ALSO WRONG. Spr Earl was correct in pointing out the PM's considerable power to deploy troops compared to US Presidents (and many other heads of state / govt.)
The PM can deploy troops (whether declaring war or not) acting in his executive role without any input or real oversight from the legislative branch (House of Commons / Senate). No debate is required within Parliament.
The President, on the other hand, needs the consent of Congress in order to make any troop deployment of any real duration. While the President may be the Commander-in-Chief, he still needs a CONGRESSIONAL declaration of war or authorization to use military force to commit troops to any given conflict:
"Portions of the War Powers Resolution require the President to consult with Congress prior to the start of any hostilities as well as regularly [throughout] until U.S. armed forces are no longer engaged in hostilities (Sec. 3); and to remove U.S. armed forces from hostilities if Congress has not declared war or passed a resolution authorizing the use of force, within 60 days (Sec. 5(b))."
- http://en.wikipedia.org/wiki/War_Powers_Resolution
So, its true that the Canadian PM has a relatively large amount of executive power compared to other leaders. Furthermore, people aren't "pissed at Bush" because he "acted on his own as Commander-in-Chief"... Bush couldn't have acted alone as Commander-in-Chief because he needed Congress' support. People are "pissed" because many see the official arguments for invading Iraq as unfounded.
Wikipedia is just as useful as Google.