If you have any comments on Canada's decision to not participate in the war then you can call this number 1-866-880-4378.
I got the phone number from my English 112 professor and she said that your call is directed to an actual operator and not a voice recording. They'll ask you for your opinion and then take down your name and phone number if you don't mind giving it to them.
What they're gonna do with this information I have no idea... But if you wanna bitch or complain this is the number to call.