The European Network and Information Security Agency (ENISA) and the U.S. Department of Homeland Security will be conducting their first ever joint EU-US cyber security exercise. Cyber Atlantic 2011 will be a day-long table-top exercise in which EU and US officials will simulate a cyber-attack on critical infrastructure and explore how the two bodies would react and work together in response to such a crisis. The simulation will be attended by more than 20 EU Member States, of which 16 will play an active role.
Source: https://threatpost.com/first-ever-joint-eu-us-cyber-war-game-starts-110311/75843/