Were the cheers from the media?
In the video I saw, the cheers were too loud to have come from only the media. The camera was centered on the soldier who asked the question. Two or maybe three of the six or eight other soldiers in the picture were cheering.
I thought the most disturbing part of the whole thing was the cheering. It makes it look as if there is a LOT of disgruntled troops, and that's just what the Libs like to hear.