(FILES) A file photo taken on May 10, 2016 shows North Korean leader Kim Jong-Un watching a military parade and mass rally on Kim Il-Sung square 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