This edited volume analyzes recent key developments in EU border management. In light of the
refugee crises in the Mediterranean and the responses on the part of EU member states this
volume presents an in-depth reflection on European border practices and their political social
and economic consequences. Approaching borders as concepts in flux the authors identify three
main trends: the rise of security technologies such as the EUROSUR system the continued
externalization of EU security governance such as border mission training in third states and
the unfolding dynamics of accountability. The contributions show that internal security
cooperation in Europe is far from consolidated since both political oversight mechanisms and
the definition of borders remain in flux. This edited volume makes a timely and
interdisciplinary contribution to the ongoing academic and political debate on the future of
open borders and legitimate security governance in Europe. It offers a valuableresource for
scholars in the fields of international security and migration studies as well as for
practitioners dealing with border management mechanisms.