A rapidly-changing nation and a key player in the Middle East, Turkey has long been centrally important to both the United States and the European Union. A major partner both of the EU and Turkey, the US has also been the most ardent and committed supporter of closer ties between them. Yet while Turkey’s relations with the US and the EU have been intimately linked, they have not proceeded along two parallel planes. Nathalie Tocci tells the story of this dynamic triangular relationship,...