The effect of the existing sanctions from Canada, the United States, and the European Union, which were coordinated when this war started, has been to stop the Russian aggression from being worse than it is now. That's in the sense that these are things Russia has done, and we've put on sanctions to signal to Russia that the world is paying attention, finds this unacceptable, and will take measures to counter it.
What the sanctions haven't done, unfortunately—and part of the reason why we think they should be strengthened—is to get the Russians to change their policy. They've got them to not go as far as they perhaps would have, had there been absolutely no reaction.
I think Canada and certainly the rest of the international community wants the Russian army out of Crimea and the Donetsk and Luhansk oblasts. To achieve that, I think a lot more pressure has to be put on the Russian government.