Thank you.
With regard to that series of interrelated questions, let me tackle the first one: what are the goals.
We're operating of course under the UN mandate, and the UN mandate's principal goal is the protection of civilians: the protection of the Libyan people from attack. That's one of the key goals we are there for. That is one of the reasons for the particular missions that are being flown. Of course when you're going to put air resources into the country, there is the issue of risk that would apply to those air forces if they were being shot at by ground surface-to-air missiles and that kind of thing.
There is a suppression of air capability that's essential before you can fully implement a no-fly zone. Perhaps General Lawson could add a couple of points on that.