So Russia is talking about preemptive attacks on terrorist bases, and British Foreign Minister Jack Straw says:

“I think the reaction is an understandable one by President Putin,” ... “The United Nations charter does give the right of self-defence and the UN itself has accepted that an imminent or likely threat of terrorism certainly entitles any state to take appropriate action.

The ICJ claimed that there is no right to self-defence from a threat not associated with a foreign state. Amazing hypocrisy - you expect that from Russia, but it's particularly notable coming from the UK.