This book mainly focuses on the Cyprus question as a pivotal issue of Turkish foreign policy and Turkish-American relations. The Cyprus question was a constant factor in US-Turkish relations in the past and it still conditions the Turkish-American alliance, which is an important element of the present international relations. The period covered in this book is from 1960-1975. After experiencing a perfect honeymoon period in the 1950s, the durability, strength and cohesion of the US-Turkish alliance were tested by severe problems between 1960 and 1975. At the core of all the problems was there the Cyprus question, affecting the general tendency of the relationship between the two countries and the attitude of policy-makers of both states. Finally, the period covering from 1974 onward up to the present is generally studied with particular emphasis on Turkish-American relations and a supplementary chapter at the end of the book gives the latest developments from the Turkish point of view.