When US President Barack Obama declared in 2009 that the North American digital infrastructure was a ‘strategic national asset’, it was the signal for the Pentagon to set up a Cyber Command at Fort Meade, Maryland. Military strategy was quick to adapt itself to the logic of ‘full-spectrum dominance’. Here was official acceptance that future conflicts will be played out not only across the territories of land, sea, air and space, but also across the frequencies of the electromagnetic spectrum. They will involve cyber-attacks using malware, zero-day threats exploiting previously unknown software vulnerabilities and distributed denial-of-service attacks using botnets. They will also, of course, include the age-old tactics of military deception, psychological operations and social engineering. This all has implications for international law and the legitimacy of disaster response teams in conflict zones. For more on the legal side of cyber-war, see the Tallinn Manual:  http://www.nowandfutures.com/large/Tallinn-Manual-on-the-International-Law-Applicable-to-Cyber-Warfare-Draft-.pdf