“In a red brick building on a 19th-century Russian czarist military compound in Tallinn, Estonia, a team of cyber experts is analyzing the hacking of the Democratic National Committee and how a Western democracy can legally respond.
Inside, the building is cutting-edge high-tech. These military officers, lawyers and cyber techies are part of NATO’s Cooperative Cyber Defence Centre of Excellence, carrying out research, training and exercises. One of their biggest challenges: When it comes to cyber — so far — there is no agreed-upon international law of war.”
Source: NATO cyberwar challenge: Establish rules of engagement – CNNPolitics.com