Peter Martin (Bloomberg News)

Peter Martin joins us to discuss his recent book, China's Civilian Army: The Making of Wolf Warrior Diplomacy. Chinese diplomacy in the past several years has become more assertive and its diplomats have used sharper language, earning them the title "wolf warriors." The book traces the roots of China's approach to diplomacy back to the communist revolution of 1949 and tells the story of how it's evolved through social upheaval, famine, capitalist reforms and China's rise to superpower status. It draws on dozens of interviews and -- for the first time -- on the memoirs of more than 100 retired Chinese diplomats.