I think in Canada we've come a long way--that's because we had a long way to come--by way of coordination between the agencies in this town when we're fighting a war overseas. It took a while, but it's certainly a heck of a lot better now.
With regard to utilizing regional forces, I have to say that worldwide the potential is there--I remember writing on it 20 years ago--for some of these regional forces. In Africa it's particularly challenging because of the tension between the countries that are contributing forces to that common chain of command. Funnily enough, some nation like Canada would have a lot to contribute by way of command and control, being seen as somewhat neutral and with a fairly decent international reputation, to give guidance.
As you know, we have about 35 or 37 officers right now in the Congo and in southern Sudan doing just that, being invaluable in the operations of organization headquarters.