PAJU, SOUTH KOREA - JANUARY 06: A barbed wire fence at a military check point near the demilitarized zone (DMZ) separates South and North Korea on January 6, 2016 in Paju, South Korea. North Korea confirmed it has conducted a hydrogen bomb test after South Korea's Metrological Administration detected an 'artificial earthquake' near Punggye-ri, North Korea's main nuclear testing site on January 6, 2015. (Photo by Chung Sung-Jun/Getty Images)
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Getty Images News Chung Sung-Jun