Here it says many Canadian soldiers are dying in Afghanistan not actually fighting but from roadside bombs. And they die from roadside bombs because the Canadian military can't afford helicopters to ferry soldiers around the country.
A deadly month, a deadly legacy in Afghanistan - The Globe and Mail
As British politicians are now acknowledging, sending ill-equipped troops to wage war is a recipe for disaster. In Afghanistan, the lack of helicopters has made soldiers extremely vulnerable to roadside bombs – the Taliban weapon of choice – which have accounted for about two of every three NATO deaths in July.
Britain's 9,000 troops in Helmand have 23 helicopters for transport; Canada only recently acquired this capability. Although the Canadian toll in July has not been as grim –
only five soldiers have been killed – our casualty rate is still the highest among the allies. And, when surging U.S. troops turn their attention to Kandahar as they've been doing this month in Helmand, things could get a lot worse.