A Guardian reader bristles at the new intervention:

I fail to see just how this is anything to do with the North Atlantic Treaty Organisation. Nato exists as a mutual defence pact in the event that one member country is attacked, all members are deemed to have been attacked and all members retaliate appropriately under Nato command. Only one country has been attacked – Libya is not a member state and the attackers are. The Nato involvement in Afghanistan was stretching the purpose of the treaty to breaking point but this has gone too far. If the US, France and UK need a legitimate "umbrella" organisation to cover their aggression then come up with a new one.

Judah Grunstein uses the NATO intervention as an opportunity to examine global security gaps.