Essentially, they all contribute aircraft to a pool. The Americans have the A-10 Warthog and the F-16, the Dutch have the F-16, the Royal Air Force has the Harrier, and there are a number of Apache attack helicopters that are also available.
They are all made available on a rotating basis, so when our people get into trouble and have to call for air cover, they don't know on that particular day who might actually show up. But they have a great working relationship with all of them, so that in fact we have assured delivery, if you will. A lot of work has been done to make sure the processes and procedures are independent of which country shows up.