Dr. Mira Rapp-Hooper is the Stephen A. Schwarzman senior fellow for Asia studies at the Council on Foreign Relations and author of the new book, "Shields of the Republic: The Triumph and Peril of America's Alliances." Matthew Waxman spoke with Mira about the history and strategic importance of American alliances, some of the constitutional issues alliances raise and what the United States should do to revitalize its alliances going forward. See acast.com/privacy for privacy and opt-out information.