I was a bit far away from the action to get a good shot of this but, during the aviation exercise recently conducted between multiple agencies at Arlington, there were support teams for emergency requirements which included some dog teams.  I saw the dog teams head to the helicopters to head out to one of the exercise locations and then return later.  The dogs were wearing goggles to protect them while around the helicopters and airborne.  I would love to have been a bit closer to get some better shots but sadly that wasn’t the case.