The first book to tell the full story of American isolationism, from the founding era through the Trump presidency. In his Farewell Address of 1796, President George Washington admonished the young nation 'to steer clear of permanent alliances with any portion of the foreign world.' Isolationism thereafter became one of the most influential political trends in American history. From the founding era until the Japanese attack on Pearl Harbor, the United States shunned strategic commitments abroad, making only brief detours during the Spanish-American War and World War I. Amid World War II and the Cold War, Americans abandoned isolationism; they tried to run the world rather than run away from it. But isolationism is making a comeback as Americans tire of foreign entanglement. In this definitive and magisterial analysis-the first book to tell the fascinating story of isolationism across the arc of American history-Charles Kupchan explores the enduring connection between the isolationist