I assume by that you mean the use of multiple different troop-contributing countries within a single.... Okay.
It differs from country to country. I think one of the main difficulties has been a wide variety of training and capacities across different kinds of peacekeepers. In some of the most important missions in terms of protection of civilians and those other key tasks, having a widely differentiated set of troop contributors has been a challenge.
I think that points to the need for countries like Canada to engage even more.
Linguistic challenges are obviously there, especially in a lot of the francophone missions and many of the troops from the region are francophone. Having anglophone staff officers creates a strange asymmetry, I've found, and having more francophone staff officers would obviously be helpful.
I think there is an underlying dynamic where the African Union still considers sometimes the UN to be a slightly western imposition, so those partnerships that I was talking about—bringing in the neighbouring states, partnering with the African Union, partnering with the ECCAS and others—have helped address some of those issues of multinational tensions. I think, actually, there's a lot of success there on the ground, despite not particularly good success in places like Darfur on the ground.