BRUSSELS, Nov. 28 (Xinhua) -- NATO held its biggest cyber defense exercise in Estonia this week, the Alliance said in a press release Tuesday.
The 10th Cyber Coalition exercise, involves more than 700 participants from 25 Allies, as well as NATO partner countries and the European Union.
The exercise aims to test and train cyber defenders from across the Alliance in their ability to defend NATO and national networks.
The three-day exercise is managed from the NATO Cyber Range in Estonia, but the majority of the participants take part from their own work places.
In July 2016, NATO Allies agreed to recognize cyberspace as a new operational domain in which NATO must defend itself as effectively as it does in the air, on land and at sea.