A Guardian team led by photojournalist John D. McHugh has done a video-photo report of a U.S. army medevac team operating in Afghanistan.
The blurb:
A US medical evacuation (Medevac) crew chief recounts the most traumatic mission he has ever flown
Please note: this film includes images which some viewers may find distressing
Here's the hub page for the series Six Months in Afghanistan.