After years of failed attempts by the United States and others, is U.S. President Donald Trump the man who can strip North Korea of its nuclear weapons and bring lasting peace to the Korean Peninsula?

Trump remains ever confident that he is the right man for the job, but experts say North Korean leader Kim Jong Un is not about to part with his "treasured nuclear sword" — at least not any time soon.

"Kim Jong Un would no doubt take a huge hit inside the regime if he gave up the nuclear program," said Ken Gause, a North Korean expert and director of the International Affairs Group at the Center for Strategic Studies, a division of the Center for Naval Analyses in Washington.