Accession negotiations are underway and Turkey is preparing to become a full member of the EU. Turkey and the EU makes a scholarly contribution in the debate over Turkey's participation in the European integration process and the EU's future enlargement. It explores the recent history of ups and downs in EU-Turkish relations and looks at the prospects and challenges that Turkey's membership presents to both the EU and Turkey. The central question is how the internal economic and sociopolitical dynamics, and external orientations of Turkey, will meet the challenges of EU membership. Turkey's regional role and relations with the US are also examined.