The Brussels Griffon originated in Belgium and was bred to be a companion to people. There are 3 types of this breed which vary slightly in coat texture and length. The Griffon Bruxellois has a wiry texture that is of shorter length (about an inch long).
The Petit Brabancon has the opposite, a soft short coat like that of a Boxer. Finally, the Griffon Belge has a wiry textured coat similar to the Griffon Bruxellois but will be a red & black or black & tan colour.
All 3 of these varieties are considered the same breed and are becoming more common in modern day. During the war these dogs were wiped out so much that they were a rarity, but have flourished and re-emerged into popular culture once again due to appearances on TV shows and movies.