The United States faces significant dangers and opportunities in the coming century. Malicious actors have harnessed new technologies such as drones, missiles, and offensive cyber weapons to threaten and, in some cases, attack America and its allies. Since the end of the Cold War, US foreign policy and national security strategy have suffered from strategic narcissism—the tendency to define complex challenges and opportunities abroad only in relation to the United States—and to underappreciate the interests, emotions, and aspirations that drive and constrain rivals, adversaries, and enemies. Former US National Security Advisor H. R. McMaster designed and delivers this 12-lecture series.