Guide dogs aren't only for people who have difficulty seeing, they're also for those "who have seen too much."
That's the premise illustrated in a powerful new ad from the Royal Dutch Guide Dog Foundation, a nonprofit in the Netherlands that trains and places assistance dogs where they're needed -- including with veterans suffering from post-traumatic stress disorder.
The spot highlights one veteran enduring a nightmare on an unknown battlefield, and the touching response of a canine companion in helping him cope.
Though research on how service animals help veterans deal with PTSD is still in its early stages, the U.S. Department of Veterans Affairs acknowledges the presence of a trusted dog has numerous emotional benefits and helps reduce stress.
WATCH the touching guide dog commercial, above.