In the wake of World War II, the United States helped to build a set of new international institutions designed to bring peace, stability, and cooperation to the post-war world. They included the United Nations, the World Bank, and the World Health Organization. Yet, many Americans have been suspicious of these institutions. And many American politicians have treated them with hostility, none more extravagantly than Donald Trump. This month, historian Joe Parrott examines this history and exploress what the future of American diplomacy might hold.