How the rest of the world sees the continuing capacity and relevance of U.S. leadership is at the heart of this volume. The specific question under investigation is how certain pivotal countries view U.S. power at this moment in time. Debates about U.S. primacy and decline tend to be episodic and somewhat academic in nature. And yet, the decisions our allies and adversaries may depend in part on their assessments of the trajectory of American power. Foreign assessments have real-world implications for U.S. policy. In this volume, CSIS experts analyze the views of U.S. power from 10 different strategically important countries/regions: China, Japan, Korea, Indonesia, India, the Persian Gulf, Israel, Turkey, Germany, and Russia.