In recent years the EU has been active in developing a common European immigration policy in cooperation with third countries and in building an "e;external dimension"e; of such an EU policy. The linkages between the EU's external relations and migration policies have influenced the distinct legal positions of third-country nationals (non-EU nationals). This book critically discusses whether the EU's objective of creating a common EU migration policy can be achieved against the backdrop of a highly fragmented EU framework for migration law and policy, and it argues that it is difficult to speak of one single, unitary group of third-country nationals forming the counterpart to EU citizens.