Well, the answer to the second half of the question is, of course they do.
The answer to the first half of the question is that if we withdrew the Canadian battle group from the brigade in the south, it would make the position of the rest of the brigade perhaps untenable, because in Kandahar we sit on a line of communications that supplies the British battle group in Helmand province. The entire brigade is composed of some of our closest historic allies--the Brits, the Danes, the Dutch, the Australians--people who have been the closest to us over many years. As a consequence, the possibility exists that this would have a devastating impact on our reputation.