Since World War II, the relationship between Turkey and the United States has been characterized by complexity and flux; there have been periods of remarkable cooperation, even when significant disagreements existed. Relations between the two countries are never merely bilateral, for the two are also linked to the North Atlantic Treaty Organization (NATO) and the European Union (EU). The relationship between those two organizations is also complicated because of differing core purposes and somewhat differing memberships. Current Turkey-U.S. diplomatic and military relations are more strained...