Thanks for sharing.
Along those lines, A&E has a new series
Dogs of War - Episodes, Video & Schedule - A&E Dogs of War which shows an organization (run by a veteran) that takes shelter dogs and trains them to be service dogs.
There are several organizations that help dogs and veterans. The Puppy Rescue Mission (501(c) charity)
Welcome to the Puppy Rescue Mission is one that helps reunite soldiers with their "battle buddies" and helps them bring back retired working dogs (bomb sniffing etc.) back to the U.S. when the dogs retire.