In 2017, the world watched as President Donald Trump and North Korean leader Kim Jong Un traded personal insults and escalating threats of nuclear war amid unprecedented shows of military force. Former Pentagon insider and Korean security expert Van Jackson traces the origins of the first American nuclear crisis in the post-Cold War era, and explains the fragile, highly unpredictable way that it ended. Hear an excerpt from his book, On the Brink: Trump, Kim, and the Threat of Nuclear War, now available in audiobook and available from all major retailers. For more information, visit cambridge.org/audiobooks.