On of the comments following the ISN piece was

The lynchpin to watch is Canada. Since moving into the south of the country this summer, its troops there have borne some of the heaviest fighting. At the same time its political investment in the success of the Afghan adventure is more in line with European members than with America or even the UK. The fear that a Canadian withdrawal will prompt a strategic re-evaluation in European capitals is a very real one.
Coming on top of that, CBC.ca just posted an interesting story

Military considers longer tours of duty in Afghanistan
Last Updated: Sunday, October 22, 2006 | 11:32 AM ET
CBC News

The Canadian military wants to increase the time served by its troops in Afghanistan to nine months, up from six, a general told soldiers gathered in Edmonton on Saturday.

Brig.-Gen Mark Skidmore spoke after a change of command ceremony that put him in charge of army forces in Western Canada.

The career soldier from London, Ont., took over the job from Brig.-Gen. Tim Grant, who will become commander of Task Force Afghanistan for six months.

"If you're a member of the Canadian military, particularly a soldier with a skill set that's required in Afghanistan, and you haven't been yet, I think chances are very good that the opportunity is going to be there to serve," Skidmore told the assembled troops at the Jefferson Armouries.

On Wednesday, Gen. Rick Hillier, chief of defence staff, said the Armed Forces will be looking outside combat units to find troops.

"We will re-role people that are in the training system right now but who are designed to be something else," he told the Commons defence committee.

... more
There are some very odd maneuvers going on politically here

Marc