This book analyzes the externalization of the EU's immigration and asylum practices towards non-member transit countries and the consequences of this process. Selected policy areas of externalization (border management, visa policy, readmission agreements and asylum policy) are applied to Turkey and Morocco as two main migration transit countries within two different institutional cooperation mechanisms: Turkey as an EU candidate country within the EU's enlargement policy; Morocco without membership prospect within the EU's neighborhood policy. Yildiz applies theoretical debates and critically compares the rhetoric in policy papers with practice in the field. This volume not only contributes to the issue of the external dimension of EU immigration policy by incorporating transit countries into the debate, but also expands upon our understanding of the EU's contested external governance paradigm. It will be of use to students, scholars, and policy makers in the field of European studies, migration and asylum studies, international relations, and political science.