If you've just gotten off Starship Enterprise with your Alfa 177 canine then you must have the Star Trek : The Original Series official dog collar with the company insignia on it with you. This is to impress all the other pooches in the neighbourhood about your dog's outer space credentials. The hardest part, everybody agrees, is deciding which division your dog belongs to.
You can have red for your security dogs that watch over everything with a faithful eye and are ever suspicious of abrupt movements. Red can go with communication dogs too, who are all the time ready to yip "Howling frequencies open, Sir!" Blue is for hunting dogs of all sizes and shapes, who are eager to dive into the field and research the area for you. Gold is for...whoever is in command and we all know who is, right?