Kim Jong Un Threatens Nuclear Force in New Year's Message The North Korean leader made it clear his threats are no joke. In his New Year's Eve address, the leader warned the United States of the state's nuclear power. He also struck a conciliatory tone... suggesting the country may participate in the Winter Olympics in the South. “I sincerely hope the Pyeongchang Winter Olympics will be staged successfully. We are willing to take necessary measures including to dispatch our delegation." Kim Jong Un