Should the United States be concerned with affairs among other countries or should it remain silent on the issues facing other nations? This question has challenged American leaders since the country's inception. Internationalism explores the argument over whether the United States should be more or less involved in the affairs of other countries. By discussing the major events, issues, and countries that have received help from the United States in the past, this book provides a thorough history of U.S. foreign policy. Informative sidebars and primary resource documents supplement the text with information on Boris Yeltsin, the Yalta Conference, the Berlin Wall, NATO, and much more.