--for me to say. There is currently a big debate within the Department of Peacekeeping Operations, and there was a paper issued recently about preventative peacekeeping. Traditionally it meant dividing the roles, observation missions, and so on.
The peacekeeping is definitely easy when it's between the two states. I think Canada should be looking into operations where its credibility can bring value and where there is a clear issue with the protection of civilians. That's not always the case now.