(FILES) In a file photo taken on October 10, 2015, North Korea's leader Kim Jong-Un looks out towards Kim Il-Sung square during a mass military parade in Pyongyang. North Korea threatened on June 28, 2017 to "impose the death penalty" on the South's former president Park Geun-Hye over an alleged plot to assassinate its leader Kim Jong-Un. / AFP PHOTO / ED JONES / XGTY