Several Turkish domestic and foreign policy issues have significant relevance for U.S. interests, and Congress plays an active role in shaping and overseeing U.S. relations with Turkey. This book provides background information on Turkey and discusses possible policy options for Members of Congress and the Obama Administration. U.S. relations with Turkey -- a long-time North Atlantic Treaty Organization (NATO) ally -- have evolved over time. Turkey's economic dynamism and geopolitical importance -- it straddles Europe, the Middle East, and Central Asia and now has the world's 17th-largest economy -- have increased its influence regionally and globally. Although Turkey still depends on the United States and other NATO allies for political and strategic support, its growing economic diversification and military self-reliance allows Turkey to exercise greater leverage with the West. These trends have helped fuel continuing Turkish political transformation led in the past decade by Prime Minister Recep Tayyip Erdogan and the Justice and Development Party (AKP), which has Islamist roots. Tens of thousands of mostly middle-class Turks joined protests in June 2013 to express dismay at what they assert to be an increasingly authoritarian leadership style from Erdogan. The protests and the government's response have raised questions for U.S. policymakers about Turkey's domestic political trajectory and economic stability. It has also raised questions about the extent and nature of Turkey's regional influence. Future domestic political developments may determine the extent to which Turkey reconciles majoritarian views favouring Turkish nationalism and Sunni Muslim values with protection of individual freedoms, minority rights (including those of Turkey's ethnic Kurdish population), rule of law, and the principle of secular governance.