Professor Dr. Christian KAUNERT
, Professor Sarah LEONARD
Compared to other policy fields, the involvement of the European Union (EU) in counter-terrorism is a relatively recent development. Traditionally, European countries faced with a terrorist threat, such as the United Kingdom (UK), Italy, Spain and West Germany, addressed it largely on their own. One of the main reasons for this lack of European cooperation was the commonly held view that each European state was confronted by a distinct threat