A South Korean soldier watches a North Korean building at the truce village of Panmunjom in the demilitarised zone on April 23, 2013.  Tensions simmer along the world's last Cold War frontier after weeks of hostile threats from North Korea and its preparations for potential missile launches.   AFP PHOTO / KIM JAE-HWAN (Photo by KIM JAE-HWAN / AFP) (Photo by KIM JAE-HWAN/AFP via Getty Images)