Helicopter blades spin as a Medevac flight prepares to launch a rescue mission for 2 US soldiers, wounded in an Improvised Explosive Deviece (IED) attack, in Paktika province, Afghanistan, 21 July, 2008. Also known by their call sign "Dust Off"," the Medevac pilots, crew and medics are ready to fly at a moments notice, picking up Coalition soldiers as well as Afghans that require help.(John D McHugh)