Is NATO Ready to Cross the Rubicon on Cyber Defence? by Matthijs Veenendaal, Kadri Kaska and Pascal Brangetto looks at NATO and national military cyber defence policies beyond the Warsaw Summit and lays tracks for the future. It offers insight into how Allies could best deploy cyber capabilities in cooperative defence that goes beyond the current NATO policy on cyber defence. Cyber defence is expected to take centre stage at the Warsaw Summit in July where cyberspace will be declared an operational domain along space, air, sea and land. The Wales Summit of 2014 reconfirmed the Alliance’s commitment to cyber defence and the applicability of collective defence to cyber space, including the possibility of an Article 5 response to cyber incidents the effects of which are comparable to an armed attack.