What makes North Korea's Kim Jong Un tick?

To influence Kim's behavior, we must ask: What is his particular vantage point?

Kim Jong Un is a “smart cookie,” President Donald Trump said recently of North Korea’s leader.

“He’s 27 years old,” Trump mused. “His father dies, [he] took over a regime. So say what you want but that is not easy.”

Kim, who has assassinated his internal rivals using anti-aircraft guns and chemical weapons, seeks to develop a nuclear missile that can reach the United States. These actions may provoke a “major, major conflict” with the U.S., Trump has said: “I hope