weapons as "very powerful" during remarks about his relationship with Kim Jong Un. However, he did not explain the source of the figure. US officials have not publicly confirmed the number through a recent intelligence assessment.

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Most previous estimates have placed North Korea's nuclear stockpile at several dozen warheads. Different assessments use varying methods to estimate the size of Pyongyang's arsenal. Therefore, Trump's figure represents a more specific public claim than previous estimates. Such detailed information about North Korea's nuclear capabilities...