This paper examines the importance and specificities of the common European security and defence policy. The realization of the common European security requires the establishment of a joint European defence. The national security and defence strategies of EU member states are an expression of a concrete implementation of a pan-European policy vision in this area, refracted through the national features of each country. The common view and purpose of the different countries presuppose cooperation and joint action in the fight against international terrorism, and by virtue of the tasks they perform, intelligence agencies are called upon to play a leading role in this fight.