At the meeting of NATO defence ministers in Brussels, NATO has declared cyberspace as its fourth operational domain, in addition to air, land and sea. According to NATO Secretary-General Jens Stoltenberg, most conflicts today have a cyber dimension; in this regard, he clarified that the decision will enable NATO to coordinate better to protect against cyberattacks, and to develop capabilities to protect countries' cyber networks -especially to be able to attribute different kinds of cyberattacks. Stoltenberg also confirmed that NATO and the European Union have agreed on the arrangements on technical measures related to cyber-defence. This decision comes as an expected follow up of an earlier NATO decision that a cyberattack on a member state can trigger collective defence by any means (as in Article 5 of NATO Treaty).