There's a recent AP article describing DDoS attacks against Wikileaks with contain the quote: "The first serious infowar is now engaged. The field of battle is WikiLeaks. You are the troops," Electronic Frontier Foundation co-founder John Perry Barlow said in a tweet reposted by WikiLeaks to its 300,000-odd followers.
These guys think this is a bit more serious then when they defended Estonia against Russian cyberattacks.
To retell a bit of history, when Estonia got attacked neither EU nor the US had a real capacity to defend it and it Estonia got defended by a diverse coalition of Western hackers.