You know, that's an interesting question. I don't think there's a specific reference to responsibility to protect in this strategic concept. My recollection of the debates around the development of the document is that they were not too much about that.
In essence, NATO is about defending the interests and security of its members where that is threatened. The operation in Kosovo was very much about the fact that this region right next to NATO's borders was burning. There were refugees going in every direction. It had every potential to spread. Afghanistan, while not formally a response to the September 11 attack, was clearly because we felt, allies felt, that Afghanistan posed a threat to everybody.
I don't think the principal motivation for going to Afghanistan was to protect the civilians. That was very much part of the role, but the motivation for going was to ensure that Afghanistan could not be a safe haven for a terrorist attack against us and everybody else.
Libya was a little bit different, that's true, but that comes back to what I was discussing before. I think in the case of Libya, it did pose a threat to our security interests. My own feeling is that Libya was taken on by NATO principally because there was no other way for this UN mandate to be executed. But responsibility to protect is not here.