North Korea on Thursday unveiled a new facility believed to produce fuel for nuclear weapons, with leader Kim Jong Un pledging to expand the country's nuclear forces “at an exponential rate.” State media…

North Korean leader Kim Jong-un has visited a newly launched nuclear material production facility, vowing to "exponentially" strengthen the country...

Of the planned increase, North Korean leader Kim Jong Un said: "This signifies an amazing, successful change that is beyond rhetorical description, a historic event that has set…