Below are links to two articles that differ on whether Harper’s plan represents the right course of action. Both authors have a lot of experience in government, but their arguments are based on very different understandings of what is, or is not possible under the circumstances, and what Canada’s priorities should be.
http://ottawacitizen.com/news/national/defence-watch/harpers-iraq-plan-may-make-matters-worse
http://cips.uottawa.ca/canada-got-it-about-right-in-iraq/
I expect more will get added to this debate as time goes on.
IR Theory & Practice 