Thank you. That's a great question. I think it will be interesting to see how the alliance addresses that issue more specifically. What you want to do is to make sure you maintain the political cohesion of the alliance at 28. But you have to give space to those countries who want to do more to do more, and to those who have to do less to do less.
What you saw around Libya were ad hoc like-minded coalitions within NATO. You saw that within Afghanistan too, where Canada was in the group of the RC-South countries that were doing the heavy fighting in the south. That's emerging as a matter of practice.
What you have to make sure of is how you reconcile that matter of practice with the overarching political cohesion of this alliance. The decisions to do things, like Libya or Afghanistan, are taken at 28. Then you give countries the space under that chapeau to do what it is they are able to do, politically or practically or whatever else.