Thanks for help.
It's a book about the Falklands, basically - a soldier's memoir of the war. Have tried the net, not much on there (I'm looking for a shot taken from behind so the soldier is not identifiable, because it's obviously not going to be about that specific soldier so would be odd if it showed the wrong face).
Have tried the gallery here too - couldn't see any Falklands stuff but could have been looking in the wrong place?
Am talking to photo agencies but it's surprisingly hard to find the right kind of image - though maybe not, given that the media access was heavily restricted in the conflict, so there were fewer pics taken.
One thought - if anyone has such an image, good quality obviously, I'd be happy to come to a financial arrangement for its use. It doesn't have to come from an agency. Obvioously, you must be the copyright holder, though.
cheers
Dan