This book provides a comprehensive review of the transatlantic relationship between the United States and Europe, from the 1989 fall of the Berlin Wall to the Trump administration. It highlights the primary factors that test the U.S-Europe relationship. America and Europe Adrift highlights the background of the German unification and the reaffirmation of NATO as the framework of U.S. presence in Europe after the end of the Cold War; the NATO enlargement; the Transatlantic Rift in the context of the Iraq War; the economic aspects of transatlantic relations, specifically the rise of Germany's weight in international affairs as a result of the European Monetary Union; and the gradual retrenchment of U.S. power. It focuses on the enduring factors that threaten the transatlantic relationship during the 21st century while also suggesting how that relationship will likely survive: through the United States' continued provision of indispensable security to the rest of the Western world. This book is an essential resource for students of transatlantic relations; graduates in international politics and international history, security studies, and strategic studies; and foreign policy practitioners.