High Quality Content by WIKIPEDIA articles! The Black Russian Terrier (Russian: Чёрный терьер), abbreviated as BRT, or Stalin`s dog (Sobaka Stalina) is a breed of dog, developed to serve as guard dog and police dog. It is rare outside the countries of the former Soviet Union but beginning to be formally recognized elsewhere: in July 2004, for instance, it became one of the AKC`s recognized breeds.