European Defence Agency | 120,147 followers on LinkedIn. The European Defence Agency (EDA) is the hub for #EUdefence cooperation | An Agency of the #EuropeanUnion. | The European Defence Agency is composed of all 27 Member States of the European Union. Created in 2004 to support and facilitate cross-border defence cooperation, EDA is the European Union agency where Member States willing to develop their defence capabilities collaboratively can do so. EDA’s expertise and activities cover the whole spectrum of cooperation: from harmonising requirements to delivering operational capabilities; from research & technology (R&T) and innovation to developing technology demonstrators and/or procurement; from training and exercises to support to CSDP operations.