In this wide-ranging talk, U.S. defense expert Elbridge Colby discusses the changing nature of American power with Carnegie Council President Joel Rosenthal. As the lead architect of the 2018 National Defense Strategy, Colby details the threats and challenges that the United States faces, most notably from Asia, and how it can adapt its geopolitical and military capabilities to meet its goals. How can the U.S. counter China's rising power and its pursuit of regional hegemony? Does Russia's invasion of Ukraine change how America pursues its policies? For more, please go to carnegiecouncil.org.